Global Hobby Fokker D-VII Instructions For Final Assembly

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INSTRUCTIONS FOR FINAL ASSEMBLY
To make your modeling experience totally enjoyable, we recommend that you get experienced, knowledgeable help with assembly and during your first flights. Your local hobby shop has information about flying clubs in your area whose membership includes qualified instructors. W e also recommend that you contact the AMA at the address below. They will be able to help you locate a flying field in your area.
Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN 47302-9252
(800) 435-9262
www.modelaircraft.org
Global guarantees this kit to be free from defects in both material and workmanship at the date of purchase. This does not cover any component parts damaged by use, misuse or modification. In no case shall Global's liability exceed
the original cost of the purchased kit.
In that Global has no control over the final assembly or material used for final assembly, no liability shall be assumed for any damage resulting from the use by the user of the final user-assembled product. By the act of using the final user-assembled product, the user accepts all resulting liability.
The Fokker D-VII ARF is distributed exclusively by Global Hobby Distributors
18480 Bandilier Circle, Fountain Valley, CA 92728
All contents copyright © 2000, Global Hobby Distributors Version V1.0 9/00
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TABLE OF CONTENTS
Safety Warning ............................................................... 2
Introduction .................................................................... 3
Kit Contents....................................................................4
Additional Items Required ............................................. 5
Tools and Supplies Required ......................................... 5
Metric Conversion Chart................................................ 5
A Note About Covering ................................................. 6
Bottom Wing Assembly.................................................6
Installing the Dihedral Brace ..................................6
Joining the Wing Halves......................................... 7
Top Wing Assembly....................................................... 7
Installing the Dihedral Brace ..................................7
Joining the Wing Halves......................................... 8
Bottom Wing Mounting ................................................. 9
Aligning the Wing...................................................9
Installing the Blind Nuts ......................................... 9
Installing the Wing Bolt Doubler .........................10
Mounting the Wing ...............................................1 0
Horizontal Stabilizer .................................................... 10
Aligning the Stabilizer .......................................... 10
Mounting the Stabilizer ........................................ 11
Vertical Stabilizer .........................................................12
Aligning the Stabilizer .......................................... 12
Mounting the Stabilizer ........................................ 12
Installing the Triangle Stock................................. 12
Top Wing Mounting .....................................................13
Installing the Cabane Struts ..................................13
Installing the Outer N-Struts................................. 14
Aligning the Top Wing ......................................... 15
Mounting the Top Wing........................................ 15
Control Surface Hinging .............................................. 16
Hinging the Ailerons............................................. 16
Hinging the Elevator .............................................17
Hinging the Rudder............................................... 17
Tail Wheel Installation................................................. 18
Tail Wheel Bracket Assembly .............................. 18
Mounting the Tail Wheel Bracket ........................ 18
Installing the Tail Wheel.......................................19
Main Gear Installation ................................................. 19
Installing the Gear Bracket ................................... 19
Installing the Gear Wing....................................... 20
Installing the Main Gear Wheels ..........................20
Engine Installation ....................................................... 21
Mounting the Engine to the Motor Mounts.......... 21
Aligning the Motor Mount Assembly .................. 21
Mounting the Engine to the Firewall.................... 22
Fuel Tank ......................................................................23
Stopper Assembly ................................................. 23
Installing the Stopper Assembly ..................................23
Installing the Fuel Tank ........................................ 24
Servo Installation ......................................................... 24
Installing the Fuselage Servo Tray .......................24
Installing the Aileron Servo Tray ......................... 24
Installing the Servos ............................................. 25
Throttle Pushrod........................................................... 25
Installing the Servo Connector ............................. 25
Adjusting the Throttle Linkage ............................ 26
Rudder Pushrod............................................................ 27
Installing the Control Horn................................... 27
Installing the Pushrod ........................................... 27
Adjusting the Rudder Pushrod..............................28
Elevator Pushrod .......................................................... 29
Installing the Control Horn................................... 29
Installing the Pushrod ........................................... 29
Adjusting the Elevator Pushrod............................ 30
Aileron Pushrods.......................................................... 31
Installing the Pushrods.......................................... 31
Adjusting the Aileron Pushrods............................32
Windscreen................................................................... 32
Trimming the Windscreen ....................................32
Mounting the Windscreen ..................................... 32
Machine Gun ................................................................33
Joining the Machine Gun Halves ......................... 33
Mounting the Machine Gun.................................. 33
Cowling ........................................................................ 34
Aligning the Cowl................................................. 34
Mounting the Cowl ............................................... 34
Final Assembly............................................................. 35
Installing the Switch ............................................. 35
Installing the Battery and Receiver ...................... 36
Balancing...................................................................... 36
Balancing the Fokker D-VII ................................. 36
Lateral Balancing .................................................. 37
Control Throws ............................................................ 37
Preflight Check.............................................................3 7
Safety............................................................................ 37
Flying the Fokker D-VII .............................................. 38
Notes............................................................................. 38
Product Evaluation Sheet.............................................39
SAFETY WARNING
This R/C airplane is not a toy! If misused, it can cause serious bodily injury and/or damage to property. Fly only in open areas and preferably at a dedicated R/C flying site. We suggest having a qualified instructor carefully inspect your airplane before its first flight. Please carefully read and follow all instructions included with this airplane, your radio control system and your engine.
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INTRODUCTION
Thank you for choosing the Global Fokker D-VII ARF and welcome to the exciting world of WWI R/C airplanes! W e are sure that you will appreciate the high quality , easy assembly and excellent flight characteristics of the Fokker D-VII ARF.
The full size Fokker D-VII was a single seat fighter that featured fabric-covered wings with plywood ribs and plywood leading edges. The fuselage was wire-braced steel tubing, completely fabric-covered except for the cowling, which was sheet steel. The two most successful engines used in the Fokker D-VII were the Mercedes 160 H.P. and the BMW 185 H.P. engines. The Fokker D-VII, designed by Reinhold Platz, was a clean, simple-looking biplane, equipped with two Maxim 08/15 7.92mm machine guns.
The Fokker D-VIIs were so successful that, in August of 1918 alone, they shot down 565 Allied aircraft. One thing that made the Fokker D-VII such a formidable opponent was the fact that it could hang 45 degrees on its prop and shoot without stalling. By doing this, the Fokker D-VII could fly up under the bellies of enemy aircraft and shoot them down. The Fokker D-VII could climb 5000 meters in 16 minutes, fly at a ceiling of 19,685 feet, and had an insurance of 90 minutes. The aircraft had an approximate top speed of 124 mph.
Now you too can feel what that was like with your own Stand-Off Scale R/C model of the Fokker D-VII. When you open up the box, you'll notice that you won't have much left to do or to purchase to finish your new airplane. The Fokker D-VII is a complete kit. Wire Spoke wheels, fuel tank, pushrods, clevises and other hardware are all included. The airframe is completely prebuilt and covered by master craftsmen, who take their time to ensure that every part is straight and properly glued.
W e hope you enjoy your new Fokker D-VII ARF as much as we have enjoyed designing and building it for you. If you have any questions or comments, please feel free to contact us. We have also included a product survey in the back of this manual. Please take the time to fill it out and send it to us. We would enjoy hearing any comments or suggestions you may have.
This instruction manual is designed to guide you through the entire final assembly process of your new Fokker D-VII ARF in the least amount of time possible. Along the way you'll learn how to properly assemble your new airplane and also learn many tips that will help you in the future. We have listed some of our recommendations below. Please read through them before going any further.
Please read through each step before starting assembly. You should find the layout very com­plete and simple. Our goal is to guide you through assembly without any of the headaches and hassles you might expect.
There are check boxes next to each step. After you complete a step, check off the box. This will help you keep from losing your place.
Cover your work table with brown paper or a soft cloth, both to protect the table and to protect the individual parts.
If you should find a part missing or damaged, or have any questions about assembly , please contact us at the address below:
Keep a couple of small bowls or jars handy to put the small parts in after you open the accessory bags.
We're all excited to get a new airplane in the air, but take your time. This will ensure that you build a straight, strong and great flying airplane.
If you come across this symbol , it means that this is an important point or an assembly hint.
Global Hobby Distributors Customer Care
18480 Bandilier Circle
Fountain Valley, CA 92728
Phone: (714) 963-0329
Fax: (714) 964-6236
E-mail: service@globalhobby.net
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KIT CONTENTS
AIRFRAME ASSEMBLIES
{1} Fuselage w/Pushrod Housings{1} Top Wing - Right & Left Halves{1} Bottom Wing - Right & Left Halves{1} Horizontal Stabilizer w/Elevator & Hinges{1} Vertical Stabilizer w/Rudder & Hinges{1} Molded Fiberglass Cowl{1} Molded Clear Windscreen{1} Molded Plastic Machine Gun
MAIN LANDING GEAR ASSEMBLY
{2} Wire Spoke Main Gear Wheels{1} Precovered Landing Gear Wing{1} Wire Landing Gear Strut{2} Nylon Landing Gear Strap - Small Slot{2} Nylon Landing Gear Strap - Large Slot{8} 3mm x 12mm Wood Screws{2} Nylon Wheel Spacers{2} Wheel Collars w/3mm x 6mm Machine Screws{2} Nylon Landing Gear Wing Mounts{2} 3mm x 6mm Machine Screws{4} 2mm x 5mm Wood Screws
TAIL WHEEL ASSEMBLY
{1} Prebent Tail Wheel Wire{1} 25mm Diameter Wheel{1} Nylon Mounting Bracket{1} Nylon Steering Arm{2} 1.5mm Wheel Collars{2} 3mm x 6mm Machine Screws{3} 3mm x 12mm Wood Screws{1} 2mm x 10mm Wood Screw
ELEVATOR CONTROL SYSTEM
{1} Nylon Pushrod Tube{1} 2mm x 90mm Threaded Wire w/L-Bend{1} 2mm x 100mm Threaded Wire{1} Nylon Clevis{1} Nylon Snap Keeper{1} Nylon Control Horn w/Backplate{2} 2mm x 15mm Machine Screws
RUDDER CONTROL SYSTEM
{1} Nylon Pushrod Tube{1} 2mm x 90mm Threaded Wire w/L-Bend{1} 2mm x 100mm Threaded Wire{1} Nylon Clevis{1} Nylon Snap Keeper{1} Nylon Control Horn w/Backplate{2} 2mm x 15mm Machine Screws
AILERON CONTROL SYSTEM
{2} 2mm x 50mm Threaded Wires w/L-Bends{2} Nylon Clevises{2} Nylon Snap Keepers
THROTTLE CONTROL SYSTEM
{1} 1.5mm x 350mm Wire w/Z-Bend{1} Adjustable Servo Connector Assembly
WING STRUT ASSEMBLIES
{4} Aluminum Cabane Struts (2 left & 2 right){4} Aluminum Wing Mounts (2 left & 2 right){2} Upper Strut Stabilizer Rods (1 left & 1 right){2} Lower Strut Stabilizer Rods (1 left & 1 right){2} Aluminum Strut Stabilizer Rod Clamps{2} Precovered Outer N-Struts{8} 3mm x 12mm Wood Screws{4} 3mm x 15mm Machine Screws{4} 3mm Nylon Insert Nuts{4} 3mm x 10mm Wood Screws{8} 3mm Blind Nuts{4} 3mm Split Washers{12}3mm x 10mm Machine Screws{12}3mm Flat Washers
MOTOR MOUNT ASSEMBLY
{2} Nylon Motor Mount Beams{4} 3mm x 20mm Machine Screws{4} 3mm x 25mm Machine Screws{4} 3mm Nylon Insert Nuts{4} 3mm Blind Nuts{12}3mm Flat Washers
FUEL TANK ASSEMBLY
{1} Molded Fuel Tank{1} Rubber Stopper{1} 20mm Diameter Front Plate{1} 17mm Diameter Back Plate{1} 3mm x 18mm Machine Screw{1} Weighted Fuel Pick-Up{3} Aluminum Tubes{1} Silicon Fuel Tubing
MISCELLANEOUS ITEMS
{1} Top Wing Dihedral Brace (W-25){1} Bottom Wing Dihedral Brace (W-26){2} Precovered Triangle Stock (RT-8){1} Precovered Square Stock{1} Wing Bolt Doubler (W-30){1} Aileron Servo Tray (W-9C){1} Rear Aileron Servo Tray Block (W-9B){1} Front Aileron Servo Tray Block (W-9A){1} Fuselage Servo Tray (D-38){6} 3mm x 6mm Wood Screws{2} 4mm x 25mm Machine Screws{2} 4mm Flat Washers{2} 4mm Blind Nuts{1} 40mm Clear Tubing
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ADDITIONAL ITEMS REQUIRED
{1} Hitec Focus 4FM Radio w/4 Servos{1} Dubro 1/4" Foam Rubber # 868638{1} Global XX-Silicon Fuel Line # 115923{1} Magnum Fueling Valve # 237500
IF YOU USE A TWO CYCLE ENGINE...
{1} Williams Bros. 2-5/8" Pilot # 592659{1} Ernst External Charge Jack # 223730{1} Cirrus On-Board Battery Indicator # 444762{1} Formula-U Flat Black Paint # 586859
OPTIONAL ITEMS
{1} Goldberg 1/4" Black Trim Tape # 582023
{1} Magnum XL .46ARNV Engine # 210746{1} APC 11 x 6 Propeller # 608560{1} Thunderbolt R/C Long Glow Plug # 115493
IF YOU USE A FOUR CYCLE ENGINE...
{1} Magnum XL .52RFS Engine # 210980{1} APC 12 x 6 Propeller # 608660
The optional Ernst Charge Jack and Cirrus On-Board Battery Indicator are for use with Hitec and JR Radio systems. These items are also available for use with Futaba and Airtronics radio systems. Please check with your retailer for availability.
{1} Thunderbolt 4-Cycle Glow Plug # 115490
For a more scale appearance we recommend that you paint the aluminum wing strut mount system flat black. If you decide to do this you should first roughen each part using fine grade sandpaper (400 grit works well) then wash the parts in soap and warm water to remove any oil residue. Paint the individual parts before mounting them to the airplane.
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thin C/A # 887500Kwik Bond Thick C/A # 887510Kwik Bond 5 Minute Epoxy # 887560Kwik Bond 30 Minute Epoxy # 887565Formula-560 Canopy Glue # 339176Pacer Blue Thread Lock # 339162Wilhold Silicon Sealant # 335407Robart Incidence Meter # 561554Excel Modeling Knife # 692808Magnum Tubing Bender # 237474Ernst Airplane Stand # 223977Masking Tape # 229685Electric DrillAssorted Drill BitsDremel T ool w/Assorted Bits
Straight Edge RulerPhillips Head ScrewdriverWire CuttersNeedle Nose PliersScissorsPen or PencilBuilder's Triangle220 Grit Sandpaper w/Sanding BlockPaper T owelsRubbing AlcoholW axed PaperMachine Oil or VaselineNHP Epoxy Mixing Sticks # 864204NHP Mixing Cups # 864205
METRIC CONVERSION CHART
To convert inches into millimeters: Inches x 25.4 = mm
1/64" = .4mm 1/32" = .8mm 1/16" = 1.6mm 3/32" = 2.4mm 1/8" = 3.2mm 5/32" = 4.0mm
3/16" = 4.8mm 1/4" = 6.4mm 3/8" = 9.5mm 1/2" = 12.7mm 5/8" = 15.9mm 3/4" = 19.0mm
1" = 25.4mm 2" = 50.8mm 3" = 76.2mm 6" = 152.4mm 12" = 304.8mm 18" = 457.2mm
21" = 533.4mm 24" = 609.6mm 30" = 762.0mm 36" = 914.4mm
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A NOTE ABOUT COVERING
The covering material used on the Fokker D-VII is a heat shrink polyester material. Because of this, it is possible with heat and humidity changes that the covering on your airplane may wrinkle or sag. This trait is inherent in all types of heat shrink material. T o remove the wrinkles you will need to purchase, or borrow from a fellow modeler, a heat iron. If you need to purchase one, the Global Sealing Iron # 360900 is recommended.
Follow these simple steps to remove the wrinkles:
1) Plug in and turn on the sealing iron to the medium temperature setting. Allow the iron to heat up for approximately 5 - 7 minutes.
2) After the iron has reached temperature, lightly apply the iron to the wrinkled section of the cover­ing. Move the iron slowly over the wrinkled section until the covering tightens and the wrinkles disappear. You will notice that the color of the covering will darken when it is heated. When the covering cools back down, it will return to its normal color.
If the color layer smears from any of the seams, the temperature of the iron is too hot. Turn the tempera-
ture dial down and wait about 5 minutes for the iron to adjust to the lower temperature. You can remove any excess color streaks using a paper towel soaked with a small quantity of acetone.
BOTTOM WING ASSEMBLY
PARTS REQUIRED
{1} Bottom Wing - Right & Left Halves{1} Bottom Wing Dihedral Brace (W-26)
TOOLS AND SUPPLIES REQUIRED
Kwik Bond 30 Minute EpoxyExcel Modeling KnifeMasking TapeStraight Edge RulerPen or Pencil220 Grit Sandpaper w/Sanding BlockPaper TowelsRubbing AlcoholNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
INSTALLING THE DIHEDRAL BRACE
1) Look carefully at the surface of each root rib on both wing halves. Notice how the excess cover­ing material overlaps onto them. Using a modeling knife, carefully trim and remove the excess from both of the root ribs, leaving about 1/16" of covering ma­terial overlapping so it does not pull away later.
2) Using a straight edge ruler and a pen, locate and mark the centerline of the plywood dihedral brace (W-26). Draw one vertical line, on each side of the brace, at this location. See photo # 1 below.
Photo # 1
3) Test fit the plywood dihedral brace into the plywood dihedral brace box in each wing half. The brace should slide into each wing half up to its cen­terline. If it does not, remove the brace and lightly sand the edges and tips until the proper fit is obtained.
See photo # 2 below.
Photo # 2
Removing most of the covering from the two
root ribs will expose more of the wood. This will result in a stronger joint when the wing halves are epoxied together later.
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The dihedral brace is cut in the shape of a "V".
The "V" shape should face the top surface of the wing when the brace is installed.
4) T est fit both of the wing halves together with the dihedral brace temporarily installed (without us­ing glue). Look carefully at the center section joint: the wing halves should fit together tightly with few or no gaps in the joint. See photo # 3 below.
Photo # 3
10) Mix a generous amount of Kwik Bond 30 Minute Epoxy. Apply a thin layer of epoxy to the exposed half of the dihedral brace, the inside of the second wing half, and the entire surface of both root ribs. Make sure to use enough epoxy to fill any gaps.
11) Slide the two wing halves together and care­fully align them at both the leading and trailing edges. Wipe away any excess epoxy, using a paper towel and rubbing alcohol, and use several pieces of mask­ing tape to hold the two wing halves aligned until the epoxy fully cures.
12) Once the epoxy has fully cured, double­check the center section joint. If any gaps are present, mix a small amount of Kwik Bond 30 Minute Epoxy and carefully fill any remaining gaps. Remove any excess epoxy using a paper towel and rubbing alco­hol, and allow the epoxy to thoroughly cure.
5) If the center section joint is not tight, remove the wing halves and the dihedral brace, and lightly sand the edges and tips of the brace. T est fit the wing halves together with the dihedral brace installed again and repeat until you are satisfied with the fit. Once you are satisfied with the fit, remove the wing halves and the dihedral brace.
It is important that the wing halves fit together
properly. The better the fit, the stronger the center section joint will be.
6) Following the instructions on the packaging, mix a generous amount of Kwik Bond 30 Minute Epoxy. Mix the epoxy for about 1 minute. This will ensure that both parts are thoroughly incorporated.
7) Working with only one wing half for now, apply a thin layer of epoxy inside the plywood dihe­dral brace box and to only half of the dihedral brace. Make sure to cover the top and bottom, as well as the sides, and use enough epoxy to fill any gaps.
8) Slide the dihedral brace into the wing half up to its centerline. Remove any excess epoxy be­fore it dries, using a paper towel and rubbing alcohol. Allow the epoxy to fully cure before proceeding.
13) Once the epoxy has fully cured, carefully remove the masking tape from the wing.
TOP WING ASSEMBLY
PARTS REQUIRED
{1} Top Wing - Right & Left Halves{1} Top Wing Dihedral Brace (W-25)
TOOLS AND SUPPLIES REQUIRED
Kwik Bond 30 Minute EpoxyExcel Modeling KnifeMasking TapeStraight Edge RulerPen or Pencil220 Grit Sandpaper w/Sanding BlockPaper TowelsRubbing AlcoholNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
INSTALLING THE DIHEDRAL BRACE
1) Look carefully at the surface of each root rib on both wing halves. Notice how the excess cover­ing material overlaps onto them. Using a modeling knife, carefully trim and remove the excess from both of the root ribs, leaving about 1/16" of covering ma­terial overlapping so it does not pull away later.
JOINING THE WING HALVES
9) Once the epoxy has fully cured, trial fit both wing halves together again to double check that the wing halves still fit together properly.
Removing most of the covering from the two
root ribs will expose more of the wood. This will result in a stronger joint when the wing halves are epoxied together later.
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2) Using a straight edge ruler and a pen, locate and mark the centerline of the plywood dihedral brace (W-25). Draw one vertical line, on each side of the brace, at this location.
6) Following the instructions on the packaging, mix a generous amount of Kwik Bond 30 Minute Epoxy . Mix the epoxy for about 1 minute. This will ensure that both parts are thoroughly incorporated.
3) Test fit the plywood dihedral brace into the plywood dihedral brace box in each wing half. The brace should slide into each wing half up to its cen­terline. If it does not, remove the brace and lightly sand the edges and tips until the proper fit is obtained.
See photo # 4 below.
Photo # 4
The dihedral brace is cut straight, so it doesn't
matter which direction it is installed into the wing.
4) Test fit both of the wing halves together with the dihedral brace temporarily installed (without us­ing glue). Look carefully at the center section joint: the wing halves should fit together tightly with few or no gaps in the joint. See photo # 5 below.
Photo # 5
7) Working with only one wing half for now, apply a thin layer of epoxy inside the plywood dihe­dral brace box and to only half of the dihedral brace. Make sure to cover the top and bottom, as well as the sides, and use enough epoxy to fill any gaps.
8) Slide the dihedral brace into the wing half up to its centerline. Remove any excess epoxy be­fore it dries, using a paper towel and rubbing alcohol. Allow the epoxy to fully cure before proceeding.
JOINING THE WING HALVES
9) Once the epoxy has fully cured, trial fit both wing halves together again to double check that the wing halves still fit together properly.
10) Mix a generous amount of Kwik Bond 30 Minute Epoxy. Apply a thin layer of epoxy to the exposed half of the dihedral brace, the inside of the second wing half, and the entire surface of both root ribs. Make sure to use enough epoxy to fill any gaps.
11) Slide the two wing halves together and care­fully align them at both the leading and trailing edges. Wipe away any excess epoxy using a paper towel and rubbing alcohol and use several pieces of mask­ing tape to hold the two wing halves aligned until the epoxy fully cures.
5) If the center section joint is not tight, remove the wing halves and the dihedral brace, and lightly sand the edges and tips of the brace. T est fit the wing halves together with the dihedral brace installed again and repeat until you are satisfied with the fit. Once you are satisfied with the fit, remove the wing halves and the dihedral brace.
It is important that the wing halves fit together
properly. The better the fit, the stronger the center section joint will be.
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12) Once the epoxy has fully cured, double­check the center section joint. If any gaps are present, mix a small amount of Kwik Bond 30 Minute Epoxy and carefully fill any remaining gaps. Remove any excess epoxy , using a paper towel and rubbing alco­hol, and allow the epoxy to thoroughly cure.
13) After the epoxy has fully cured, carefully remove the masking tape from the wing. If any resi­due is left from the tape, it can be removed using a paper towel soaked with a small amount of rubbing alcohol.
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BOTTOM WING MOUNTING
PARTS REQUIRED
6) Remove the two ailerons from the wing and set them aside for now.
{1} Wing Bolt Doubler (W-30){2} 4mm x 25mm Machine Screws{2} 4mm Flat Washers{2} 4mm Blind Nuts
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thick C/AExcel Modeling KnifeErnst Airplane StandMasking TapeElectric Drill5/32" & 7/32" Drill BitsStraight Edge RulerPhillips Head ScrewdriverNeedle Nose PliersPen or Pencil
ALIGNING THE WING
1) Set the fuselage upside down in your airplane stand and place the bottom wing into the wing saddle. Align the two hardwood dowels in the leading edge of the wing with the two predrilled holes in the fuselage's forward bulkhead.
2) Carefully slide the wing forward, making sure that the two hardwood dowels fully engage the two predrilled holes in the forward bulkhead.
3) Using a ruler and a pen, locate the center­line of the fuselage, at the back edge of the wing saddle, and place a mark. See photo # 6 below.
7) Check that the wing is square to the fuse­lage. To do this use a ruler and carefully measure from the trailing edge of each wing tip to the back edge of the fuselage. Both of these measurements should be the same. See figure # 1 below.
Figure # 1
A = A-1
8) If the two measurements are not the same, carefully lift the masking tape and adjust the back of the wing until they are. When you are satisfied with the alignment, reattach the masking tape to hold the wing securely in place.
INSTALLING THE BLIND NUTS
9) Using a ruler and a pen, measure 3/8" in front of the trailing edge of the wing and place two marks, one on each side of the centerline. Now measure 1-9/32" out from each side of the centerline and place two marks. See photo # 7 below.
Photo # 7
Photo # 6
4) The joint where the two wing halves were glued together is the centerline of the wing. Align the centerline of the wing with the centerline you drew on the bottom of the fuselage.
5) While holding the wing in alignment, use a couple of pieces of masking tape to hold the wing securely to the fuselage.
10) Using a drill with a 5/32" drill bit, carefully drill two holes into the wing and down through the plywood wing hold down block inside the fuselage.
Angle the drill bit so that the holes will be per-
pendicular to the bottom of the wing. 11) Remove the wing from the wing saddle.
Using a drill with a 7/32" drill bit, enlarge only the two holes in the plywood mounting block.
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12) Install the two 4mm blind nuts into the bot­tom of the plywood mounting plate. Use a pair of needle nose pliers to squeeze the blind nuts up into place. See photo # 8 below.
Photo # 8
A balsa filler block has been preinstalled onto
the bottom of the plywood plate to make it easier to install the blind nuts.
18) Apply a generous amount of Kwik Bond Thick C/A to the bottom of the doubler. Set the dou­bler back into place and realign it. Hold the doubler firmly in place until the C/A fully cures.
19) Remove the wing from the wing saddle. Using a drill with a 5/32" drill bit, drill the two wing mounting screw holes through the wing bolt doubler. Use the holes you drilled through the wing as a guide.
MOUNTING THE WING
20) Place the wing back into the wing saddle and bolt it in place using the two 4mm x 25mm ma­chine screws and two 4mm flat washers. Tighten the screws firmly using a phillips head screwdriver. See
photo # 10 below.
13) With the blind nuts fully seated, carefully apply a bead of Kwik Bond Thick C/A around the bottom of each blind nut to lock them into place. Be careful not to get any glue into the threads and allow the C/A to fully cure before proceeding.
INSTALLING THE WING BOLT DOUBLER
14) Place the wing back into the wing saddle and realign it. Use a couple of pieces of masking tape to hold it in place.
15) Set the wing bolt doubler (W-30) in place on the bottom of the wing. The back edge of the doubler should be about 1/16" in front of the trailing edge and the sides of the doubler should be even with the sides of the fuselage. See photo # 9 below.
Photo # 9
16) While holding the wing bolt doubler in place, use a pen and outline the doubler onto the wing.
Photo # 10
HORIZONTAL STABILIZER
PARTS REQUIRED
{1} Horizontal Stabilizer w/Elevator & Hinges
TOOLS AND SUPPLIES REQUIRED
Kwik Bond 30 Minute EpoxyExcel Modeling KnifeErnst Airplane StandMasking TapeStraight Edge RulerPen or PencilBuilder's Triangle220 Grit Sandpaper w/Sanding BlockPaper TowelsRubbing AlcoholNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
ALIGNING THE STABILIZER
17) Remove the doubler from the wing. Using a modeling knife, carefully remove the covering from inside the outline you drew.
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1) Remove the elevator and hinges from the horizontal stabilizer and set them aside for now.
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2) Using a ruler and a pen, locate and mark the centerline of the horizontal stabilizer, at the trailing edge, and place a mark. Using a builder's triangle, extend this mark from front to back across the top and bottom of the stabilizer.
3) Using a modeling knife, carefully remove the covering from the tops of the stabilizer mounting sides on the fuselage. See photo # 11 below.
Photo # 11
4) Mount the bottom wing to the fuselage. With the fuselage securely in your airplane stand, set the stabilizer onto the stabilizer mounting sides. The trail­ing edge of the stabilizer should be even with the back edge of the fuselage.
5) Align the centerline mark on the trailing edge of the stabilizer with the center of the back edge of the fuselage. When that is aligned, hold the trailing edge of the stabilizer in that position using a piece of masking tape.
stabilizer tip on the same side. Do this for both sides. When the stabilizer is aligned properly , both of these measurements should be the same. See
figure # 3 below.
Figure # 3
C = C-1
8) When you are satisfied with the alignment, hold the stabilizer firmly in place using a couple of pieces of masking tape. Do not use glue yet!
MOUNTING THE STABILIZER
9) With the stabilizer held firmly in place, use a pen to draw lines onto the bottom of the stabilizer where it and the fuselage sides meet. Do this on both the right and left sides.
10) Remove the stabilizer from the fuselage. Using the lines you just drew as a guide, carefully remove the covering from between them using a modeling knife. See photo # 12 below.
6) With the stabilizer in place, look carefully from the front of the fuselage at both the wing and the stabilizer. When aligned properly, the stabilizer should be level with the wing. If it is not level, use 220 grit sandpaper and a sanding block to sand down the higher stabilizer mounting side until the correct alignment is achieved. See figure # 2 below.
Figure # 2
B = B-1
7) Now check to make sure that the tips of the stabilizer are equal distances from the tips of the wing. Use a ruler and measure from one wing tip to the
Photo # 12
When cutting through the covering to remove
it, cut with only enough pressure to cut through only the covering itself. Cutting into the balsa will weaken the stabilizer.
11) Mix a generous amount of Kwik Bond 30 Minute Epoxy. Apply a thin layer to the mounting area on the bottom of the stabilizer and to the tops of the stabilizer mounting sides and cross-member on the fuselage.
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12) Set the stabilizer back into place and realign it, double checking all of your measurements once more. When satisfied with the alignment, hold the stabilizer in place using several pieces of masking tape and remove any excess epoxy using a paper towel and rubbing alcohol before it cures. Allow the epoxy to fully cure before proceeding.
VERTICAL STABILIZER
PARTS REQUIRED
{1} Vertical Stabilizer w/Rudder & Hinges{2} Precovered Triangle Stock (RT-8)
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thick C/AKwik Bond 30 Minute EpoxyExcel Modeling KnifeErnst Airplane StandMasking TapePen or PencilBuilder's TrianglePaper TowelsRubbing AlcoholNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
lines you drew and from the bottom edge of the sta­bilizer. Also remove the covering from inside the outline you drew on top of the horizontal stabilizer.
See photo # 13 below.
Photo # 13
When cutting through the covering to remove
it, cut with only enough pressure to cut through only the covering itself. Cutting into the balsa will weaken the structure.
6) Set the vertical stabilizer back into place and realign it. Using a builder's triangle, check to ensure that the vertical stabilizer is aligned 90º to the hori­zontal stabilizer. See figure # 4 below.
Figure # 4
ALIGNING THE STABILIZER
1) Remove the rudder and the hinges from the stabilizer and set them aside for now.
2) Using a modeling knife, remove the cover­ing from over the top of the precut slot in the horizontal stabilizer.
3) Set the vertical stabilizer in place, making sure that the tab in the bottom of the stabilizer is pushed down firmly into the precut slot. The front of the stabilizer should also be lined up with the centerline you drew previously on the horizontal stabilizer.
MOUNTING THE STABILIZER
4) While holding the vertical stabilizer firmly in place, use a pen to draw a line on each side of it where it meets the top of the horizontal stabilizer. Also draw a line on top of the horizontal stabilizer around the base of the vertical stabilizer.
5) Remove the stabilizer. Using a modeling knife, carefully remove the covering from below the
7) Mix a generous amount of Kwik Bond 30 Minute Epoxy. Apply a thin layer to the mounting slot in the horizontal stabilizer and to the sides and bottom of the vertical stabilizer mounting area. Also apply epoxy to the top of the horizontal stabilizer.
8) Set the stabilizer back into place and realign it, double checking all of your measurements. Hold the stabilizer in place using several pieces of mask­ing tape and remove any excess epoxy using a paper towel and rubbing alcohol. Allow the epoxy to fully cure before proceeding.
INSTALLING THE TRIANGLE STOCK
9) Using a modeling knife, remove the cover­ing that overlaps onto the inner edges of the two pieces of precovered triangle stock.
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10) W orking with one piece of triangle stock for now, align it in the joint between the horizontal and vertical stabilizers. When it's properly aligned, the triangle stock should be even with the trailing edges of the stabilizers. See photo # 14 below.
Photo # 14
11) When satisfied with the alignment, hold the triangle stock in place and trace around it using a pen.
12) Remove the triangle stock. Using a model­ing knife, carefully remove the covering from inside the outline you drew.
13) Glue the triangle stock into place using Kwik Bond Thick C/A. Allow the C/A to cure com­pletely before proceeding.
The triangle stock adds a lot of strength to the
joint between the stabilizers. It is important that it be glued in securely.
TOOLS AND SUPPLIES REQUIRED
Kwik Bond 30 Minute EpoxyPacer Blue Thread LockRobart Incidence MeterExcel Modeling KnifeErnst Airplane StandMasking TapeElectric Drill5/64" & 1/8" Drill BitsStraight Edge RulerPhillips Head ScrewdriverNeedle Nose PliersPen or PencilNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
INSTALLING THE CABANE STRUTS
Setting the proper wing incidence is important
in any airplane; however, wing incidence is critical in a biplane to achieve good flight performance. In­cidence is the angle at which the flying surfaces (i.e., wings and stabilizer) flow through the air. The Fokker D-VII should be set up with the stabilizer at 0º, the bottom wing at 0º and the top wing at either 0º or -1º incidence. We highly recommend that you use an incidence meter to help you make these measure­ments. See figure # 5 below .
Figure # 5
14) Repeat steps # 10 - # 13 to install the sec­ond piece of triangle stock on the opposite side.
TOP WING MOUNTING
PARTS REQUIRED
{4} Aluminum Cabane Struts (2 left & 2 right){4} Aluminum Wing Mounts (2 left & 2 right){2} Upper Strut Stabilizer Rods (1 left & 1 right){2} Lower Strut Stabilizer Rods (1 left & 1 right){2} Aluminum Strut Stabilizer Rod Clamps{2} Precovered Outer N-Struts{8} 3mm x 12mm Wood Screws{4} 3mm x 15mm Machine Screws{4} 3mm Nylon Insert Nuts{4} 3mm x 10mm Wood Screws{8} 3mm Blind Nuts{4} 3mm Split Washers{12}3mm x 10mm Machine Screws{12}3mm Flat Washers
1) Using a modeling knife, remove the cover-
ing from over the four predrilled holes in each side of the fuselage. The first hole is located 5/8" back from the firewall and 5/8" up from the bottom of the fuselage. The second hole is located 5/8" back from the firewall and 2-5/8" up from the bottom of the fu­selage. The third and fourth holes are located 6-3/4" and 11-1/2" back from the firewall and 5/8" down from the start of the curve on the fuselage side.
2) Using a modeling knife, remove the cover­ing from over the two predrilled holes in both ends of each outer N-strut and the two predrilled holes in each outer N-strut mounting tab on the bottom wing.
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The top wing does not have predrilled outer
N-Strut mounting tabs. 3) Thread the two upper strut stabilizer rods
(shorter rods) into the two upper holes (one on each side) in the front of the fuselage. Thread the rods completely into place. When positioned properly the bend in the top end of each rod should point down.
6) Install one aluminum wing mount onto each of the two rear cabane struts using two 3mm x 10mm machine screws, two 3mm split washers and two 3mm nylon insert nuts. Do not completely tighten the screws at this time.
Install the wing mounts on the outside of the
cabane struts.
If the bends in the tops of the rods point up then
the rods are on the wrong side of the fuselage. 4) Thread the two lower strut stabilizer rods
(longer rods) into the two lower holes (one on each side) in the front of the fuselage. Thread the rods completely into place. When positioned properly, the bend in the top end of each rod should point up.
See photo # 15 below.
Photo # 15
5) Install the four aluminum cabane struts (2 left & 2 right) onto the fuselage sides using four 3mm x 15mm machine screws and four 3mm flat washers. Thread the screws through the elongated holes in each strut and into the fuselage, but do not completely tighten the screws at this time.
When installed properly, the cabane struts
should be angled forward toward the firewall and out from the fuselage sides. When you look at the tops of the struts from the front of the fuselage the struts should be nearly parallel with the fuselage sides. If they are not, you may have them on the wrong side. See figure # 6 below.
Figure # 6
7) Connect the two stabilizer strut rods on each side of the fuselage to the two aluminum strut rod clamps.
8) Install the two remaining aluminum wing mounts to the two front cabane struts, along with the two strut rod clamp assemblies. Use two 3mm x 10mm machine screws, two 3mm split washers and two 3mm nylon insert nuts to secure them into place. Do not completely tighten the screws at this time.
See photo # 16 below.
Photo # 16
INSTALLING THE OUTER N-STRUTS
9) Test fit the outer N-struts to the mounting tabs on the bottom wing. The struts are universal from right to left, but there is a difference between the top and the bottom. If the holes in the mounting tabs do not line up with the holes in the N-strut, turn the N-strut over.
The N-struts should be installed on the inside of
the mounting tabs.
10) When satisfied with the alignment, bolt the outer N-struts to the bottom wing using four 3mm x 10mm machine screws, four 3mm flat washers and four 3mm blind nuts. Tighten the screws firmly to draw the blind nuts into place.
14
The blind nuts should be installed on the inside
of the N-struts.
Page 15
ALIGNING THE TOP WING
11) Install the bottom wing onto the fuselage. Set the fuselage in your airplane stand and use a couple of large rubber bands or small weights to hold the airplane firmly in place. It's important that the fuselage not move during the remaining wing align­ment process.
It may be necessary to bend or change the angle
of the cabane struts to help align the wing. 15) At this point the top wing should be cen-
tered on the fuselage and parallel with the bottom wing. Double check the incidence of the top wing. It should be between 0º and -1º.
12) Attach your incidence meter to the bottom wing. Adjust the airplane stand and/or fuselage until the incidence meter reads 0º. See photo # 17 below.
Photo # 17
It may be necessary to use a block of wood or a
book to prop up one end of the airplane stand. If you need to prop it up, make sure it is secure. It's impor­tant that the stand doesn't move.
13) Set the top wing onto the cabane struts and the outer N-struts. Use clothespins or small clamps to hold the tops of the N-struts to the N-strut mount­ing tabs on the top wing. Pieces of masking tape will work, too.
Make sure the N-struts are located on the inside
of the strut mounting tabs. 14) Attach your incidence meter to the top wing.
Carefully adjust the cabane struts and aluminum wing mounts until the incidence meter reads ap­proximately 0º. When satisfied with the alignment, tighten the cabane strut mounting screws only tight enough so that the struts won't move easily. See
photo # 18 below.
Photo # 18
MOUNTING THE TOP WING
16) When satisfied with the alignment, use a pen to mark the locations of the four N-Strut mounting holes onto the mounting tabs on the top wing.
17) Remove the top wing and lay it upside down on your work table. Using a 1/8" drill bit, carefully drill the four holes through the N-strut mounting tabs.
Lay a towel over the wing to protect it while
you drill the holes. 18) Set the top wing back into place and realign
it. Bolt the N-struts into place using four 3mm x 10mm machine screws, four 3mm flat washers and four 3mm blind nuts. Tighten the screws firmly to draw the blind nuts into place.
The blind nuts should be installed on the inside
of the N-struts. 19) Reattach the incidence meter to the top
wing and double check the incidence. It should still be between 0º and -1º. If it is not, remove the N­struts and make small adjustments to the mounting holes in the N-strut mounting tabs until the align­ment is correct.
Wing alignment is important, but the integrity
of the joints is also important. Be careful not to en­large the N-strut mounting holes any more than necessary. If there is too much play, the wing could shift during flight.
20) With the top wing bolted to the N-struts, use a pen and mark the screw locations of the four alumi­num wing mounts onto the bottom of the wing.
21) Remove the top wing. Using a drill with a 5/64" drill bit, drill eight pilot holes into the wing at the locations you marked.
Be careful not to drill through the top of the
wing!
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22) One at a time, remove the aluminum wing mounts from the cabane struts and install them into their proper positions on the wing. Use eight 3mm x 12mm wood screws to secure them into place. See
photo # 19 below.
28) Mix a small quantity of Kwik Bond 30 Minute Epoxy. One at a time, remove the wood screws that hold the aluminum wing mounts to the top wing, apply a dab of epoxy to the screws, then reinstall and tighten them securely .
Photo # 19
23) Install the top wing and check the alignment one more time using your incidence meter. If the wing is out of alignment loosen the four machine screws that hold the cabane struts to the fuselage sides. Adjust the cabane struts until you are satisfied with the alignment and retighten the screws.
24) When you're satisfied with the alignment, remove the four screws (one at a time) and reinstall them using a couple of drops of Pacer Thread Lock. Tighten the screws firmly to secure them in place.
Do not apply any thread lock to the outer N-strut
mounting screws or to the screws that hold the alu­minum wing mounts to the cabane struts.
25) Using a 5/64" drill bit, drill four pilot holes into the fuselage sides using the predrilled holes in the cabane struts (above the elongated holes) as a guide.
The epoxy will secure the screws in place and
prevent any chance of them loosening during flight.
CONTROL SURFACE HINGING
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thin C/AKwik Bond 30 Minute EpoxyExcel Modeling KnifeScissorsWaxed PaperNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
HINGING THE AILERONS
1) Locate the precut hinge slots in the trailing edge of each half of the wing and the leading edge of each aileron.
2) Using a modeling knife, carefully remove any excess covering material from over each of the hinge slots.
3) T est fit the C/A hinges into the hinge slots in one aileron. Each hinge should be inserted far enough into the slots so that the centerline of the hinges is flush with the leading edge of the aileron. If the hinges cannot be inserted deeply enough, use a modeling knife and carefully cut the hinge slots deeper.
26) Install four 3mm x 10mm wood screws through the predrilled holes in the cabane struts and into the fuselage sides. Tighten the screws firmly.
These wood screws will lock the cabane struts
in place, preventing them from moving back and forth after you have removed the top wing.
27) Remove the top wing. T o do this properly, first remove the four machine screws from the upper N-strut mounts, then remove the four machine screws and nylon insert nuts that hold the aluminum wing mounts to the cabane struts.
16
4) With each of the hinges centered in the hinge slots, apply 3-4 drops of Kwik Bond Thin C/A to the joint where the hinges and the aileron meet. Allow a few seconds between drops for the C/A to wick into the hinges, then turn the aileron over and repeat this procedure on the other side of each hinge. Let the C/A dry for about 10 minutes before proceeding.
5) Using a pair of scissors, cut out a small piece of waxed paper. Working with one wing half for now, slide the waxed paper between the aile­ron torque rod and the trailing edge of the wing.
See photo # 20 at top right.
Page 17
Photo # 20
The waxed paper will prevent epoxy from glu-
ing the torque rod to the trailing edge of the wing. 6) Using a modeling knife, carefully remove
the covering from over the predrilled hole and the precut groove in the leading edge of the aileron.
7) Mix a small quantity of Kwik Bond 30 Minute Epoxy. Apply a thin layer of epoxy to the aileron torque rod, and pack epoxy into the predrilled hole and the precut groove in the leading edge of the aileron.
8) Slide the aileron and its hinges into the hinge slots in the trailing edge of the wing, making sure that the torque rod is firmly seated in the leading edge of the aileron. Adjust the aileron so the ends of the aileron don't rub against the wing.
9) While holding the aileron tight against the wing, rotate the aileron down about 45º. Apply 3-4 drops of Kwik Bond Thin C/A to the exposed area of each hinge. Turn the wing over and repeat for the other side of the hinges. Allow the C/A and epoxy to fully cure. Once cured, the aileron may be stiff and difficult to move. This is normal. Gently move the aileron up and down about five to ten times to free it up.
10) Repeat steps # 3 - # 9 to install the second aileron onto the other half of the wing.
HINGING THE ELEVATOR
q 13) Test fit the C/A hinges into the hinge slots in the elevator. Each hinge should be inserted far enough into the slots so that the centerline of the hinges are flush with the leading edge. If the hinges cannot be inserted deeply enough, use a modeling knife to care­fully cut the hinge slots deeper.
14) With each of the hinges centered, apply 3-4 drops of Kwik Bond Thin C/A to the joint where the hinges and the elevator meet. Allow a few seconds between drops for the C/A to wick into the hinges, then turn the elevator over and repeat this procedure on the other side. Let the C/A dry for about 10 min­utes before proceeding.
15) Slide the elevator and its hinges into the precut hinge slots in the trailing edge of the stabi­lizer. Adjust the elevator so that the elevator tips are even with the stabilizer tips.
16) While holding the elevator tight against the stabilizer, rotate the elevator down about 45º. Apply 3-4 drops of Kwik Bond Thin C/A to the exposed area of each hinge. Turn the fuselage over and re­peat for the other side of the hinges. Allow the C/A to cure for about 10 minutes. Once cured, the eleva­tor may be stiff and difficult to move. This is normal. Gently move it up and down about five to ten times to free it up.
HINGING THE RUDDER
17) Locate the precut hinge slots in the trailing edge of the vertical stabilizer and the leading edge of the rudder. A hinge slot is also located in the back edge of the fuselage, below the horizontal stabilizer.
18) Test fit the C/A hinges into the hinge slots in the rudder. Each hinge should be inserted far enough into the hinge slots so that the centerline of the hinges are flush with the leading edge. If the hinges cannot be inserted deeply enough, use a mod­eling knife to carefully cut the hinge slots deeper.
11) Locate the precut hinge slots in the trailing edge of the horizontal stabilizer and the leading edge of the elevator.
12) Using a modeling knife, carefully remove any excess covering material from over each of the hinge slots.
19) With each of the hinges centered, apply 3-4 drops of Kwik Bond Thin C/A to the joint where the hinges and the rudder meet. Allow a few seconds between drops for the C/A to wick into the hinges, then turn the rudder over and repeat this procedure on the other side. Let the C/A dry for a few minutes before proceeding.
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20) Using a modeling knife, remove the cover­ing from over the precut notch in the leading edge of the rudder. This notch allows room for the rudder to clear the elevator joiner.
21) Slide the rudder and its hinges into the pre­cut hinge slots in the trailing edge of the vertical stabilizer. Adjust the height of the rudder so it does not rub against the top of the vertical stabilizer.
Check that when you move the elevator up and
down and the rudder right and left, the notch in the rudder does not interfere with the elevator joiner.
22) While holding the rudder tight against the stabilizer, rotate the rudder to the side about 45º. Apply 3-4 drops of Kwik Bond Thin C/A to the ex­posed area of each hinge. Turn the fuselage over and repeat for the other side of the hinges. Allow the C/A to cure for about ten minutes. Once cured, the rudder may be stiff and difficult to move. This is normal. Gently move it back and forth about five to ten times to free it up.
TAIL WHEEL INSTALLATION
PARTS REQUIRED
{1} Prebent Tail Wheel Wire{1} 25mm Diameter Wheel{1} Nylon Mounting Bracket{1} Nylon Steering Arm{2} 1.5mm Wheel Collars{2} 3mm x 6mm Machine Screws{3} 3mm x 12mm Wood Screws{1} 2mm x 10mm Wood Screw
TOOLS AND SUPPLIES REQUIRED
Ernst Airplane StandMasking TapeElectric Drill1/16" & 5/64" Drill BitsPhillips Head ScrewdriverWire CuttersPen or Pencil
2) Thread one 3mm x 6mm machine screw
through the side of the nylon arm and into the wheel collar. Do not tighten the screw at this time.
3) Slide the prebent tail wheel wire up through the bottom of the nylon bracket, then slide the nylon steering arm over the wire. Make sure that the mount­ing clasp is facing the bottom of the bracket. See
photo # 21 below.
Photo # 21
4) Push the tail wheel wire into the bracket un­til the bend in the wire fits into the recessed area in the bracket, and adjust the wire so that it is parallel with the steering arm.
5) When satisfied with the alignment, tighten the 3mm x 6mm machine screw to secure the wire in place. Cut off the excess wire flush with the top of the steering arm, using a pair of wire cutters.
MOUNTING THE TAIL WHEEL BRACKET
6) T est fit the tail wheel bracket assembly onto the bottom of the fuselage. To align the bracket properly , be sure that the tail wheel wire is even with the rudder hinge line and that the nylon bracket is aligned with the centerline of the fuselage. The ny­lon clasp in the steering arm slides over the bottom of the rudder.
It will be necessary to bend the nylon steering arm
down so the clasp will engage the rudder properly. 7) While holding the mounting bracket in place,
use a pen to mark the locations of the three mounting holes onto the bottom of the fuselage.
TAIL WHEEL BRACKET ASSEMBLY
1) Insert one 1.5mm wheel collar into the top of the nylon steering arm, making sure that the threaded hole in the side of the wheel collar lines up with the predrilled hole in the side of the nylon arm.
18
8) Remove the bracket. Using a drill with a 5/64" drill bit, drill three pilot holes through the bot­tom of the fuselage at the marks you made. Set the bracket back into place and secure it to the fuselage using three 3mm x 12mm wood screws.
Page 19
9) Place a couple of pieces of masking tape be­tween the rudder and the vertical stabilizer to hold the rudder centered. Using a drill with a 1/16" drill bit, carefully drill a hole through the rudder to ac­cept the mounting screw for the nylon clasp. Use the predrilled holes in the clasp as a guide.
It will be necessary to bend the nylon steering arm
down so the clasp will engage the rudder properly.
10) To secure the steering arm to the rudder , use one 2mm x 10mm wood screw threaded into the pre­drilled hole in one side of the clasp, through the rudder, and into the predrilled hole in the opposite side of the clasp. Tighten the screw , but do not over­tighten it. Y ou don't want to crush the wood or break the clasp. See photo # 22 below.
Photo # 22
INSTALLING THE TAIL WHEEL
MAIN GEAR INSTALLATION
PARTS REQUIRED
{2} Wire Spoke Main Gear Wheels{1} Precovered Landing Gear Wing{1} Wire Landing Gear Strut{2} Nylon Landing Gear Strap - Small Slot{2} Nylon Landing Gear Strap - Large Slot{8} 3mm x 12mm Wood Screws{2} Nylon Wheel Spacers{2} Wheel Collars w/3mm x 6mm Set Screws{2} Nylon Landing Gear Wing Mounts{2} 3mm x 6mm Machine Screws{4} 2mm x 5mm Wood Screws{1} Precovered Square Stock
TOOLS AND SUPPLIES REQUIRED
Kwik Bond 5 Minute EpoxyRobart Incidence MeterExcel Modeling KnifeErnst Airplane StandElectric Drill1/16" & 5/64" Drill BitsStraight Edge RulerPhillips Head ScrewdriverPen or PencilPaper TowelsRubbing AlcoholNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
11) Slide the 25mm diameter tail wheel onto the
tail wheel wire. Thread one 3mm x 6mm machine screw into the wheel collar, then slide the wheel col­lar up against the tail wheel.
12) Slide the wheel collar on enough so it is up against the tail wheel, but not so tight that the tail wheel won't turn. The tail wheel should rotate with­out binding. When you are satisfied with the alignment, securely tighten the machine screw using a phillips screwdriver. See photo # 23 below.
Photo # 23
INSTALLING THE GEAR BRACKET
1) Place the wire landing gear bracket onto the bottom of the fuselage. To align the bracket prop­erly, the larger diameter wire should be toward the front of the fuselage and the smaller diameter rear wire should be positioned 11/16" in front of the wing saddle.
2) While holding the gear bracket in position, place the two nylon small-slot landing gear straps over the rear wire and the two large-slot landing gear straps over the front wire. Adjust them so that the center of each strap is 1/2" in from the fuselage sides.
3) Using a pen, mark the locations of the eight mounting holes onto the bottom of the fuselage.
4) Remove the nylon straps and the gear bracket. Using a 5/64" drill bit, drill pilot holes through the fuselage at the eight locations you marked.
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Page 20
5) Set the gear bracket back into place and re­align it. Install the four nylon straps using eight 3mm x 12mm wood screws. Tighten the screws firmly to secure the gear bracket into place. See
photo # 24 below.
Photo # 24
INSTALLING THE GEAR WING
6) Using a modeling knife, remove the cover­ing from over the precut slot in the top of the gear wing. Also remove the covering from over both ends of the slot. See photo # 25 below.
Photo # 25
10) Remove the gear wing from the wire. Us­ing a drill with a 1/16" drill bit, drill four pilot holes into the ends of the gear wing at the four locations you marked previously.
11) Place the gear wing back onto the wire and realign it. Secure the two nylon mounts to the ends of the gear wing using four 2mm x 5mm wood screws. See photo # 26 below.
Photo # 26
12) Partially thread two 3mm x 6mm machine screws into the bottoms of the two nylon gear wing mounts.
13) Using your incidence meter, carefully set the incidence of the gear wing to 0º or -1º. When satis­fied with the alignment, tighten the machine screws in the nylon mounts to secure the gear wing into po­sition.
7) Set the gear wing onto the wire between the two landing gear axles, making sure that the slot in the gear wing faces up.
8) Slide one nylon gear wing mount onto each landing gear axle and push them up against the ends of the gear wing.
Make sure the flat sides of both nylon mounts
are up against the edges of the gear wing and that the holes for the set screws are facing the bottom of the gear wing.
9) Adjust the nylon mounts so that the two mounting holes are parallel to the bottom of the wing. While holding the mounts in place, use a pen and mark the locations of the mounting holes onto the edges of the gear wing.
14) Mix a small amount of Kwik Bond 5 Minute Epoxy . Apply a thin layer of epoxy to the precovered square stock and press the stock into the slot in the top of the gear wing. Remove any excess epoxy us­ing a paper towel and rubbing alcohol and allow the epoxy to cure before proceeding.
INSTALLING THE MAIN GEAR WHEELS
15) Push one nylon spacer onto each of the two landing gear axles. Push the spacers up against the nylon gear wing mounts.
16) Slide one wheel onto each axle. Push the wheels up against the nylon spacers, then slide one wheel collar onto each axle and push them up against the wheels. Adjust the depths of the wheel collars until the wheels spin without binding, then tighten the machine screws using a phillips screwdriver.
You may wish to apply a thin layer of grease to
the axles to prevent the wheels from squeaking.
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ENGINE INSTALLATION
PARTS REQUIRED
{2} Nylon Motor Mount Beams{4} 3mm x 20mm Machine Screws{4} 3mm x 25mm Machine Screws{4} 3mm Nylon Insert Nuts{4} 3mm Blind Nuts{12} 3mm Flat Washers{1} 1.5mm x 350mm Wire w/Z-Bend
TOOLS AND SUPPLIES REQUIRED
Ernst Airplane StandElectric Drill1/8", 5/32" and 1/4" Drill BitsStraight Edge RulerPhillips Head ScrewdriverNeedle Nose PliersPen or Pencil
4) Install the engine onto the mounting beams
using four 3mm x 25mm machine screws, eight 3mm flat washers and four 3mm lock nuts. Tighten the screws and nuts completely to hold the engine firmly in place.
ALIGNING THE MOTOR MOUNT
Whether you are using a two or a four cycle
engine, the engine will be mounted at an angle (as described below) so that the muffler assembly will clear the side of the fuselage.
5) Using a ruler and a pen, draw a vertical centerline on the firewall.
6) Using a ruler and a pen, measure up from the bottom of the firewall 2-1/16" and draw a horizontal line at this point.
MOUNTING THE ENGINE TO THE
MOTOR MOUNT BEAMS
1) Using a clamp or a vise, align the two nylon motor mount beams and clamp them together. The beam halves are universal and the webbing should face the outside edges. It's also important that the back edges of both beams be perfectly even. See
photo # 27 below.
Photo # 27
2) Using a ruler and a pen, mark the locations of the four engine mounting holes onto the two beams. So that the engine will line up properly with the front of the cowl (when it is installed later), it is important that the front edge of the engine's drive washer be 4-1/4" in front of the rear edge of the mounting beams.
The point at which these two lines intersect is
the crankshaft centerline point. 7) Using a ruler and pen, measure up 5/8" from
the horizontal line (at the right side of the fuselage) and place a mark. Measure down 5/8" from the hori­zontal line (at the left side of the fuselage) and place a mark. Draw a straight line connecting these two marks. See photo # 28 below.
Photo # 28
8) Using a ruler and pen, draw a line through the crankshaft centerline point, perpendicular to the angled line you just drew. See photo # 29 below.
Photo # 29
3) When satisfied with the alignment, remove the beams from the clamp. Using a drill with a 1/8" drill bit, drill four holes through the mounting beams at the marks you made.
Make sure that you drill the holes straight down
through the beams and not at an angle.
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9) Using a ruler and a pen, measure up 3/16" from the angled horizontal line you drew and draw a line parallel to it.
14) Hold the motor mount/engine assembly up to the firewall (the motor is mounted upright). Double check that the four predrilled holes in the motor mount beams line up with the four intersecting lines.
10) Using a ruler and a pen, measure 1/8" to the right of the perpendicular line you drew and draw a line parallel to it. See photo # 30 below.
Photo # 30
11) Using a ruler and a pen, measure 15/32" up from the second angled horizontal line and draw a line parallel to it. Now measure down 1-7/16" from the second angled horizontal line and draw a second line parallel to it.
12) Using a ruler, measure the width between the predrilled mounting holes in the backs of the two motor mount beams. See photo # 31 below.
Notice that the motor assembly is offset from
the centerline to compensate for the built-in right and down thrust in the firewall. Offsetting the engine ensures that the crankshaft lines up with the cowl.
MOUNTING THE ENGINE
TO THE FIREWALL
15) When satisfied with the alignment, use a drill with a 5/32" drill bit and drill four holes through the firewall for the motor mount screws.
16) Hold the motor mount/engine assembly up to the firewall and align it with the mounting holes. Using a pencil, mark the location of the throttle push­rod exit hole onto the firewall.
If you are using a 2 cycle engine, the throttle
pushrod exit hole should be about 1/4" above the top motor mount hole. If you are using a 4 cycle engine, the throttle pushrod exit hole should be right behind the throttle arm.
Photo # 31
13) Divide the measurement found in step # 12 in half. Using a ruler and a pen, measure this re­sulting distance and draw one line to the right and one to the left of the second angled vertical line.
See photo # 32 below.
Photo # 32
17) Using a drill with a 1/4" drill bit, drill a hole through the firewall for the throttle pushrod wire at the mark you made.
18) Attach the Z-bend in the 1.5mm x 350mm throttle pushrod wire into the outermost hole in the engine's throttle arm.
19) Slide the plain end of the pushrod wire through the pushrod exit hole and install the motor mount/engine assembly using four 3mm x 20mm machine screws, four 3mm flat washers and four 3mm blind nuts. Tighten the screws firmly to draw the blind nuts into place. See photo # 33 below.
Photo # 33
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FUEL TANK
5) Using the Magnum Tubing Bender, carefully bend the longer of the two tubes up at a 45º angle.
PARTS REQUIRED
{1} Molded Fuel Tank{1} Rubber Stopper{1} 20mm Diameter Front Plate{1} 17mm Diameter Back Plate{1} 3mm x 18mm Machine Screw{1} Weighted Fuel Pick-Up{3} Aluminum Tubes{1} Silicon Fuel Tubing
TOOLS AND SUPPLIES REQUIRED
Wilhold Silicon SealantMagnum Tubing BenderStraight Edge RulerPhillips Head ScrewdriverScissors220 Grit Sandpaper w/Sanding Block
STOPPER ASSEMBLY
1) The fuel tank assembly incudes 3 different length aluminum tubes. Discard the shortest of the three tubes. It will not be used.
When the stopper assembly is installed in the
fuel tank, the top of the vent tube should rest inside the bubble in the top of the tank.
6) Secure one end of the silicon fuel tubing onto the end of the weighted fuel pick-up.
7) Slide the silicon fuel tubing, with the fuel pick-up attached, onto the end of the aluminum fuel pick-up tube (straight tube). While holding the alu­minum tube in place, adjust the length of the silicon tubing until the fuel pick-up is 4-3/8" back from the rear of the stopper assembly. See photo # 35 below .
Photo # 35
2) Using 220 grit sandpaper, carefully smooth each end of the two remaining tubes. This will pre­vent the fuel tubing from being accidentally cut when it is installed later.
3) Push the two aluminum tubes through the rubber stopper. Slide the 20mm diameter front plate over the tubes at the front of the stopper and slide the 17mm diameter back plate over the tubes at the rear of the stopper.
4) Using a ruler, measure the distance that the two aluminum tubes protrude from the front of the stopper assembly. This distance should be 3/8". If it is not, adjust the tubes by pushing them forward or backward until you are satisfied with the alignment.
See photo # 34 below.
Photo # 34
8) Push the 3mm x 18mm machine screw through the center hole in the front of the stopper assembly and partially thread it into the metal stop­per back plate. See photo # 36 below.
Photo # 36
INSTALLING THE STOPPER ASSEMBLY
9) Carefully push the stopper assembly into the molded hole in the front of the fuel tank. Gently ro­tate the stopper assembly until the aluminum vent tube rests inside the molded bubble in the top of the fuel tank.
If you have trouble seeing the vent tube, hold
the fuel tank assembly up to a bright light. This will illuminate the inside of the tank.
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10) When satisfied with the alignment of the stopper assembly, tighten the machine screw using a phillips screwdriver until the rubber stopper expands and seals the fuel tank opening. Do not overtighten the screw. This could cause the front of the fuel tank to split.
INSTALLING THE FUEL TANK
11) Carefully apply a generous bead of silicon sealant onto the front of the fuel tank.
12) Slide the fuel tank into place, making sure that the stopper assembly fits into the predrilled hole in the firewall. When aligned properly, the front of the tank should be pushed firmly against the back of the firewall and the bottom of the tank should rest on the fuel tank support floor.
When installing the fuel tank, make sure that
the molded bubble in the top of the tank faces the top of the fuselage.
the two preinstalled balsa support rails glued to the fuselage sides. Position the tray so that the front edge of the tray is 1-1/2" behind the forward bulkhead.
See photo # 37 below.
Photo # 37
2) When satisfied with the fit, use a pencil and mark the location of the servo tray . Remove the tray and apply a thick bead of Kwik Bond Thick C/A to the top of the two balsa support rails only where the servo tray will be glued.
13) Using a pair of scissors, cut out large pieces of Dubro Foam Rubber. With the fuel tank aligned, wedge the pieces of foam rubber between the fuel tank and the fuselage to secure the fuel tank into position.
Make sure that the foam rubber does not inter-
fere with the throttle pushrod wire.
SERVO INSTALLATION
PARTS REQUIRED
{1} Aileron Servo Tray (W-9C){1} Rear Aileron Servo Tray Block (W-9B){1} Front Aileron Servo Tray Block (W-9A){1} Fuselage Servo Tray (D-38)
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thick C/AExcel Modeling KnifeErnst Airplane StandElectric Drill1/16" Drill BitStraight Edge RulerPhillips Head ScrewdriverPen or Pencil
3) Set the servo tray back into place and realign
it. Hold the servo tray firmly in place until the C/A fully cures.
INSTALLING THE AILERON SERVO TRAY
4) Position the two aileron servo tray mount­ing blocks onto the bottom wing. Block W-9A is for the front and block W-9B is for the back. Both blocks should be centered from side-to-side and their inside edges should be even with the edges of the servo opening. See photo # 38 below.
Photo # 38
Notice that one side of block W-9B is cut at an
angle. The taller side of the block should be toward the trailing edge of the wing.
INSTALLING THE FUSELAGE SERVO TRAY
1) Test fit the fuselage servo tray (D-38) onto
24
5) When satisfied with the alignment, hold both mounting blocks in place and trace around them us­ing a pen.
Page 25
6) Remove both of the blocks. Using a model­ing knife, carefully remove the covering material from inside the two outlines you drew.
7) Apply a generous amount of Kwik Bond Thick C/A onto the bottoms of each mounting block. Set the blocks back into place and realign them. Hold the blocks firmly in place until the C/A fully cures.
8) Set the aileron servo tray (W-9C) on top of the two mounting blocks. To align the servo tray properly, be sure that the cutout in the tray is cen­tered over the cutout in the wing.
9) Remove the servo tray and apply a thick bead of Kwik Bond Thick C/A onto the tops of the two mounting blocks. Set the servo tray back into place and realign it. Hold the tray in place until the C/A fully cures.
INSTALLING THE SERVOS
10) Locate the four servos you intend to use for the elevator, rudder, throttle and aileron controls.
11) Carefully install the four rubber grommets and four brass collets onto each of the servo mount­ing lugs.
For proper vibration reduction, the brass collets
should be inserted into the rubber grommets with the flanges facing the bottom of the servo mounting lugs.
See figure # 7 below.
Photo # 39
13) Using a drill with a 1/16" drill bit, drill twelve pilot holes through the servo tray , one for each of the servo mounting screws (included with your radio system). Using a phillips screwdriver, install and tighten the mounting screws to hold the servos in place.
14) Position the remaining servo into the aile­ron servo tray, noting the position of the servo output shaft. It should face the trailing edge of the wing.
When installing the servo, make sure that you
run the servo wire out between the servo tray and the wing.
15) Using a drill with a 1/16" drill bit, drill four pilot holes through the servo tray, one for each of the mounting screws (included with your radio system). Using a phillips screwdriver, install and tighten the mounting screws to hold the servo in place.
Figure # 7
12) Position three servos into the fuselage servo tray, making sure that you run the servo wires below the tray and out toward the front of the fuselage.
Pay close attention to the positions of the servo
output shafts. They should face the directions shown in the photo. See photo # 39 at top right.
THROTTLE PUSHROD
PARTS REQUIRED
{1} Adjustable Servo Connector Assembly
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thin C/AErnst Airplane StandElectric Drill5/64" Drill BitPhillips Head ScrewdriverWire Cutters
INSTALLING THE SERVO CONNECTOR
1) Locate one plastic "4-poi nt" servo horn that came with your servo. Each of the arms should have at least four holes in them.
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2) Install one adjustable servo connector through the third hole out from the center of one of the arms. When you thread on the nut, don't tighten it completely. You don't want the connector loose, but you do want it to be able to rotate without bind­ing too much. See figure # 8 below .
Figure # 8
You will have to enlarge the hole in the servo
arm using a 5/64" drill bit so that the servo connec­tor will fit through without binding.
3) Apply a drop or two of Kwik Bond Thin C/A to the connector nut and allow the glue to fully cure. This will prevent the connector from loosening dur­ing flight.
4) Per your radio system guide, plug the battery into the switch, the switch into the receiver, and the throttle servo lead into the proper slot in the receiver. Turn on the radio system.
5) Check to ensure that the throttle servo output shaft is moving in the correct direction. When the throttle control stick on the transmitter is moved for­ward, from idle to full throttle, the servo output shaft should rotate counterclockwise.
If the servo output shaft does not rotate coun-
terclockwise, flip the servo reversing switch on your transmitter to change the direction. Please refer to your radio system guide for more information on this function.
6) Position the throttle stick and the throttle trim lever on your transmitter at their lowest positions. Slide the adjustable servo connector/servo horn as­sembly over the plain end of the throttle pushrod wire.
output shaft. The servo connector should be point­ing toward the rudder servo. See photo # 40 below.
Photo # 40
8) With the carburetor barrel fully closed, use a phillips screwdriver to tighten the machine screw in the adjustable servo connector.
9) Using a phillips screwdriver, install and tighten the servo arm retaining screw , provided with your servo, to secure the servo horn into place.
ADJUSTING THE THROTTLE LINKAGE
10) When your throttle linkage is adjusted prop­erly , the carburetor barrel should be fully closed when the throttle stick and the throttle trim lever are at their lowest positions. Moving the throttle trim lever up should open the carburetor barrel about 25%. Mov­ing the throttle stick all the way forward should open the throttle barrel completely .
All of these movements should be done without
any binding in the linkage.
11) Sometimes the servo will bind at the fully closed and/or the fully opened throttle positions. If this happens, and your radio is equipped with End Point Adjustments (EPA), make those adjustments using the transmitter (see your radio guide for fur­ther details). If your radio does not have this feature you can still adjust the linkage manually. For more travel, move the adjustable servo connector to a hole farther out from the center of the servo horn. For less travel, move the servo connector to a hole closer to the center of the servo horn. Ideally, you don't want the servo to bind while at idle or full throttle.
7) Push the carburetor barrel fully closed us­ing your fingers. Angle the servo horn back about 45º from center and attach the servo horn to the servo
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RUDDER PUSHROD
PARTS REQUIRED
{1} Nylon Pushrod Tube{1} 2mm x 90mm Threaded Wire w/L-Bend{1} 2mm x 100mm Threaded Wire{1} Nylon Clevis{1} Nylon Snap Keeper{1} Nylon Control Horn w/Backplate{2} 2mm x 15mm Machine Screws{1} 40mm Clear Tubing
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thin C/AExcel Modeling KnifeErnst Airplane StandMasking TapeElectric Drill5/64" Drill BitStraight Edge RulerPhillips Head ScrewdriverWire CuttersNeedle Nose PliersScissors
4) Place the nylon backplate onto the machine
screws, aligning the two holes in the backplate with the two screws. Using a phillips screwdriver, evenly tighten both machine screws to draw the backplate into place. Be careful not to overtighten the screws. You don't want to crush the wood.
INSTALLING THE PUSHROD
5) Slide the plain end of one 2mm x 100mm threaded wire into one end of the nylon pushrod tube, up to the wire's threads.
6) Thread the wire into the nylon tube until 5/8" of wire extends past the end of the tube. Apply a couple of drops of Kwik Bond Thin C/A to the wire where it exits the nylon tube. Allow about 30 sec­onds for the glue to penetrate, then apply a couple more drops. Allow the C/A to fully cure before pro­ceeding. See figure # 10 below .
Figure # 10
INSTALLING THE CONTROL HORN
1) Position the nylon control horn on the lower, right side of the rudder. To properly align the con­trol horn, be sure it is perpendicular to the rudder hinge line and that its centerline is 3/4" below the horizontal stabilizer, at the hinge line. The clevis attachment holes should be directly over the hinge line. See figure # 9 below.
Figure # 9
2) When satisfied with the alignment, use a drill with a 5/64" drill bit, and the control horn as a guide, and drill the two mounting holes through the rudder.
It is important to glue the threaded wire into the
nylon pushrod tube. This will prevent the wire from turning or pulling out during flight.
7) After the C/A has fully cured, pull on the threaded wire to check that it is glued firmly in place.
8) Using a modeling knife, carefully cut off both nylon pushrod housings (inside the servo compart­ment) 1-5/8" in front of the rear bulkhead.
9) Using a pair of scissors, cut one 1/4" long piece out of the 40mm clear tubing. Slide the piece of tubing onto the base of one nylon clevis.
10) Thread the nylon clevis 3/8" onto the threaded end of the pushrod assembly. Hold the wire with a pair of pliers to keep it from turning.
3) Set the control horn back into place and re­align it. Push two 2mm x 15mm machine screws into the base of the control horn and through the rudder.
11) Using a modeling knife, remove the cover­ing from over the rudder pushrod exit hole in the back of the fuselage. The hole is located on the right side of the fuselage, 3" in front of the rudder hinge line and 5/8" down from the horizontal stabilizer.
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12) Slide the plain end of the rudder pushrod assembly into the nylon pushrod housing (from the back) until the clevis lines up with the control horn.
13) Using needle nose pliers, carefully make a bend in the pushrod assembly so that the clevis lines up with the control horn.
14) Snap the clevis into the outermost hole in the control horn and slide the piece of clear tubing up over the clevis to secure it in place. See
photo # 41 below.
Photo # 41
20) Plug the battery into the switch and the switch into the receiver. Plug the rudder servo lead into the proper slot in the receiver and turn on the radio system. Make sure the rudder control stick and the rudder trim lever are centered.
21) Thread the pushrod wire (with the servo arm attached) into the end of the nylon pushrod tube. Continue to thread the wire in until the servo horn lines up with the servo output shaft. Attach the servo horn to the output shaft, making sure that the servo horn is centered and points toward the fuselage side.
See photo # 42 below.
Photo # 42
15) Use a couple of pieces of masking tape, taped between the vertical stabilizer and the rudder, to hold the rudder centered.
16) Locate a plastic "4-point" servo horn that came with your servo. Each of the arms should have at least four holes in it. Using a pair of wire cutters, remove all but one of the arms.
17) Using a 5/64" drill bit, enlarge the third hole out from the center of the arm.
18) Insert the L-bend in the 2mm x 90mm wire down through the hole. Place a nylon snap keeper over the wire to hold it securely to the servo arm.
See figure # 11 below.
Figure # 11
19) Using a modeling knife, cut off the nylon pushrod tube 5/16" in front of the pushrod housing.
22) Using a phillips screwdriver, install and tighten the servo arm retaining screw , provided with your servo, to secure the servo horn in place.
23) Remove the masking tape from the rudder and double check that the rudder and the rudder servo are both still centered.
ADJUSTING THE RUDDER PUSHROD
24) With your radio system plugged in and turned on, check the direction the rudder control sur­face moves and the amount of deflection. T o do this push right on the rudder control stick. The rudder should move right. If it does not, flip the servo re­versing switch on your transmitter to change the direction. (Refer to your radio guide for more infor­mation on this function.)
25) Push right completely on the rudder control stick. While holding the control stick fully right, use a ruler and measure the amount the trailing edge of the rudder moves right. This measurement should be 3/4".
26) If the control surface deflection is more or less than 3/4" it must be changed. If your radio is
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equipped with End Point Adjustments (EPA), make those adjustments using the transmitter . (Refer to your radio guide for further details.) If your radio does not have this feature, you can still make the adjustments to the pushrod manually.
control horn, it should be angled in about 1/16" to­ward the fuselage side and its centerline should be 1-1/2" from the fuselage side, at the hinge line. The clevis attachment holes should be directly over the hinge line. See figure # 13 below.
27) If the rudder is moving more than 3/4", move the clevis in one hole toward the center of the servo horn to decrease the control deflection. If the rudder is moving less than 3/4", move the clevis one hole closer to the base of the control horn to increase the control deflection. When adjusted properly, the rudder should move 3/4" both right and left. See
figure # 12 below.
Figure # 12
ELEVATOR PUSHROD
PARTS REQUIRED
{1} Nylon Pushrod Tube{1} 2mm x 90mm Threaded Wire w/L-Bend{1} 2mm x 100mm Threaded Wire{1} Nylon Clevis{1} Nylon Snap Keeper{1} Nylon Control Horn w/Backplate{2} 2mm x 15mm Machine Screws{1} 40mm Clear Tubing
TOOLS AND SUPPLIES REQUIRED
Figure # 13
2) When satisfied with the alignment, use a drill with a 5/64" drill bit, and the control horn as a guide, and drill the two mounting holes through the elevator.
3) Set the control horn back into place and re­align it. Push two 2mm x 15mm machine screws into the base of the control horn and through the elevator.
4) Place the nylon backplate onto the machine screws, aligning the two holes in the backplate with the two screws. Using a phillips screwdriver, evenly tighten both machine screws to draw the backplate into place. Be careful not to overtighten the screws. You don't want to crush the wood.
INSTALLING THE PUSHROD
5) Slide the plain end of one 2mm x 100mm threaded wire into one end of the nylon pushrod tube, up to the wire's threads.
Kwik Bond Thin C/AExcel Modeling KnifeErnst Airplane StandMasking TapeElectric Drill5/64" Drill BitStraight Edge RulerPhillips Head ScrewdriverWire CuttersNeedle Nose PliersScissors
INSTALLING THE CONTROL HORN
1) Position the nylon control horn on the bot­tom left side of the elevator. To properly align the
6) Thread the wire into the nylon tube until 5/8" of wire extends past the end of the tube. Apply a couple of drops of Kwik Bond Thin C/A to the wire where it exits the nylon tube. Allow about 30 sec­onds for the glue to penetrate, then apply a couple more drops. Allow the C/A to fully cure before pro­ceeding. See figure # 14 below .
Figure # 14
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It is important to glue the threaded wire into the
nylon pushrod tube. This will prevent the wire from turning or pulling out during flight.
7) After the C/A has fully cured, pull on the threaded wire to check that it is glued firmly in place.
8) Using a pair of scissors, cut one 1/4" long piece out of the remaining length of clear tubing. Slide the piece of tubing onto the base of one nylon clevis.
9) Thread the nylon clevis 3/8" onto the threaded end of the pushrod assembly. Hold the wire with a pair of pliers to keep it from turning.
16) Insert the L-bend in the 2mm x 90mm wire down through the hole. Place a nylon snap keeper over the wire to hold it securely to the servo arm.
See figure # 15 below.
Figure # 15
17) Using a modeling knife, cut off the nylon pushrod tube 5/16" in front of the pushrod housing.
10) Using a modeling knife, remove the cover­ing from over the elevator pushrod exit hole in the back of the fuselage. The hole is located on the left side of the fuselage, 3" in front of the rudder hinge line and 5/8" down from the horizontal stabilizer.
11) Slide the plain end of the elevator pushrod assembly into the nylon pushrod housing (from the back) until the clevis lines up with the control horn.
12) Snap the clevis into the third hole out from the base of the control horn and slide the piece of clear tubing up over the clevis to secure it in place. See photo # 43 below.
Photo # 43
18) Plug the battery into the switch and the switch into the receiver. Plug the elevator servo lead into the proper slot in the receiver and turn on the radio system. Make sure the elevator control stick and the elevator trim lever are centered.
19) Thread the pushrod wire (with the servo arm attached) into the end of the nylon pushrod tube. Continue to thread the wire in until the servo horn lines up with the servo output shaft. Attach the servo horn to the output shaft, making sure that the servo horn is centered and points toward the fuselage side.
20) Using a phillips screwdriver, install and tighten the servo arm retaining screw , provided with your servo, to secure the servo horn in place.
21) Remove the masking tape from the elevator and double check that the elevator and the elevator servo are still centered.
ADJUSTING THE ELEVATOR PUSHROD
13) Use a couple of pieces of masking tape, taped between the horizontal stabilizer and the el­evator, to hold the elevator centered.
14) Locate a plastic "4-point" servo horn that came with your servo. Each of the arms should have at least four holes in it. Using a pair of wire cutters, remove all but one of the arms.
15) Using a 5/64" drill bit, enlarge the third hole out from the center of the arm.
30
22) With your radio system plugged in and turned on, check the direction the elevator control surface moves and the amount of deflection. T o do this pull back on the elevator control stick. The el­evator should move up. If it does not, flip the servo reversing switch on your transmitter to change the direction. (Refer to your radio guide for more in­formation on this function.)
23) Pull back completely on the elevator con­trol stick. While holding the control stick fully back, use a ruler and measure the amount the trailing edge of the elevator moves up. This measurement should be 3/8".
Page 31
24) If the control surface deflection is more or less than 3/8" it must be changed. If your radio is equipped with End Point Adjustments (EPA), make those adjustments using the transmitter . (Refer to your radio guide for further details.) If your radio does not have this feature, you can still make the adjustments to the pushrod manually.
25) If the elevator is moving more than 3/8", move the clevis in one hole toward the center of the servo horn to decrease the control deflection. If the elevator is moving less than 3/8", move the clevis one hole closer to the base of the control horn to increase the control deflection. When adjusted properly, the elevator should move 3/8" both up and down. See
figure # 16 below.
Figure # 16
their final positions. They should both be 1" above the top surface of the wing. See figure # 17 below.
Figure # 17
2) Locate a plastic "4-point" servo horn that came with your servo. Each of the arms should have at least four holes in it. Using a pair of wire cutters, remove one of the arms.
3) Using a 5/64" drill bit, enlarge the third hole out from the center of the arm to the right of the one you cut off. Do the same in the arm directly opposite the first one.
4) Insert the L-bends in the two 2mm x 50mm aileron pushrod wires up through the two holes. Place a nylon snap keeper over each wire to hold them se­curely to the servo arms.
AILERON PUSHRODS
PARTS REQUIRED
{2} 2mm x 50mm Threaded Wires w/L-Bends{2} Nylon Clevises{2} Nylon Snap Keepers{1} 40mm Clear Tubing
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thin C/AExcel Modeling KnifeErnst Airplane StandMasking TapeElectric Drill5/64" Drill BitStraight Edge RulerPhillips Head ScrewdriverWire CuttersNeedle Nose PliersScissors
INSTALLING THE PUSHRODS
1) Two nylon adjustable control horns have been partially threaded onto the two aileron torque rods. Carefully thread the control horns into
5) Using a pair of scissors, cut two 1/4" long pieces from the remaining length of clear tubing. Slide the tubing onto the base of two nylon clevises.
6) Plug the battery into the switch and the switch into the receiver. Plug the aileron servo lead into the proper slot in the receiver and turn on the radio sys­tem. Make sure the aileron control stick and aileron trim lever are centered.
7) Attach the servo horn onto the aileron servo output shaft, making sure that the servo horn is centered.
8) Use a couple of pieces of masking tape, taped between the wing tips and the ailerons, to hold the ailerons centered.
9) Thread the two nylon clevises onto the threaded ends of the two aileron pushrod wires until the pin in each clevis lines up with the hole in each adjustable control horn. Use a pair of pliers to hold the wires and keep them from turning.
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10) Snap the clevises into the adjustable con­trol horns and carefully slide the pieces of clear tubing up over the clevises to secure them in place. See
photo # 44 below.
Photo # 44
11) Using a phillips screwdriver, install and tighten the servo arm retaining screw, provided with your servo, to secure the servo horn into place.
12) Remove the masking tape from both ailerons and double check that both ailerons, and the aileron servo, are still centered.
ADJUSTING THE AILERON PUSHRODS
13) With your radio system plugged in and turned on, check the direction the aileron control sur­faces move and amount of deflection. To do this, push right on the aileron control stick. The aileron on the right side of the wing should move up and the aileron on the left side should move down (looking at the wing right side up, from the rear). If they do not, flip the servo reversing switch on your transmit­ter to change the direction. (Refer to your radio guide for more information on this function.)
14) Push right completely on the aileron con­trol stick. While holding the control stick fully right, use a ruler and measure the amount the trailing edge of each aileron moves. This measurement should be 3/8".
15) If the control surface deflection is more or less than 3/8" it must be changed. If your radio is equipped with End Point Adjustments (EPA), make those adjustments using the transmitter. (Refer to your radio guide for further details.) If your radio does not have this feature, you can still make the adjustments to the pushrods manually.
16) If the ailerons are moving more than 3/8", move both snap keepers in one hole toward the cen­ter of the servo horn to decrease the control deflection. If the ailerons are moving less than 3/8", thread both adjustable control horns down about 1/4". This will increase the control deflection. When adjusted prop­erly, both ailerons should move 3/8" both up and down. See figure # 18 below.
Figure # 18
WINDSCREEN
PARTS REQUIRED
{1} Molded Clear Windscreen
TOOLS AND SUPPLIES REQUIRED
Formula-560 Canopy GlueMasking TapeStraight Edge RulerScissorsPen or Pencil220 Grit Sandpaper w/Sanding Block
TRIMMING THE WINDSCREEN
1) Using a pair of scissors, carefully cut out the wind screen along only the lower scribe line for now .
2) Test fit the windscreen to the fuselage. The front of the windscreen should be approximately 1/4" in front of the cockpit cutout and the windscreen should be centered on the fuselage.
3) When satisfied with the alignment, remove the windscreen and use scissors to cut out the windscreen along the upper scribe line.
3) Using 220 grit sandpaper with a sanding block, carefully sand the edges of the windscreen smooth.
MOUNTING THE WINDSCREEN
4) Apply a thin bead of Formula-560 Canopy Glue to the base of the windscreen. Set the wind screen back into place and realign it. Use a couple of
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pieces of masking tape to hold it securely in place until the glue fully cures. See photo # 45 below.
Photo # 45
5) Test fit the two machine gun halves together . The edges of each half should be even with each other and there should be little or no gaps between the two halves. Make any adjustments necessary , using 220 grit sandpaper with a sanding block.
6) When satisfied with the alignment, mix a small quantity of Kwik Bond 5 Minute Epoxy and glue the two halves together. Use pieces of masking tape to hold the two halves together until the epoxy fully cures.
MACHINE GUN
PARTS REQUIRED
{1} Molded Plastic Machine Gun
TOOLS AND SUPPLIES REQUIRED
Kwik Bond 5 Minute EpoxyFormula-560 Canopy GlueMasking TapeStraight Edge RulerScissorsPen or Pencil220 Grit Sandpaper w/Sanding BlockRubbing AlcoholPaper TowelsNHP Epoxy Mixing SticksNHP Epoxy Mixing Cups
JOINING THE MACHINE GUN HALVES
1) Using a pair of scissors, carefully cut apart the two machine gun halves. Trim each half, leaving about a 1/16" lip around the perimeter of both.
2) Using a pair of scissors, cut out two pieces of heavy cardstock (yellow file folder works well) slightly larger than the machine gun halves.
3) Mix a small quantity of Kwik Bond 5 Minute Epoxy. Without distorting the shape of the machine gun halves, glue one piece of cardstock to each ma­chine gun half. Use enough epoxy so it forms a small fillet on the inside edges. This will strengthen the joints.
4) After the epoxy has fully cured, use a pair of scissors to trim the cardstock flush with the outer edges of the machine gun halves.
7) After the epoxy has cured, remove the mask­ing tape and sand the seam smooth using 220 grit sandpaper. See photo # 46 below.
Photo # 46
8) Lightly sand the entire machine gun using 220 grit sandpaper, and wipe away any dust. Paint the machine gun flat black and allow the paint to dry completely before proceeding.
MOUNTING THE MACHINE GUN
9) T est fit the machine gun to the top of the fu­selage. The back edge of the machine gun should be about 1" in front of the wind screen and the machine gun should be centered on the fuselage.
10) Using a pair of scissors, carefully trim the base of the machine gun to match the contour of the fuselage. Work slowly, checking the fit often.
11) When satisfied with the fit, apply a gener­ous bead of Formula-560 Canopy Glue around the base of the machine gun. Set the machine gun back into place and realign it. Use pieces of masking tape to hold the machine gun securely in place until the glue fully cures.
12) After the glue has fully cured, remove the masking tape.
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COWLING
PARTS REQUIRED
{1} Molded Fiberglass Cowl{6} 3mm x 6mm Wood Screws
TOOLS AND SUPPLIES REQUIRED
Kwik Bond Thin C/AErnst Airplane StandMasking TapeElectric Drill5/64", 1/8", 5/16" and 3/8" Drill BitsDremel Tool w/Assorted BitsStraight Edge RulerPhillips Head ScrewdriverPen or PencilScissors220 Grit Sandpaper w/Sanding Block
ALIGNING THE COWL
1) Remove the muffler from your engine and plug any openings in the engine using small pieces of paper towel. This will prevent debris from getting into the engine.
top screw should be centered down the middle of the cowl and the two holes on each side of the cowl should be spaced equally between the top and bottom.
5) All five cowl mounting screws will be lo­cated 1/4" behind the front of the firewall. Remove the cowl and measure forward from the marks you made on the fuselage sides in step # 3.
6) Using a ruler and pencil, measure forward from the back edge of the cowl the distance you found in step # 5. Place five marks on the cowl intersecting the marks you made on the cowl in step # 4.
7) Slide the cowling over the engine and re­align it around the crankshaft and with the marks you made previously on the fuselage. Use several pieces of masking tape to hold the cowl securely in place. See photo # 48 below.
Photo # 48
2) Slide the cowl into place over the engine. To properly align the cowl, center the cutout in the front of the cowl around the engine crankshaft and push the cowl back until the front of the engine's drive washer is 1/8" in front of the cowl. When satisfied with the alignment, use a couple of pieces of mask­ing tape, taped between the cowl and the fuselage, to hold the cowl in place.
3) With the cowl properly aligned, use a pencil and place several marks on the fuselage right at the back edge of the cowl. See photo # 47 below.
Photo # 47
4) Using a ruler and a pencil, mark the general locations of the five mounting screws on the cowl. One screw will be located on top of the cowl and two screws will be located on each side of the cowl. The
MOUNTING THE COWL
8) Using a drill with a 1/16" drill bit, drill five pilot holes through the cowl and into the fuselage.
Be careful not to drill into the fuel tank.
9) Remove the cowl. Using a drill with a 1/8"
drill bit, enlarge only the pilot holes in the cowl.
Enlarging the holes in the cowl will allow the
wood screws to slide through the cowl easily, pre­venting the cowl from cracking when the screws are tightened.
10) Using a Dremel Tool with cutting disc and sanding drum attachments, carefully cut out the air­flow exit on the bottom of the cowl and the two air-intake holes on the front of the cowl. Work slowly, taking care not to remove too much mate­rial at one time.
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11 ) Slide the cowl back into place and realign it. Using a ruler and a pencil, measure and mark the areas that will need to be removed for glow plug, muffler and high and low speed needle valve clearances.
16) Mount the Magnum Fuel Filler Valve onto the cowl and tighten the retaining nut to hold it in place. Install the fuel lines onto the fuel tank and connect them to the carburetor, muffler and fuel filler valve.
12) Remove the cowl. Using a Dremel Tool with cutting disc and sanding drum attachments, make the cutout for the muffler and glow plug. Using a drill with a 5/16" drill bit, drill two holes for the high and low speed needle valves. See
photo # 49 below.
Photo # 49
If you are using a two cycle engine, we rec-
ommend cutting out the cowl all the way to its rear edge to clear the muffler. This will make it much easier to install the cowl. If you're using a four cycle engine, this isn't necessary.
If you do cut out the cowl for a two cycle muf-
fler, use the extra 3mm x 6mm wood screw to hold down the cowl in this area.
13) Using a drill with a 3/8" drill bit, drill a hole in an inconspicuous area of the cowl to mount the Magnum Fuel Filler Valve.
14) If you want to make the cowl more scale in appearance, you can paint the area between the two intake holes flat black. You can also glue fine black screen over the two intake holes (from the inside).
17) Slide the cowl back into place and realign it. Mount the cowl to the fuselage using five 3mm x 6mm wood screws. Tighten the screws firmly to hold the cowl firmly in place.
18) Install the propeller onto the engine and tighten the propeller nut securely. The full-scale Fokker D-VII did not use a spinner assembly.
FINAL ASSEMBLY
TOOLS AND SUPPLIES REQUIRED
Excel Modeling KnifeErnst Airplane StandMasking TapeElectric Drill5/64" Drill BitStraight Edge RulerPhillips Head ScrewdriverWire CuttersScissorsPen or Pencil
INSTALLING THE SWITCH
1) Remove the two machine screws and face­plate from the switch harness that was included with your radio system.
2) The switch can be mounted in the very front of the cockpit area. This will allow clearance for an optional pilot and will also keep the switch hidden. Use the faceplate of the switch to mark the cutout and the two mounting holes.
We recommend using black screendoor mate-
rial which is available at your local hardware store. 15) Apply a couple of drops of Kwik Bond Thin
C/A to each of the cowl mounting holes in the fuse­lage. Apply only enough C/A to allow it to soak into the wood. Y ou don't want to plug the holes with C/A.
Soaking Thin C/A into the holes will reinforce
the wood surrounding the hole.
3) Using a modeling knife, make the cutout for the switch. Use a drill with a 5/64" drill bit to drill the two mounting holes.
4) Mount the switch using the faceplate and two machine screws you removed previously. Use a phillips screwdriver to tighten the screws and secure the switch in place.
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INSTALLING THE BATTERY & RECEIVER
BALANCING
5) Using a pair of scissors, cut out two pieces of Dubro Foam Rubber large enough to wrap around the receiver and the battery pack.
6) Plug the three servo leads and the switch lead into their proper slots in the receiver. Plug the bat­tery pack lead into its proper switch lead.
W e also recommend using an aileron extension
lead to make it easier to plug in the aileron servo lead when the wing is installed.
7) Wrap the receiver and battery pack in foam rubber, using a couple of long pieces of masking tape wrapped around the receiver and battery pack to hold the foam rubber in place.
8) Place the receiver onto the fuselage floor, right in front of the servos. To hold the receiver in place, use a scrap piece of balsa placed over the re­ceiver and glued to the fuselage sides.
9) Using a drill with a 5/64" drill bit, drill a hole through the left side of the fuselage, across from the receiver. Unwrap the receiver antenna and feed it out through the hole.
10) Using wire cutters, carefully make an an­tenna mount out of an extra servo horn. Cut the arm into the shape shown. See figure # 19 below .
Figure # 19
11) Secure the antenna to the side of the verti­cal stabilizer using a small rubber band, a push pin, and the modified servo arm. Use wire cutters to cut the push pin shorter, so it doesn't stick through the other side of the stabilizer.
12) Place the battery pack onto the fuselage floor behind the servos. It should be held in place using the same technique as the receiver; however, don't permanently install it at this time. You may need to move it forward or backward to balance the airplane.
TOOLS AND SUPPLIES REQUIRED
Masking TapeStraight Edge RulerPen or Pencil
BALANCING THE FOKKER D-VII
1) It is critical that your airplane be balanced correctly . Improper balance will cause your airplane to lose control and crash.
The center of gravity is located 2-3/8" back from the leading edge of the TOP wing, at the center section.
This location is recommended for initial test flying and trimming. There is a 3/8" margin forward and aft. It is not recommended that the center of gravity be located any farther back than 2-3/4".
Balance the Fokker D-VII ARF right side up
with the fuel tank empty. 2) Mount both of the wings to the fuselage.
Place a couple of pieces of masking tape, on the bot­tom of the TOP wing, 2-3/8" back from the leading edge, at the center section.
3) Place your fingers on the masking tape and carefully lift the airplane. If the nose of the airplane falls, the airplane is nose heavy . T o correct this, move the battery pack back in the fuselage just far enough to bring the airplane into balance. If the tail of the airplane falls, the airplane is tail heavy. To correct this, move the battery pack forward only enough to bring the airplane into balance. When balanced cor­rectly, the airplane should sit level or slightly nose down when you lift it up with your fingers.
Once you have flown and trimmed the Fokker
D-VII, the balance point (C.G.) can be moved for­ward or aft up to 3/8" to change the flight performance. Moving the balance point back will cause the airplane to be more responsive, but less stable. Moving the balance point forward will cause the airplane to be more stable, but less responsive.
Do not f ly th e Fokker D-VII beyond the recom­mended balance range or an uncontrollable crash could result!
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LATERAL BALANCING
While not absolutely necessary, lateral balanc-
ing will make the airplane easier to trim and will make it track better in the air. You should have an extra person to help you do this.
4) Turn the airplane upside down and tie one length of heavy cord to the engine's crankshaft and one length to the tail wheel wire.
5) With a person helping you, carefully lift the airplane up by the two pieces of cord. Watch how the wings react. If one side of the wings drop, that side is heavier than the other. To correct this, add a small amount of self adhesive lead weight to the un­derside of the bottom wing on the lighter side.
6) Repeat the procedure a couple of more times to double check your findings. When done properly the wings should stay level when you lift the airplane.
CONTROL THROWS
1) W e recommend setting up the Fokker D-VII using the control throws that were recommended in the pushrod installation steps. Those control throws are suggested for initial test flying. If you haven't set up the control throws yet, we have listed them here again, along with a set of control throws recom­mended for aerobatics. Please refer back to these pages for the proper technique for adjusting the con­trol throws.
TEST FLYING AND TRIMMING
2) Check every bolt and every glue joint in the Fokker D-VII to ensure that everything is tight and well bonded. This should include all of the control surface hinges as well.
3) Double check the balance of the airplane. Do this with the fuel tank empty.
4) Check the control surfaces. They should all move in the correct direction and not bind.
5) If your radio transmitter is equipped with dual rate switches, double check that they are on the low rate setting for your first few flights.
6) Check to ensure that the control surfaces are moving the proper amount in both the low and the high rate settings.
7) Check the receiver antenna. It should be fully extended and not coiled up inside the fuselage.
8) Properly balance the propeller. An out-of­balance propeller will cause excessive vibration which can lead to engine and/or airframe failure. To bal­ance the propeller we recommend using the Prather Prop Balancer. The part number is 520429.
SAFETY
The following are our guidelines for your safety and the safety of others. Please read and understand these safety guidelines before going out to the flying field for the first time.
Ailerons: 3/8" up 3/8" down Elevator: 3/8" up 3/8" down Rudder: 3/4" right 3/4" left
AEROBATICS
Ailerons: 5/8" up 5/8" down Elevator: 5/8" up 5/8" down Rudder: 1-1/8" right 1-1/8" left
Do not use the Aerobatic
settings for Test Flying.
PREFLIGHT CHECK
1) Completely charge the radio transmitter and receiver batteries before your first day of flying.
q 1) Do not test fly your model for the first time without first having it safety-checked by an experi­enced modeler.
2) Do not fly your model higher than approxi­mately 400 feet within 3 miles of an airport without having an observer with you. The observer should tell you about any full size aircraft in your vicinity; you should always give the right of way to full scale aircraft.
3) When flying at a flying field with established rules, you should abide by those rules. You should not deliberately fly your model in a reckless and/or dangerous manner.
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4) While flying, you should not deliberately fly behind the flight line. If your model should inad­vertently fly behind the flight line, you should change course immediately.
5) Don't drink and fly. Consuming alcoholic beverages prior to flying, or while you are flying, is a big no-no.
When it is time to land, gradually reduce altitude and power. It is not a good habit to chop the throttle and dive the airplane to the runway. When you are about 5 or 6 feet above the runway, reduce power to idle and allow the airplane to settle onto the runway . Y ou will find that the airplane lands easier if you come in slightly faster and land on the main gear rather than trying to slow down to do a three point landing.
6) You should complete a successful range check of your radio equipment prior to each new day of flying, or prior to the first flight of a new or repaired model.
7) You should perform your initial turn after takeoff away from the flightline and/or spectator area.
8) Y ou should not knowingly operate your R/C radio system within 3 miles of a preexisting model club flying field without a frequency sharing agree­ment with that club.
FLYING THE FOKKER D-VII
The Fokker D-VII is designed for those pilots who are experienced flying sport models. It is not a trainer. If you do not feel comfortable that you are able to test fly the airplane, don't hesitate to ask some­one for some help test flying and trimming it.
Flying the Fokker D-VII is much like flying any other sport airplane. It is important to let the air­plane get up to flying speed before lifting off the ground. Lifting the airplane off the ground too fast will cause the airplane to stall and crash. Y ou should allow the airplane to roll out until the tail is com­pletely off the ground and flying. Allow the airplane to roll out on its main wheels about 50 feet more and then gently pull it off the ground and into a shallow climb. Because of the torque of the engine, the air­plane will have a natural tendency to pull to the left when it is accelerating down the runway. You will need to compensate for this by applying and holding right rudder during the takeoff roll. Once the air­plane lifts off the ground, you can release the right rudder.
In the air the Fokker D-VII is a very smooth flyer. Set up with low rate settings, the airplane behaves very gently. It will fly very smooth and stable throughout the entire flight envelope. With high rate control settings, basic aerobatics are pos­sible. Loops, rolls, immelmann turns and more can be done with ease.
NOTES
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1) Kit: FOKKER D-VII ARF
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