How it Works
Carl Goldberg
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GBGA0067
User Manual
39 pgs1.41 Mb0

Carl Goldberg GBGA0067 User Manual

When it was introduced, the outstanding Russian SUKHOI took the aerobatic world by storm! Never before have aerobatic enthusiasts had a machine so capable that it appears to have no limits. It enables the pilot not only to exe­cute maneuvers with exceptional precision, but allows him to invent new maneuvers, as well! We have so completely captured the essence of this extraordinary, competition-worthy aircraft that any good sport flyer will be able to expe­rience the thrill of true unlimited aerobatics with his GOLDBERG SUKHOI. IMPORTANT: When selecting a power plant for your SU-26, do not put in a larger-than-recommended engine. This will cause undo stress to the airframe and may result in structural failure. Remember, a bigger engine does not necessarily mean better performance.
WARNING! THIS IS NOT A TOY!
LIMI TED WARRANTY
Carl Goldberg Products takes pride in the care and attention given to the manufacture of components for its model airplane kits. The company warrants replacement of any materials found to be defective for their intended use, prior to their use in construction of the air­craft, provided the buyer requests such replacement within one year from the date of purchase and provided the defective part is returned, if so requested by the company.
No other warranty, expressed or implied, is made by the company with respect to this kit. The buyer acknowledges and understands that it is his responsibility to carefully construct a finished flying model airplane and to fly it safely. The buyer hereby assumes full respon­sibility for the risk and all liability for personal or property damage or injury arising out of the buyer's use of the components of this kit.
Pt. #2097 2/03
INSTRUCTIONS
SUKHOI SU-26
©Copyright 1993
ITEMS NEEDED TO COMPLETE THIS KIT
1 RADIO GUIDANCE SYSTEM (4 CHAN­NEL MINIMUM REQUIRED)
1 ENGINE .90 2-CYCLE OR 1.20 4-CYCLE (NO BIGGER!)
1 PROPELLER (SIZE DEPENDS ON ENGINE)
1 12-16 OZ. FUEL TANK 1 12" SILICONE FUEL LINE 2 3-1/2" DIAMETER WHEELS 1 1-1/4" DIAMETER WHEEL 3 ROLLS IRON ON COVERING FLIM 1 CGP 3" DIAMETER SPINNER 3 2 OZ. BOTTLE CA GLUE 1 EPOXY 6 OR EPOXY 20 MINUTE 1 TUB JET MODEL MATE 1 CGP 1/4" FOAM PADDING 4 CGP 3/16" WHEEL COLLAR 1 TUBE CLEAR CANOPY GLUE 1 CGP 3/32" WHEEL COLLAR
OPTIONAL
PILOT: 1/5 SCALE
TOOLS AND SUPPLIES
REQUIRED FOR ASSEMBLY
MISCELLANEOUS RUBBER BANDS (INCLUDING #64)
ROLL OF WAXED PAPER SANDPAPER (ASSORTED GRITS, INCLUD-
ING COARSE (80), MEDIUM (150) AND FINE (220)
SANDING BLOCK "T" PINS (at least 100) X-ACTO MODELING KNIFE SINGLE EDGE RAZOR BLADE RAZOR SAW BUILDING BOARD (24" x 74") 36" STEEL STRAIGHT EDGE ELECTRIC DRILL 1/8" DRILL BIT 5/16" DRILL BIT 5/32" DRILL BIT SMALL SCREWDRIVER SOLDERING IRON AND FLUX COVERING IRON AND HEAT GUN MASKING TAPE 6" RULER 10" 30-60-90 DRAFTING TRIANGLE SPRAY BOTTLE
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INTRODUCTION
USING THIS INSTRUCTION MANUAL
Before you start gluing and sanding, take some time becoming familiar with the plans and looking through this entire Instruction Booklet. It is designed to guide you through the construction process step by step, so build in the order given in this book. Building options, as well as balancing, set- up, and flying the model are covered.
Like a full-size airplane, the SUKHOI is built from basic structures (stabilizer, fin, wing, etc.), which are then assembled into the complete airplane.
Special procedures or comments will usually be explained before a step, so you will be prepared. If a step begins with a statement like "Note," "Warning," or "Important," it is a good idea to read through the step before doing it.
A check-off box appears at the beginning of each step. Check these boxes as you build, so you can tell at a glance what steps you have completed. Some steps are repeated and must be marked twice, as in the case of the left and right wing panel.
Some of the instructions deal with general proce­dures. Boxes are not needed for these sections.
HOW TO READ THE PLAN
There are two plan sheets in this kit, showing the Fuselage (Body), the Wing, and the Tail Parts. Everything on the plan is drawn to full-size and shape and shows how the finished parts fit together.
The plan is drawn to show the model completely assembled, but as a result, the areas inside or under­neath are covered up, making it hard to understand how these parts fit together. Therefore, for clarity, some parts are drawn with hidden lines, others with breakaway views, and some are entirely removed from the structure and shown separately.
For example, on the fuselage, the left side of the com­pleted model has been removed to show the details inside. Sometimes a surface is broken away to reveal the detail behind or underneath. Dashed lines indicate details that are hidden behind or under another part of the sur­face.
The model is made from four varieties of wood: balsa, bass, birch, and various plywoods. Each kind of wood has its own characteristic end grain pattern (as viewed from the end) which has been drawn in this book. You can easily use these end grain patterns to identify what kind of wood is shown for a part, if you are in doubt.
HOW TO USE THE PLAN
The plan is used in several ways. The wings, stabilizer, and fin are assembled directly over the plan. Each wood part is matched over its corresponding location printed on the plan and pinned in place. To prevent ruining your plan from gluing your wings, etc. to it, cover the area you are working on with waxed paper.
The paper the plan is printed on can expand or contract slightly with changes in temperature or humidity. Because of this, a preformed part such as the notched wing trailing edge may not exactly match the plan. This is no problem, as slight deviations in the
outline or size will not noticeably affect flight performance.
Because the fuselage plugs together and is self­aligning, it is not built directly over the plan. As you assemble the fuselage, you will find the plan helpful in identifying parts and how things fit together. The plan also shows the installation of a typical radio, battery and all remaining equipment and hardware needed to com­plete the model. By referring to the examples shown, you should be able to install your own radio, etc., even if it is not the same as what is shown on the plan.
IDENTIFYING PARTS
Parts for the wing are bundled together; likewise, parts for the tail assembly are also grouped. Die-cut plywood and balsa sheets of common sizes are bundled together, so they are less likely to be damaged during shipping and handling.
The various screws, hinges, and fittings are packaged in plastic bags.
PREPARING FOR ASSEMBLY
Set a flat, warp-free pinning board on your work bench. Any material that accepts pins, such as insulation board, soft plywood, or dry-wall (sheet rock) will work. Important: any warps or bends in the pinning board will result in wings or tail surfaces that are also warped or bent, making your model more difficult to fly. Make sure that the pinning board is flat by laying a straight edge across it. You may be able to correct a warped board by shimming its low areas.
Position the area of the plan (such as the stabilizer) on which you are going to build over the pinning board and tape it in place so the plan lays flat and wrinkle free.
Place a sheet of waxed paper or plastic kitchen wrap over the work area to prevent Super Jet from sticking to your plan and ruining it.
CONSTRUCTION TIPS
In assembling your model, the following tips will prove helpful.
IMPORTANT: ALWAYS READ A FEW STEPS AHEAD. This will alert you to coming instructions and will help you plan accordingly.
You may find it convenient to empty all of the small parts from the hardware bags into a common container, such as a margarine tub. This will help you find items quickly.
When drilling any 1/16" holes in balsa, you may find it easier to twist the drill between your thumb and index finger. This procedure allows more control in positioning the drill on the center mark.
Punch out only the laser-cut parts you need as you proceed. This will help you keep track of parts, especial­ly the small ones.
Sometimes you will be asked to “tack cement” a piece of wood that will later be taken apart. To provide for easy removal without damage, use only a small drop of glue.
After completing each section of the aircraft, you may want to go back and reglue the joints, just in case some area has been missed. Be careful not to use too little glue, which will leave the model weak, or too much glue, which can make the model heavy. Properly glued joints are important to the overall strength of the model. CA glue is recommended for most parts of the assembly, although epoxy glue may be used when more time is needed for careful placement.
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WOOD PARTS
Be careful when removing parts (such as fuselage for­mers) from the laser-cut sheets. Long parts are fragile until glued into a structural unit. If necessary, use a razor knife or razor saw to assist in the removal of parts from the sheet. Sometimes a little trimming and sanding can improve parts, where desired. Save scrap until the model is completed, in case a part is missing or damaged. Also, scrap is used in some building steps.
ABOUT THE WOOD IN THE KIT
We strive to supply good quality materials in your kit. Wood parts are inspected with regard to the function they will serve. If an imperfection is spotted in a scrap corner of a laser-cut sheet and doesn't affect actual parts, the sheet is considered acceptable. Also, inter­nal stresses in wood are relieved as it is cut into parts. These relieved stresses may cause some parts to bow. Bows in wood parts (such as leading edges) readily straighten out as they are CA glued into a structural unit
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D/C SHT. 6728 2 REQ’D
D/C SHT. 6703 1 REQ’D
D/C SHT. 6704 1 REQ’D
D/C SHT. 6705 1 REQ’D
WING PIN DOUBLER
D/C SHT. 6707 1 REQ’D
D/C SHT. 6708 1 REQ’D
D/C SHT. 6709 1 REQ’D
D/C SHT. 6710 1 REQ’D
D/C SHT. 6712 1 REQ’D
D/C SHT. 6711 2 REQ’D
D/C SHT. 6706 1 REQ’D
MOTOR MOUNT SIDES
FUSELAGE SIDE
FORMER H
FORMER JFORMER G
TANK TRAY
COWL SIDE SUPPORT
WIND STOP
FRONT
BACK
FORMER E
FORMER E
FORMER C
FORMER D
TOP FRONT
TURTLEDECK
RUDDER BOTTOM
RUDDER TOP
SERVO TRAY
RUDDER GAUGE
AILERON GAUGE
ELEVATOR GAUGE
ROUNDING TOOL PARTS
ELEVATOR AIRBALANCE L.E.
COWL SUPPORT-TOP
BOTTOM AFT
TOP AFT
FIREWALL
MOTOR MOUNT FRONT
TURTLEDECK BACK-UP
FORMER F
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D/C SHT. 6720 4 REQ’D
L/C SHT. 6730 1 REQ’D
D/C SHT. 6723 1 REQ’D
D/C SHT. 6722 2 REQ’D
D/C SHT. 6727 1 REQ’D
L/C SHT. 6731 2 REQ’D
L/C SHT. 6732 1 REQ’D
D/C SHT. 6719 4 REQ’D
D/C SHT. 6718 2 REQ’D
D/C SHT. 6726 1 REQ’D
D/C SHT. 6716 2 REQ’D
D/C SHT. 6715 2 REQ’D
D/C SHT. 6714 2 REQ’D
RIB #2
LANDING GEAR DOUBLER
L. G. COVER PLATE
WING CENTER DOUBLER
WING DOWEL SCAB PLATE
FORMER B
FORMER B2
WING SADDLE DOUBLER
CENTER RIB
WING JOINER FRONT
WING JOINER REAR
RIB #2 TEM-
PORARY TAB
STAB JOINER
ELEVATOR HORN MOUNT
AILERON HORN BACK-UP
AILERON SERVO MOUNT
BEVEL GAUGE
DIHEDRAL FIXTURE
AILERON COVER SHEET
CENTER SHEET
RIB SPACER GAUGE
TIP SHEET
SHEAR WEB
WING BOLT PAD
WING CENTER SHEETING
WING TIP SHEETING
AILERON SERVO SHEETING
AILERON RIB
AILERON RIB
RIB #6
RIB #7
RIB #5
RIB #4
RIB #8
RIB #9
RIB #10
RIB #3
D/C SHT. 6725 2 REQ’D
1/2” BALSA TRI STOCK 3 REQ’D
5/16 x 3/8 x 14” BALSA 1 REQ’D
1/8 x 3/8 x 12” BALSA 4 REQ’D
1/4 x 5/16 BALSA 12” 1 REQ’D 16” 2 REQ’D 24” 3 REQ’D
3/16 x 3/8 x 20” BALSA 2 REQ’D
SHAPED L.E. x 36” 2 REQ’D
5/16 DIA. x 4-1/2” DOWEL 1 REQ’D
3/8 SQ. BASS 12” 8 REQ’D 15” 1 REQ’D 18” 4 REQ’D 35-1/8” 4 REQ’D
5/64 x 1/4 x 22” BALSA 5 REQ’D
1/8 x 1/4 BALSA 20” 3 REQ’D 36” 4 REQ’D
TAIL CONSTRUCTION
1. Collect the following items:
(1) D/C SHT. 6711 BALSA PT. # 3670
CONTAINS: (4) ELEVATOR AIR BALANCE L.E. (2) RUDDER BOTTOM (2) RUDDER TOP
(1) D/C SHT. 6712 PLY PT. #3671
CONTAINS ROUNDING TOOL
(1) D/C SHT. 6727 BALSA PT. #3657
CONTAINS: (1) STAB JOINER (4) ELEVATOR HORN MOUNT
(1) D/C SHT. 6723 PLY PT. #3697
CONTAINS BEVEL TOOL
(1) D/C SHT. 6710 PLY PT. #3669
CONTAINS: (2) STAB JOINER DOUBLER
(3) TRUSSING STICKS PT. #3675
1/4 x 1/8 x 20” BALSA
(4) RUDDER TRUSSING PT. #3676
1/8 x 3/8 x 12” BALSA
(1) STAB T.E. DOUBLER PT. #3677
1/4 x 5/16 x 12” BALSA
(2) STAB L.E. & TIP PT. #3678
1/4 x 5/16 x 16” BALSA
(3) PERIMETER STICKS PT. #3679
1/4 x 5/16 x 24” BALSA
(2) ELEVATOR TRUSSING PT. #3680
3/16 x 3/8 x 20” BALSA
(1) RUDDER TRAILING EDGE PT. #3681
5/16 x 3/8 x 20” BALSA
(8) ELEVATOR PERIMETER STICK PT. #3682
3/8” SQ. x 12” BALSA
(1) RUDDER LEADING EDGE PT. #3683
3/8” SQ. x 18” BALSA
(1) STAB PLATFORM PT. #3684
1/4 x 2-1/2 x 3-3/4” BALSA
(4) STAB/FIN SHEETING PT. #3685
5/64 x 3 x 24” BALSA
(2) FIN SHEETING PT. #3686
5/64 x 3 x 18” BALSA
(1) CENTERLINE MARKING TOOL PT. #1425
HORIZONTAL STABILIZER
2. Place the WING PLAN on the building board
and cover the horizontal stabilizer portion of the plan with waxed paper.
3.  Glue a STAB JOINER DOUBLERS to each side of the STAB JOINER, as shown above.
4.  Glue and pin the JOINER ASSEMBLY, STAB PLATFORM and T.E. DOUBLER over the plan.
(10) LARGE FLEX POINT HINGE PT. #1449
(1) WING PLAN PT. #2124 (1) FUSELAGE PLAN PT. #2123
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3/16" BALSA
1/32" PLY
PLAN
1/4 x 2-1/2 x 3-3/4" BALSA
1/4 x 5/16 x 12"
7. Trimming as needed, prefit the SHEETING
onto the stab. When satisfied with the fit, CA glue in place.
8. Flip the stab over and sheet the other side.
ELEVATOR
1. Laminate the two sets of ELEVATOR AIR BAL-
ANCE L.E.s and ELEVATOR HORN MOUNTS.
2.  Place waxed paper over the elevator portion of
the plan.
3.  Working over the plan, glue and pin the ELE- VATOR AIR BALANCE L.E.s and the ELEVA­TOR HORN MOUNTS in place.
4.  Trim each PERIMETER STICK, as needed, and glue and pin in place over the plan.
6. Trim and glue the TRUSSING in place.
5. Trim the STAB LEADING EDGES and TIPS to
fit.
Pin in place and glue.
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1/4 x 5/16 x 16"
1/4 x 5/16x24"
1/8 x 1/4 x 20"
3/8" SQ. BALSA
5/64” BALSA
6. From scrap 3/16” balsa, cut a piece 1/2”x 1/2”
triangle to form a gusset.
Glue in place, as shown.
VERTICAL FIN
RUDDER
1. After covering the fin portion of the FUSE-
LAGE PLAN with waxed paper, begin trim­ming, gluing, and pinning the 1/4 x 5/16 balsa PERIMETER STICKS in place.
Next, trim and glue the 1/8 x 1/4 TRUSS
STICK pieces in place.
2.  Trim the SHEETING to fit the fin framework. When satisfied with the fit, glue in place.
Turn the fin over and sheet the other side of the
fin structure.
NOTE: When covering the fin, DO NOT cover posts
and bottom where the structure is to be glued to the fuse.
5. Trim and glue the 3/16 x 3/8” TRUSS STICKS.
1. Laminate the two RUDDER TOPS and RUD-
DER BOTTOMS.
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1/2"
1/2"
1/4 x 5/16" BALSA
RUDDER BOTTOM
RUDDER TOP
ELEVATOR
1/8 x 1/4" BALSA
GUSSET
2. Working over the rudder portion of the plan,
place the laminated RUDDER TOP over the plan and trim, if needed. When satisfied with the fit pin in place.
Follow the same procedure for the laminated
RUDDER BOTTOM.
3.  Using 3/8” square balsa, glue the rudder L.E. to the rudder top.
4.  Use 1/8 x 3/8” balsa sticks, as shown, to form the trussing.
5.  Complete the trussing. Then use 5/16 x 3/8”
balsa to form the rudder trailing edge.
HINGING AND ROUNDING
1. Referring to the plans, mark the hinge locations
onto the elevator.
2.  Fit the stab and the elevator together and, use balsa sheeting scrap to make a 5/64” spacer between the elevator air balance and the stab.
Then, transfer the hinge locations from the ele-
vator to the stab.
3.  Again referring to the plans, mark the hinge locations onto the rudder.
As in the previous step, make a 5/64” scrap
balsa spacer between the fin and the rudder air balance.
Transfer the hinge locations from the rudder to
the fin.
4.  Using the CGP CENTERLINE MARKER, scribe a centerline onto the elevator L.E.
Next, scrib a line onto the stab T.E.
Repeat this process with the rudder L.E. and
the fin T.E.
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3/8" SQ. BALSA
5/16 x 3/8" BALSA
MARK
MARK
5/64" BALSA SPACER
5/64" BALSA SPACER
CGM CENTERLINE TOOL
1/8 x 3/8" BALSA
AIR BALANCE
5. Use a knife to make an slot on on the center-
line for each hinge.
6. Test fit each hinge, as you proceed.
NOTE: DO NOT GLUE THE HINGES IN PLACE AT
THIS TIME.
7. From D/C sheet 6723, assemble the two
BEVELING TOOLS.
Tack glue a piece of medium sandpaper onto
each tool.
8.  Using the tool marked “T,” bevel the rudder L.E. and the elevator L.E. to a point at the scribed centerline. Use a knife to bevel near the air balances, as the tool cannot get into the corner.
9.  Temporarily hinge the rudder/fin assembly and the elevator/stab assembly, in order to check the alignment and round the perimeter of the assembles. You may wish to use masking tape to help hold the pieces together.
10. Assemble the ROUNDING TOOL and insert, but do not glue, a piece of medium sandpaper
11. Use the tool to round the perimeter of the
fin/rudder assembly and the elevator/stab assembly.
When satisfied with the shape, change the
sandpaper to fine git and repeat Step 10 to smooth the rough surface.
12.  Finish sand the entire surface of both assem- blies, using a sanding block with fine grit sand­paper. Then separate the fudder from the fin and the stab from the elevator.
THIS COMPLETES THE TAIL OF THE AIRCRAFT. SET THE PARTS ASIDE UNTIL LATER.
10
SLOT
HINGE
LIKE THIS
FOR AILERON BEVEL
WING CONSTRUCTION
1. Gather the parts needed to construct the wing:
(2) D/C SHT. 6725 5/64” BALSA PT. # 3656
CONTAINS WING RIB #3
(2) D/C SHT. 6714 5/64” BALSA PT. #3688
CONTAINS WING RIB #4 & #5
(2) D/C SHT. 6715 5/64” BALSA PT. #3689
CONTAINS: WING RIB #6 & 7, AND AILERON RIB
(2) D/C SHT. 6716 5/64” BALSA PT. #3690
CONTAINS: WING RIB #8, #9, #10, AND AILERON RIB
(1) L/C SHT. 6732 PLY PT. #3652
CONTAINS: WING JOINER FRONT WING JOINER REAR, WING DOWEL SCAB PLATE
(1) L/C SHT. 6730 BALSA PT. #3654
WING CENTER RIB
(2) L/C SHT. 6731 PLY PT. #3653
CONTAINS: RIB #2, RIB #2 TAB, WING CENTER DOUBLER
(1) D/C SHT. 6726 PLY PT. #3658
CONTAINS : (1) RIB SPACING GAUGE (2) WING BOLT PADS
(2) D.C SHT. 6718 BALSA PT. #3692
CONTAINS:(8)SHEAR WEB
(4) D/C SHT. 6719 5/64” BALSA PT. #3693
CONTAINS: (2) WING TIP SHEETING (1) AILERON SERVO COVER SHEETING (4) WING CENTER SHEETING
(4) D/C SHT. 6720 5/64” BALSA PT. #3694
CONTAINS:
(2) WING CENTER SHEETING
(2) D/C SHT. 6722 5/64” BALSA PT. #3695
CONTAINS: (2) WING TIP SHEETING (2) AILERON SERVO COVER SHEETING
(1) D/C SHT. 6723 PLY PT. #3697
CONTAINS: (2) AILERON SERVO MOUNT (8) DIHEDRAL FIXTURES
(5) MAIN SPARS PT. #3700
(3/8 x 3/8 x 35-1/8" BASS)
(8) AFT SPARS PT. #3701
(1/8 x 1/4 x 35-3/4" BALSA
(4) HINGE STICK PT. #3702
(1/4 x 1 x 25-1/2" BALSA)
(2) WING TIP BLOCK PT. #3703
(1-1/4 SQ x 10" BALSA)
(1) T.E. BACK-UP PT. #3704
(1-3/4 TAPERED x 7" BALSA) (2) SHAPED L.E. PT. #3705 (12) WING SHEETING PT. #3706 (4) CAPSTRIPS PT. #3707
(5/64 X 1/4 X 22" BALSA) (1) LANDING GEAR PLATE PT. #3708
(1/4 x 2-1/4 x 6-1/4" PLY) (1) NYLON TAPE PT. #3709 (4) #6-32 x 1" SOCKET HD. SCREW PT. #1023 (4) #6 WASHER PT. #1140 (10) LARGE FLEX-POINT HINGE PT. #1449 (1) WING DOWEL PT. #1750
(5/16 x 4-1/2" ASH) (1) BEVEL TOOL “A” PREVIOUSLY CON-
STRUCTED.
11
2. Cut the plan along the dotted line.
Position the left wing plan over the right wing
plan, aligning the arrows and main spar lines, as shown.
Pin or tape the plan to the building board and
place a sheet of waxed paper over the entire wing plan.
START THE WING CONSTRUCTION BY FIRST BUILDING THE RIGHT WING HALF.
3. Edge-glue two assembllies of three 5/64 x 3 x
36” balsa.
Measure 3-1/4” from each end of both assem-
blies and cut, as shown, to makeT.E. SHEETS.
NOTE: The remainder of the sheeting will be used later
for the leading edge.
4. Pin a T.E. sheet over the plan.
Align a straight-edge with the wing centerline
and trim the sheet even with the centerline.
5.  Align a straight-edge with the aft spar marks on the plan and draw lines on the sheeting to locate the spars.
WING
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MATCH ARROWS
LEFT
RIGHT
PLAN
T.E. SHEET
T.E. SHEET
T.E. SHEET
T.E. SHEET
3-1/4"
3-1/4"
STRAIGHT-EDGE
STRAIGHT-EDGE
AFT SPAR MARKS
MARKS
MARKS
MARKS
SPAR MARKS
FORWARD AFT SPAR
TRIM
6. Position the 1/8 x 1/4 x 36” FORWARD AFT
SPAR on the T.E. sheet, in front of the front line.
NOTE: Make sure the spar end is flush with the cen-
terline edge of the T.E. sheet.
Glue the spar in place.
CENTERLINE
T.E. SHEETING
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