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Assembly Manual for T-34A/B 

Copyright 2008 Thomas A. Jacoby and WarbirdKits.com 

2   

Materials 

This kit contains the following materials: 

 

This manual (via download) 

 

Plan sheet 

 

Laser-cut wood pack 

 

Plastic canopy 

 

Plastic cowl (two pieces) 

To complete this kit, you will need the following additional 
materials: 

 

3/32” Aluminum tubing, 3” 

 

1/16” Music wire, 20” 

 

1/16” x 4” x 36” Balsa sheet,  4 each 

 

3/16

” x 3/8” x 36” Balsa stick, 1 each 

 

1/8” x 2” Hardwood dowel 

 

1/8” Square balsa stick, 1 each 

 

1/8” x 1/4" Balsa stick, 1 each 

 

1/4" Balsa triangle, 1 each 

 

1ea Wing mounting bolt 

 

Hinges (ailerons, elevator) 

 

Miscellaneous servo mounting materials and pushrods 

 

Covering materials, paint and glue 

 

Electric power system 

– BP 21 CD-ROM Outrunner  

NOTE: We recommend that you read this entire 
manual before beginning construction. 

Please note that this manual is laid out in two columns. All 
steps are in order from top to bottom, left column first, then 
right column. 

Construction 

Wing Skins 

 

Each wing bottom skin consists of two laser-cut pieces: 
forward and aft.  

 

Lay the pieces of a wing skin on a flat board or table, 
with the outer surface up. Run a length of masking tape 
along the join lines. Turn the assembled skin over, 
bend the joints open, and run a bead of aliphatic resin 
or wood glue down the joints.  

 

Lay the assembled skin back down on the board 

– 

masking tape side down. Then weight it down and 
keep the weight on the skin until it is completely dry. 

 

When the skin is dry, remove the masking tape. Sand 
the skin smooth. 

 

Follow the same steps to assemble two wing top skins, 
using your 

1/16” x 4” x 36” balsa sheets.  

 

Lay a bottom skin on a top skin. Trace the shape of the 
bottom skin onto the top skin, adding a 1/4” margin at 
the trailing edge. Cut out the top skin. 

 

Cut each top skin into two pieces along the line 
between the two W3 ribs. 

Summary of Contents for T-34A Mentor

Page 1: ...Copyright 2008 Thomas A Jacoby and WarbirdKits com T 34A B Mentor 1 12 Scale BP 21 Brushless Motor 33 25 Inch Wingspan Weight 18 20 ounces Version 2 0 15 November 2008...

Page 2: ...that this manual is laid out in two columns All steps are in order from top to bottom left column first then right column Construction Wing Skins Each wing bottom skin consists of two laser cut piece...

Page 3: ...to your building board over a sheet of wax paper Glue the 3 16 x 3 8 balsa leading edge against the front edge of the left bottom wing skin Glue W3 and W3A ribs together Assemble W2 through W7 ribs t...

Page 4: ...rib assembly to the bottom sheet and the spar The notch in the spar is cut at an angle to set the dihedral Glue a scrap of 3 16 balsa to the top of the leading edge between W1 and W2 Make an aileron t...

Page 5: ...1 Cut the aileron free from the wing using the laser cut guide lines on the underside of the wing Sand the front of the aileron flat Glue W11 aileron leading edge in place Drill a hole in W11 for the...

Page 6: ...Repeat these steps for the right hand panel Glue the wing panels together Reinforce the join with 1 2 fiberglass tape and epoxy Install the 1 8 dowel in the leading edge The dowel should project abou...

Page 7: ...e sides from the rear of the wing saddle to the tail Glue 1 8 square balsa reinforcements to F2 F3 F6 and F8 formers Pin F14 cockpit floor in place over the plan Glue F6 former to F14 cockpit floor No...

Page 8: ...two fuselage sides to F14 and F6 Glue F3 and F2 formers in place Glue F8 F9 and F10 formers in place Glue the two F1 formers together Make sure that the motor mount holes line up and that they fit yo...

Page 9: ...A B Copyright 2008 Thomas A Jacoby and WarbirdKits com 9 Glue F1 in place Glue F2A F3A F4 F5 2 each F7A F8A and F9A in place Glue a 1 8 x 1 4 stick in place between F7 and F9A Sheet between the two F5...

Page 10: ...between F7 and F9A Cut and glue 1 2 wide strips of 1 16 sheet along the cockpit sides Alternatively glue in 1 4 X 1 2 balsa sticks and sand to shape Put the wing in place on the fuselage and adjust th...

Page 11: ...rdKits com 11 Build the tail surfaces over the plan Glue the tail blocks TB1 and TB2 together making two pairs Bevel the top edge of F10 so that the elevator will not bind when it moves down Mark a ce...

Page 12: ...temporary 1 8 balsa spacers to hold the blocks in place Shape the tail blocks as shown and sand them flush with F10 Put the fin back in place Glue tail blocks TB1 to the fuselage and tail blocks TB2...

Page 13: ...ator pushrod Glue the two ply wing mount pieces together Then glue them into the slots in the wing mount doublers Reinforce the inside corners with scrap 1 4 balsa triangle stock Put the wing in place...

Page 14: ...and wing mount Tap the wing mount for your chosen wing bolt Sheet the bottom of the fuselage from F6 to F10 with 1 16 balsa Cowling Trim the top and bottom cowl sections to the trim line Tape the cowl...

Page 15: ...ks from hardwood stock Glue one block to each inside corner where F2 meets F12 as shown Glue one block to the bottom of F2 as shown Tape strips of light cardboard over all mounting blocks and poke a p...

Page 16: ...ilizer Glue the stabilizer assembly in place on the fuselage Glue the fin in place on the stabilizer Flying Setup The T 34 should balance at the point shown on the plan approximately 2 5 16 from the w...

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