Global Hobby AK-18 Instructions Manual

.36 -.46 Sport Scale ARF

Instructions for Final Assembly

The Yak-18 was designed by the Soviet Designed Bureau Yakovlev. It was to be used as a
primary trainer in the Soviet Air Force. Like many of the Soviet aircraft, the Y ak-18 was built to withstand
the rigors of rough field takeoffs and demanding flying. The Yak-18 was equipped with a powerful
radial engine and rugged tricycle landing gear, just for this purpose. It's generous wing area, coupled
with excellent flight and ground handling qualities make the Yak-18 an excellent choice for modelers.

Now you too can experience what the full size Y ak-18 might have been like with your new Global
Yak-18 ARF. The Global Yak-18 is built by master craftsmen, utilizing the finest grades of balsa,
light ply, foam and fiberglass. It's covered using heat shrink polyester covering material, just like
you would use if you were building it yourself. A complete set of high quality hardware is in the box.
This includes the fuel tank, wheels, pushrods, clevises and much more. Even a high quality composite
10 x 6 propeller is included. Don't worry about having to buy a quality aftermarket cowl to replace the
cheap plastic one that comes in some ARF's. We've provided a one piece fiberglass cowl that's
painted to match the covering! The scale debris screen is even molded in. With this kind of quality
prefabrication, you'll be in the air and enjoying your new Yak-18 in no time!

Version V1.0 12-99 MTN All Contents © Copyright 1999, Global Hobby Distributors

1

TABLE OF CONTENTS

Kit Contents....................................................................3

Additional Items Required..............................................4

Tools and Supplies Needed.............................................4

Field Support Equipment Needed...................................4

Metric Conversion Chart.................................................4

Wing Assembly................................................................5

Hinging the Ailerons................................................5

Installing the Aileron Servos...................................6

Installing the Servo Hatches....................................6

Installing the Dihedral Brace...................................7

Joining the Wing Halves..........................................8

Main Gear Installation....................................................8

Installing the Main Gear Wires................................8

Installing the Main Gear Wheels.............................9

Wing Mounting...............................................................9

Installing the Wing..................................................9

Installing the Wing Bolt Doubler.............................9

Horizontal Stabilizer Installation....................................9

Aligning the Horizontal Stabilizer...........................9

Mounting the Horizontal Stabilizer........................10

Hinging the Elevator Halves..................................10

Vertical Stabilizer Installation........................................11

Aligning the Vertical Stabilizer..............................11

Mounting the Vertical Stabilizer............................11

Hinging the Rudder................................................11

Nose Gear Installation...................................................11

Installing the Nose Gear Brackets..........................11

Installing the Steering Arm....................................12

Installing the Steering Pushrod..............................12

Installing the Nose Gear Wheel.............................13

Engine Installation.........................................................13

Mounting the Engine to the Beams........................13

Mounting the Engine to the Firewall......................13

Installing the Throttle Pushrod...............................14

Fuel Tank.......................................................................14

Stopper Assembly..................................................14

Stopper Installation................................................15

Fuel Tank Installation.............................................15

Servo Installation...........................................................16

Installing the Fuselage Servos................................16

Throttle Connection.......................................................16

Installing the Throttle Connector............................16

Elevator Pushrod...........................................................16

Installing the Control Horns...................................16

Installing the Elevator Pushrod..............................17

Rudder Pushrod.............................................................17

Installing the Control Horn....................................17

Installing the Rudder Pushrod...............................18

Aileron Pushrods...........................................................19

Installing the Control Horns...................................19

Installing the Aileron Pushrods.............................19

Cowl..............................................................................19

Installing the Cowl Blocks....................................19

Mounting the Cowl.................................................20

Installing the Fuel Filler.........................................20

Installing the Fuel Lines........................................20

Canopy..........................................................................21

Canopy Preparation................................................21

Mounting the Canopy.............................................21

Final Assembly..............................................................21

Installing the Receiver and Battery........................21

Installing the Switch..............................................22

Balancing......................................................................22

Control Throws.............................................................22

Flight Preparation.........................................................22

Preflight Check......................................................22

Flying.............................................................................23

Notes..............................................................................24

Trim Chart......................................................................25

Product Evaluation Sheet..............................................27

Global guarantees this kit to be free from defects in both material and workmanship, at the date of purchase. This does
not cover any components 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.

To make your modeling experience totally enjoyable, we recommend that you get experienced, knowledgable 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. You can also contact the AMA at the address below.

Academy of Model Aeronautics

5151 East Memorial Drive

Muncie, IN. 47302-9252

[phone]

www.modelaircraft.org

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This instruction manual is designed to help you build a straight, great flying airplane. Please read this manual
thoroughly before beginning assembly of your new Yak-18. Use the parts listing below to identify and sepa­rate all of the parts before beginning assembly .

**KIT CONTENTS** We have organized the parts as they come out of the box for better identification
during assembly . W e recommend that you regroup the parts in the same manner . This will ensure you have all
of the parts required before you begin assembly and will also help you familiarize yourself with each part.

KIT CONTENTS

AIRFRAME ASSEMBLIES

q {2} Wing Halves with Ailerons
q {1} Fuselage
q {1} Horizontal Stabilizer with Elevator Halves
q {1} Vertical Stabilizer with Rudder
q {1} Molded Fiberglass Cowling
q {1} Molded Clear Canopy

MAIN GEAR ASSEMBL Y

q {2} Prebent Main Gear Wires
q {2} 55mm Diameter Wheels
q {4} Landing Gear Straps
q {8} 3mm x 12mm Wood Screws
q {2} Wheel Collars w/Set Screws
q {2} Nylon Axle Spacers

NOSE GEAR ASSEMBL Y

q {1} Prebent Nose Gear Wire
q {1} 55mm Diameter Wheel
q {2} Nylon Nose Gear Mounting Brackets
q {4} 3mm x 16mm Wood Screws
q {2} Wheel Collars w/Set Screws
q {1} Nylon Axle Spacer
q {1} Nylon Steering Arm
q {1} Adjustable Servo Connector Assembly
q {1} 1.5mm x 250mm Pushrod wire w/Z-bend
q {1} 3mm x 250mm Nylon Pushrod Housing

ELEVAT OR CONTROL SYSTEM

q {1} 680mm Split Elevator Pushrod Assembly
q {2} Nylon Clevises
q {1} Adjustable Servo Connector Assembly
q {2} Nylon Control Horns w/Backplates
q {4} 2mm x 25mm Machine Screws
q {4} C/A Style Hinges

AILERON CONTROL SYSTEM

q {2} 2mm x 76mm Threaded Wires w/Z-Bends
q {2} Nylon Control Horns w/Backplates
q {4} 2mm x 25mm Machine Screws
q {2} Nylon Clevises
q {6} C/A Style Hinges
q {4} 8mm x 20mm x 20mm Wood Blocks
q {8} 2mm x 6mm Wood Screws

RUDDER CONTROL SYSTEM

q {1} 680mm Rudder Pushrod Assembly
q {1} Nylon Control Horn w/Backplate
q {2} 2mm x 25mm Machine Screws
q {1} Nylon Clevis
q {1} Adjustable Servo Connector Assembly
q {3} C/A Style Hinges

THROTTLE CONTROL SYSTEM

q {1} 1.5mm x 250mm Pushrod Wire w/Z-bend
q {1} 3mm x 250mm Nylon Pushrod Housing
q {1} Adjustable Servo Connector Assembly

MOTOR MOUNT ASSEMBLY

q {2} Nylon Motor Mount Beams
q {4} 4mm x 20mm Machine Screws
q {4} 4mm x 35mm Machine Screws
q {8} 4mm Flat Washers
q {4} 4mm Split Washers
q {4} 4mm Hex Nuts

FUEL T ANK

q {1} 280cc Molded Fuel Tank
q {1} 4mm x 28mm Nylon Pick-Up Tube
q {2} 4mm x 28mm Prebent Nylon Vent Tube
q {1} 3mm x 18mm Self Tapping Screw
q {1} Length of Fuel Tubing
q {1} Metal Weighted Pick-Up
q {1) Nylon Fuel Cap
q {1} Rubber Stopper
q {1} Nylon Backplate
q {1} Nylon Fuel Filler Housing
q {1} Nylon Fuel Filler Snap Ring
q {1} Nylon Fuel Filler Plug

MISCELLANEOUS ITEMS

q {1} Plywood Dihedral Brace
q {1} Precovered Wing Bolt Doubler
q {2} Precovered Aileron Servo Hatches
q {4} 10mm x 10mm x 20mm Hardwood Blocks
q {4} 3mm x 12mm Wood Screws
q {4} 3mm Flat Washers
q {2} 4mm x 45mm Socket Cap Screws
q {2} 4mm Flat Washers
q {1} 10 x 6 Propeller for .40 Size Engines

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ADDITIONAL ITEMS REQUIRED

q {1}Hitec 4 or More Channel Radio w/5 Servos
q {2}Cirrus 12” Servo Extensions # 444713
q {1}Cirrus Y-Harness # 444728
q {1}Dubro Heat Shrink Tubing # 440
q {1}Dubro Foam Rubber # 513
q {1}Global Fuel Line # 115923
q {1}Dubro In-Line Fuel Filter # 340
q {1}Olive Drab Lusterkote Spray # TOPR7210

OPTIONAL ITEMS

q {1}Ernst Charge Jack # 124
q {1} Cirrus On-Board Battery Indicator # 444762
q {2} Williams Bros. Military Pilots # 17100
q {1}Cirrus 12” Servo Extension # 444713

TOOLS AND SUPPLIES NEEDED

q Kwik Bond Thin C/A # 887500
q Kwik Bond Thick C/A # 887510
q Kwik Bond 5 Minute Epoxy # 887560
q Kwik Bond 30 Minute Epoxy # 887565
q Wilhold Silicon Sealer # 00684
q Pacer RC256 Canopy Glue # PT-56
q 3M Fineline Masking T ape 1/8” # 218-06300
q Electric Drill
q Assorted Drill Bits
q Modeling Knife
q Machine Oil or Vaseline
q T-Pins

FOR 2 CYCLE ENGINE

q {1}Magnum XL .36 - .46 Two Cycle Engine
q {1}Propeller To Suit Engine
q {1}Thunderbolt Glow Plug # 115493
q {1}Magnum Polished Spinner Nut # 237210

Note - Part numbers for the servo extensions,
Y-harness and On-Board Battery Indicator are
for Hitec and JR radio systems. These items
are also available with different connectors for
use with Futaba and Airtronics radio systems.

q Straight Edge Ruler
q Pen or Pencil
q Dremel T ool w/Assorted Bits
q Phillips Head Screwdriver
q Builders Triangle
q 220 Grit Sandpaper w/Sanding Block
q Standard Masking T ape
q Paper T owels
q Rubbing Alcohol
q Wire Cutters
q 4mm Hex Driver

FIELD SUPPORT EQUIPMENT NEEDED

q Magnum 12V Electric Starter (# 361006)
q Magnum 12V Fuel Pump (# 237377)
q Magnum Locking Glow Clip (# 237440)
q Global 12V Battery (# 110171 )

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

q Global 12V Charger (# 110270 )
q Magnum Power Panel (# 237390)
q Global Field Buddy Flight Box (# 233072)
q Magnum 4-Way Wrench (# 237420)

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

4

If you should find a part missing or have questions about assembly, please call or write to the address below:

Customer Service Center

18480 Bandilier Circle

Fountain Valley , CA. 92728

Phone: [phone]

Fax: [phone]

E-Mail: [e-mail]

**SUGGESTION** T o avoid scratching your new airplane, do not unwrap the pieces until they are needed

for assembly. Cover your workbench with an old towel or brown paper, both to protect the aircraft and to
protect the table. Keep a couple of jars or bowls handy to hold the small parts after you open the bags.

**NOTE** Please trial fit all the parts. Make sure you have the correct parts and that they fit and are
aligned properly before gluing! This will assure proper assembly . Since the YAK-18 is hand made from
natural materials, every airplane is unique and minor adjustments may have to be made. However, you
should find the fit superior and assembly simple.

WING ASSEMBLY

PARTS REQUIRED

q {2} Wing Halves with Ailerons
q {1} Plywood Dihedral Brace
q {6} C/A Style Hinges
q {4} 8mm x 20mm x 20mm Wood Blocks
q {8} 2mm x 6mm Wood Screws
q {2} Precovered Servo Hatches

HINGING THE AILERONS

q 1) Locate the three precut hinge slots in the trail­ing edge of each wing half and the leading edge of
each of the two ailerons.

q 2) T est fit the six C/A hinges into the hinge slots
in each aileron. Each hinge should be able to be in­serted far enough into the aileron so the centerline of
the hinge is flush with the leading edge of the aileron.
If the hinges cannot be inserted deep enough, use a
modeling knife and cut the hinge slots deeper. See

figure # 1 below.

Figure # 1

of each hinge should be flush with the trailing edge

of the wing halves. If they are not, perform the same

technique as done in step # 2.

q 4) T est fit the ailerons to the wing halves, mak-

ing sure the ailerons engage each hinge completely.

Push the ailerons tight up against the trailing edge of

the wing halves. Move the ailerons up and down to

ensure they move smoothly. The gap between the

leading edge of the ailerons and the trailing edge of

the wing halves should be no more that 1/32”.

q 5) Rotate the ailerons down about 45º and apply

6-8 drops of Kwik Bond Thin C/A to the exposed area

of each hinge. Allow a few seconds between drops for

the C/A to wick into the hinge. Repeat for the opposite

sides of the hinges. See figure # 2 below .

Figure # 2

Hinge

Hinge Slot

q 3) When satisfied with the fit of the hinges in
the ailerons, remove them and test fit the hinges into
the trailing edge of the wing halves. The centerline

Modeling

Knife

Be careful not to use too much C/A at one time

as the excess C/A may run down the length of
the hinge line. Once cured, the ailerons may be stiff
and difficult to move. This is normal. Gently move
the ailerons up and down about five to ten times to
free them up.

5

INSTALLING THE AILERON SERVOS

q 6) Locate the two aileron servos, two 12” aile­ron extensions, one Y-Harness and Dubro heat shrink
tubing that you purchased separately.

q 7) Plug the two aileron servos into your radio
receiver and center them both. Make sure the aileron
trim tab on your transmitter is centered as well. In­stall the rubber isolation grommets and brass collets
onto both servos. The collets should be installed with
the flanges towards the bottom of the servo.

q 8) Install a single long servo arm onto each of
the servos. The arms should be mounted 90º to the
centerline of the servos. See figure # 3 below .

Figure # 3

q 12) Using a pencil, carefully outline the loca­tions of the two wood blocks and the servo onto the
bottom of the servo hatch.

q 13) Remove the parts from the hatch. Using
Kwik Bond 5 Minute Epoxy , glue the two wood blocks
into place on the servo hatch. Allow the epoxy to
fully cure before proceeding.

It is very important that you use epoxy in this

situation. C/A glues will not adhere as well to
the hardwoods, and if used, the blocks could break
loose when installing the servo, or worse, during flight.

q 14) After the epoxy has cured, place the servo
back onto the hatch. Mark the locations of the four
mounting screws onto the two blocks using a pencil.

q 15) Remove the servo and drill 1/16” pilot holes
through the blocks for the servo mounting screws.

Servo Arm

90º

q 9) Locate the two precovered aileron servo
hatches. Turn each of the two hatches upside down
(non-covered side) and you will notice precut oval
holes. Using a modeling knife, remove the covering
from over the two holes. These holes are where the
servo arms will exit and actuate the ailerons.

q 10) Working on the bottom of one servo hatch
for now, place one servo onto the hatch. The servo
arm should be inserted through the hole and the edge
of the servo mounting tabs should be even with the
edge of the hatch. Notice the hole is angled. Make
sure the servo is parallel to the hole.

q 11) Holding the servo in proper alignment on
the bottom of the hatch, temporarily place two of the
8mm x 20mm x 20mm wood blocks in place behind
the servo mounting tabs. See photo # 1 below.

Photo # 1

Mounting

Mounting

Block

Block

Drilling pilot holes into the wood block before

installing the screws will keep the wood from
splitting when the screws are installed.

q 16) Place the servo back onto the servo hatch
and secure it in place with the mounting screws. Re­peat steps # 10 - # 15 to install the second aileron
servo. On the bottom of each hatch place a mark so
you know which one is for the right and which one is
for the left. This will help keep you from mixing
them up.

INSTALLING THE SERVO HATCHES

q 17) T urn one wing panel right side up. Using a
modeling knife and a razor saw, remove the portion
of the root rib above the precut servo exit hole and
cut a half circle in the top of the wing to allow the
servo wire to pass up through. See photo # 2 below.

Photo # 2

Remove From

Top Sheeting

Remove From

Root Rib

Servo
Hatch

Servo

Arm

6

q 18) Attach one 12” aileron extension to one servo
lead. Cut one 1-1/2” length of heat shrink tubing and
slide it over the extension lead. Place the tubing over
the servo plugs where the lead and the extension are
connected. Shrink the tubing using a heat gun to se­cure the plugs in place. See figure # 4 below.

Figure # 4

Apply Heat Shrink

Around Plugs

Servo Lead

Extension

Lead

The heat shrink tubing will prevent the plugs

from coming apart during assembly and more
importantly during flight. If you don't use heat shrink
tubing, electrical tape works well also.

q 19) Insert the end of the servo extension into the
precut hole from inside the servo bay . Carefully push
the lead through the hole and out the other end.

INSTALLING THE DIHEDRAL BRACE

q 24) Look 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 cut away the covering from both of the root ribs,
leaving about 1/16” of covering overlapping so it does
not pull away.

It is important that the covering be removed

from the root ribs. This will ensure an adequate
wood-to-wood glue joint and prevent wing failure
during flight.

q 25) Using a ruler and a pen, locate and mark
the centerline of the plywood dihedral brace. Draw
one vertical line at this location on each side. See

photo # 4 below.

Photo # 4

Draw

Centerline

q 20) Set the servo hatch in place on the bottom
of the wing. The hatch should be orientated with the
servo arm toward the wing tip and up towards the
leading edge.

q 21) Using a ruler and a pen, measure and mark
the four mounting hole locations onto the hatch. The
holes should be located 1/8” in from each edge.

q 22) Drill 1/16” pilot holes through the hatch and
into the hardwood blocks beneath it at the locations
marked. Be careful not to drill through the top of
the wing! Remove the hatch and enlarge the holes
through only the hatch using a 5/64” drill bit. Rein­stall the hatch using the four 2mm x 6mm wood
screws. See photo # 3 below.

Photo # 3

Servo

Servo

Arm

Mounting

Screw

Hatch

Mounting

Screw

q 23) Repeat steps # 17 - # 22 to install the second
servo hatch assembly into the opposite wing half.

Dihedral

Brace

q 26) Test fit the dihedral brace into the plywood
box in each wing half. The brace should slide into
each wing half up to the centerline. If it does not,
remove the brace and lightly sand the edges and tips
until the proper fit is obtained. See photo # 5 below.

Photo # 5

Root

Rib

Dihedral

Brace

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.

q 27) Test fit both of the wing halves together with
the dihedral brace temporarily installed. Do not use
glue at this time! The wing halves should fit to­gether tight with little or no gaps in the center section
joint. If the center section joint is not tight, remove

7

the wing halves and lightly sand the edges and tips of
the dihedral brace. Test fit the wing halves together
with the dihedral brace installed again. Repeat until
you are satisfied with the fit of the wing halves.

q 28) When satisfied with the fit of the wing
halves, remove the wing halves and the dihedral brace.

JOINING THE WING HALVES

q 29) Mix a generous amount of Kwik Bond 30
Minute Epoxy . 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.

q 30) Slide the dihedral brace into the plywood
box up to the centerline. Remove any excess epoxy
before it dries using a paper towel and rubbing alco­hol. Allow the epoxy to cure before proceeding.

q 31) Once the epoxy has cured, trial fit both wing
halves together to double check that the wing halves
still fit correctly.

q 32) 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
plywood box in the second wing half and the entire
surface of both root ribs. Make sure to use enough
epoxy to fill any gaps.

MAIN GEAR INSTALLATION

PARTS REQUIRED

q {2} Prebent Main Gear Wires
q {2} 55mm Diameter Wheels
q {4} Landing Gear Straps
q {8} 3mm x 12mm Wood Screws
q {2} Wheel Collars w/Set Screws
q {2} Nylon Axle Spacers

INSTALLING THE MAIN GEAR WIRES

q 1) Using a modeling knife, remove the cover­ing from over the two main gear wire mounting slots
located in the bottom of the wing. One slot is located
in each wing half, 2-3/4” out from the centerline of
the wing and 5-3/4” in front of the trailing edge. The
two slots are 5” long.

q 2) Insert the 90º bend of one main gear wire into
the predrilled hole in one mounting slot. The coiled
spring in the gear wire should be facing the trailing
edge of the wing.

q 3) The gear wire is held in place using two land­ing gear straps and four 3mm x 12mm wood screws.
The straps should be located equal distance from the
inner and outer ends of the gear wire.

q 4) Using the landing gear straps as a guide, mark
the locations of the four 3mm x 12mm mounting
screws onto the wing using a pen.

q 33) Slide the two wing halves together and care­fully align them at the leading and trailing edges.
Wipe away any excess epoxy using a paper towel
and rubbing alcohol. Use masking tape to hold the
two wing halves in place until the epoxy cures. See

photo # 6 below.

Photo # 6

Masking

Tape

Wing

Masking

Tape

Centerline

q 34) When the epoxy has fully cured, double
check the center section joint. If any gaps are
present, mix a small amount of Kwik Bond 30
Minute Epoxy to carefully fill any remaining gaps.
Allow the epoxy to fully cure.

q 5) Remove gear wire and straps and drill four
5/64” holes into the wing to accept the wood screws.

Be careful not to drill through the top of the wing!

q 6) Reinstall the landing gear wire and straps
using the four 3mm x 12mm wood screws. T ighten
the screws completely to secure the gear wire in
place. See photo # 7 below.

Photo # 7

Coil

Mounting

Strap

Wood

Screw

Landing

Gear Wire

q 7) Repeat steps # 2 - # 6 to install the second
landing gear wire.

8

INSTALLING THE MAIN GEAR WHEELS

q 8) Slide one nylon spacer, then one wheel and
one wheel collar with set screw onto each axle. Make
sure the wheels spin free and tighten the set screws in
the wheel collars. See photo # 8 below.

Photo # 8

Wheel

Nylon

Set

Screw

Wheel
Collar

Spacer

WING MOUNTING

q 6) With the wing held firmly in position, set
the wing bolt doubler in place. The rear edge of the
doubler should be flush with the trailing edge of the
wing and the sides of the doubler should be flush
with the sides of the fuselage. See photo # 9 below.

Photo # 9

Wing Bolt

Doubler

q 7) While holding the doubler in place, use a pen
and draw around the doubler to outline it onto the
wing's surface.

PARTS REQUIRED

q {2} 4mm x 45mm Socket Cap Screws
q {2} 4mm Flat Washers
q {1} Precovered Wing Bolt Doubler

INSTALLING THE WING

q 1) Using a modeling knife, remove the cover­ing from over the two predrilled wing mounting holes
in the trailing edge of the wing. The holes are located
3/4” forward of the trailing edge and 1-1/2” out from
the centerline. Remove the covering from over the
holes on both the top and bottom of the wing.

q 2) Place the wing into the wing saddle and tem­porarily secure it in place using the two 4mm x 45mm
machine screws and two 4mm flat washers.

T wo 4mm blind nuts have been preinstalled into
the bottom of the wing mounting block.

INSTALLING THE WING BOLT DOUBLER

q 3) Remove the wing bolts and washers, but leave
the wing in place and aligned in the wing saddle. Hold
it in place with a couple of pieces of masking tape to
help keep it from moving.

q 4) Using a ruler and a pen, locate and draw a ver­tical centerline on the bottom of the wing bolt doubler.

q 5) Using a modeling knife, carefully score the
wing bolt doubler down the centerline. This will al­low the doubler to form to the wing's dihedral angle
much easier.

q 8) Remove the wing bolt doubler . Using a mod­eling knife, carefully remove the covering from just
inside the outline on the wing.

q 9) Mix up a small quantity of Kwik Bond 5
Minute Epoxy and use it to glue the wing bolt dou­bler to the wing. Any excess epoxy can be easily
removed using a paper towel and rubbing alcohol
before the epoxy cures.

q 10) After the epoxy has fully cured, remove the
wing and drill out the wing mounting holes through
the doubler using an 11/64” drill bit. Use the holes
that were predrilled through the wing as a guide.

q 11) Place the wing back into the wing saddle. Se­cure the wing in place using the two 4mm x 45mm
machine screws and two 4mm flat washers.

HORIZONTAL STABILIZER

INSTALLATION

PARTS REQUIRED

q {1} Horizontal Stabilizer with Elevator Halves
q {4} C/A Style Hinges

ALIGNING THE HORIZONTAL STABILIZER

q 1) Using a ruler and a pen, locate the centerline
of the horizontal stabilizer, at the trailing edge, and
place a mark. Use a triangle and extend this mark,
from back to front, across the top of the stabilizer.

9