Red Star RC LaGG-3 Manual de usuario
LaGG-3
Instruction Manual
Wingspan: 66 in. (1676 mm.)
Wing Area: 980 sq. in. (63.23 dm2)
Weight: 9.5 – 10.5 lbs (4082g – 4536 g)
Length: 59 in. (1473 mm.)
Wing Loading: 22- 24.5 oz per sq ft
(64.6-71.8 g per dm2) 308 Belltown Road, Owings Mills, MD 21117-3239
www.redstarrc.com
red_star_rc@yahoo.com
© 2006 Red Star RC
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Thank you for purchasing Red Star RC LaGG-3 sport scale model Kit. This kit has been designed using 3D
computer engineering and interlocking construction design help you to build straight lightweight model. Low
wing loading and built in washout make this model a good flying plane. Please keep in mind that this kit is
intended for intermediate builder and intermediate pilot. If you do not meet these criteria, it is recommended to
seek help from a more experienced builder / pilot.
Good luck!
Mike & George.
Red Star RC, BALTIMORE, MARYLAND, USA
WARRANTY…..Red Star RC guarantees this kit to be free from defects in both material and
workmanship at the date of purchase. This warranty does not cover any component parts damaged by use or
modification. In no case shall Red Star RC’s liability exceed the original cost of the purchased kit. Further, Red
Star RC reserves the right to change or modify this warranty without notice.
In that Red Star RC has no control over the final assembly or material used for final assembly, no liability shall
be assumed nor accepted for any damage resulting from the use by the user of the final user-assembled product.
By the act of using the user–assembled product, the user accepts all resulting liability.
If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised to
return this kit immediately in new and unused condition to the place of purchase.
Our deep appreciation to Bennie Broughton aka Oryx on www.rcscalebuilder.com for his time and
efforts he spent for deep aerodynamic analysis and recommendations for wing airfoil.
NOTES BEFORE BEGINNING CONSTRUCTION
•Read the instructions and the plan sheet prior to start any work.
•Do not remove the parts from sheets until required.
•Prior to gluing, test fit and match parts over the plan.
Kit Contents:
•Computer Drawn Plan Sheets 2
•Illustrated Instruction Manual 1
•Laser Cut Balsa and Plywood Parts Sheet 30
•Clear Canopy 1
•Fiberglasscowl 1
© 2006 Red Star RC
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Additional Hardware (Required for completing kit):
6-32 Bolt-nut Set (4 bolts, 4 Flat Washers, 4 Lock Washers, 4 Blind Nuts) 1
Push rod (Du-Bro #230) Ailerons 1
E/Z Links (Du-Bro #855) Ailerons 1
E/Z Connectors (Du-Bro #121) 1
Push Rods Sullivan Gold-n-Rod 1
Mechanical Retracts .60 - .90 size 85 degrees 1
Du-Bro Nylon Large Straps 5/32"(4) Landing Gear Covers 1
WheelAxels 2
WheelCollars 2
Wheels4” 2
Robart 121 Scale Retractable Tail wheel 1
TailWheel1.75” 1
Fuel Tank 12 oz 1
Spinner 4.25” (Dave Brown Vortech Standard S242-8242 & XX-long adapter nut) 1
Engine OS-.91FX 1
Muffler 1
Prop Master Airscrew 14x6 1
Robart 3/16" Super Point Hinges 23
Recommended Finishing Items:
MonoKote (Sky Blue 20206) 2
MonoKote (Gray/Green 20211/20214) 2
LustreKote Spray Paint 2
LustreKote Spray Flat Clear 2
Radio Gear:
7-channels receiver (9-channels recommended) 1
6” Servo Extension 2
12” Servo Extension 2
6” Y-servo Extensions 1
Standard Servos 8
Items You May Need:
Thin and Medium CA
30-min Epoxy
Wax Paper or Plastic Wrap
Razor Blades
Different Grid Sand Paper
Balsa Wood Filler
Windex
Isopropyl Alcohol
© 2006 Red Star RC
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Build the Stab & Elevator
Unroll the plan sheets. Put them on your building
board and cover with wax paper so glue will not
adhere.
1. Locate and carefully remove Elevator parts from
balsa sheets. Test fit and sand them if necessary.
Assemble using plan as a reference.
2. Glue precut leading edge ELE.
3. Glue precut tips EET and end blocks EEB.
4. Glue balsa reinforcing edges and sand to shape.
Glue precut hinge blocks EHB.
5. Shape leading edge round.
6. Put stab ribs over the plan and fix them into
position.
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7. Glue central forward ply horizontal reinforcing
stringer, rear reinforcing stringer, subleadning
edges. Glue subtrailing edge and subtrailing edge
doubler. Lightly sand it to prepare for sheeting.
8. Glue hinge blocks according to the plan using
balsa leftovers. Prepare sheeting by gluing three
1/16”x4”x19.5” sheets together along longer side.
Then cut it by half. Sheet top of the stub. Remove
from building board and sheet bottom.
9. Glue precut stub tips HST together.
10. Glue tips to the stub. Glue centering piece HS-
CP in front of the stab.
11. Glue precut leading edges HS-LE to the
stub. Build the Fin & Rudder
1. Glue two rudder halves RF1-1 and RF1-2
together.
© 2006 Red Star RC
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2. Glue two leading edges RLE together. Glue
ribs and resulting leading edge to rudder core.
3. Glue rudder bottom tips RBT together by pairs
and glue them in place in the bottom of the rudder.
3. Glue hinge blocks and control horn support
block from balsa leftovers according to the plan.
Make sure they are lower than ribs.
4. Shape leading edge round.
5. Glue ribs VS1-1(goes up top) and VS1-2
together. Place Vertical stab ribs over the plan. Glue
subleading VSSLE and subtrailing VSSTE edges.
6. Sheet top of the stab. Remove it from building
board.
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7. Glue hinge block and shape it.
8. Sheet Vertical stab from the other side. Glue
together two halves of stab tip VST and glue tip
in place.
Build the fuselage
1. Locate and assemble top fuse formers.
Attention! All formers installed with markings
facing forward (toward nose).
2. Locate and assemble nose parts. Glue
stringers together according to the plan.
3. Assemble fuse nose part over the plan.
4. Glue two 1/8x1/4x24” side bass stringers
together. Make two of them
© 2006 Red Star RC
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5. Put them over the plan and form using t-pins.
Join them with nose part.
6. Glue top formers according to the plan.
Control vertical using square.
7. Install horizontal stab saddle SS. Install top
horizontal substringer FT1. Install stringers.
8. Glue sheeting support doublers SSD. Install
vertical stab.
9. Install canopy rear window former W.
10. Shape top substringer.
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11. Sheet the fuselage with 1/16” balsa sheets. Do
not sheet tail yet. We need an access to the pushrods
installation.
12. Glue precut top stringer FT-2. Now it’s time to
remove fuselage from the building board.
13. Build the motor box. Make sure everything
strait and true. Fuelproof forward part from the
outside using 30 min epoxy tinned with isopropyl
alcohol. It will be hard to access it once installed in
the fuselage.
14. Glue two firewall 1/8” light ply and one 1/16”
burch ply formers. Attach motor mount aligning it
using the reference lines.
15. Install blind nuts and secure them with CA.
16. Glue reinforcing triangles and install firewall
using 30 min. epoxy.
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17. Build retractable tail wheel former from F19-B,
F20 and two TW’s.
18. Glue servo tray doublers F-STD to servo
tray F-ST. Install servo tray into the fuselage.
19. Install motor box and remaining formers in the
fuselage. When installing former F21 you may need
to unglue two side bass stringers from the last
former VSSTE-T. Install Wing Support formers
WS1 and WS2.
20. Install remaining stringers according to the plan.
21. Install wing support plate WSP and bolts
doublers WSP-D underneath the plate.
22. Install two rudder hinge blocks using balsa
leftovers.
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