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Fit the remaining ribs and glue them in place. Note that there will be
a gap between the slot in rib R1 and the spar. This gap provides
clearance for the dihedral braces that are added later.

Remove the wing panel from the building surface. Trim the LE
and TE to length. Glue the tip, R12, to the structure. Trim and
round off the LE using the plan as a shape guide.

19.

Build the second wing panel.

20.

21.

22.

23.

24.

25.

26.

27.

Block each wing panel up 2 1/2" at the tip and sand the root so it
is smooth and straight.

Cover the wing. Apply three coats of 50/50 clear dope after water
shrinking the tissue. Like the stab, the wing should cure while
pinned to a simple jig for about a week.

Rubber band the wing to the fuselage. Use two bands on each side
in an "X" pattern. Make sure the distance from each wing tip TE to
the rear of the fuselage is the same. Cut two lengths of 1/8" dowel
1/4" long. Split them along their length. Glue a dowel half to the
bottom of the TE and LE on each side so they just touch the
fuselage.

2 1/2"

Cut two 1/8" wing mount dowels 2" long. Glue them in each set of
wing dowel supports on the fuselage.

1/8" Diameter
Dowels

Glue the dihedral braces to one wing panel. They should be flush
with the bottom of the spar.

Glue other wing panel to the first. Lay the first wing panel flat on
your building surface and then block up the second panel so the tip
is 5" above the building surface. Let the glue dry toughly.

R14

5"

Equal

Split
Dowel

Summary of Contents for LARK REPRODUCTION

Page 1: ...JETCO LARK REPRODUCTION BY PAUL BRADLEY ASSEMBLY GUIDE AND PLAN OCTOBER 2015 A RUBBER POWERED 27 5 WING SPAN MODEL FROM THE 1960 s...

Page 2: ...s 9 to help form the correct angle at the rear Check to be sure things are square and that the sides have a symmetrical bend Glue formers F3 F5 and F6 to one fuselage side Make sure they are square to...

Page 3: ...Glue the landing gear assembly to the forward face of former F3 Also glue in the gussets F4 Rough shape the nose block using the plan as a guide Place the nose block on the fuselage and final sand th...

Page 4: ...uld cure while pinned to a simple jig for about a week Rubber band the wing to the fuselage Use two bands on each side in an X pattern Make sure the distance from each wing tip TE to the rear of the f...

Page 5: ...y with some ballast in the nose or tail Replace the short motor with a flight motor and the model is now ready for its trim flights Equal Cut the windshield from clear plastic Glue the windshield to t...

Page 6: ...4 F2 F15 F4 F1 2 T Nose Block Laminations Make from 1 8 Balsa Temporary Nose Clamp Make from 1 32 plywood F1 Make 2 Windshield Pattern Make from clear plastic Peck thrust bearing for 047 prop shafts T...

Page 7: ...0 1 2 3 4 5 6 INCHES F6 F5 F12 F16 5 5 6 6 7 7 8 8 F4 F5 F13 1 8 Dowel CG...

Page 8: ...production of the kit introduced in the early 1960 s Drawn by Paul Bradley Oct 2015 27 5 Wing Span Sheet 1 of 5 0 1 2 3 4 5 6 INCHES F12 9 9 F17 F18 Landing Gear Make from 047 piano wire 3 16 Aluminum...

Page 9: ...0 1 2 3 4 5 6 INCHES R8 R9 R10 R11 R12 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 Make two from 3 32 balsa Make two of each wing rib from 1 16 balsa 1 8 x 1 2 Tapered Stock 1 8 x 1 2 Tapered Stock...

Page 10: ...Jetco Lark A reproduction of the kit introduced in the early 1960 s Drawn by Paul Bradley Oct 2015 27 5 Wing Span Sheet 2 of 5 R1 R2 R3 R4 R5 R6 R7 R13 R14 R14 0 1 2 3 4 5 6 INCHES...

Page 11: ...0 1 2 3 4 5 6 INCHES R1 R2 R3 R4 R5 R6 R7 R13 R14 R14...

Page 12: ...introduced in the early 1960 s Drawn by Paul Bradley Oct 2015 27 5 Wing Span Sheet 3 of 5 7 R8 R9 R10 R11 R12 0 1 2 3 4 5 6 INCHES R13 Make two from 1 8 balsa R14 Make two from 1 32 plywood 1 8 x 1 2...

Page 13: ...0 1 2 3 4 5 6 INCHES S1 S2 S3 S4 S5 S6 S7 S7 S8 S8 S4 S2 S5 S3 S1 S6 2 S7 2 S8 2 Make these parts from 3 32 balsa...

Page 14: ...s Drawn by Paul Bradley Oct 2015 27 5 Wing Span Sheet 4 of 5 0 1 2 3 4 5 6 INCHES S6 3 32 Square balsa 2 1 3 4 5 6 7 8 9 Make these parts from 3 32 balsa Make two each of parts 3 through 9 For power...

Page 15: ...0 1 2 3 4 5 6 INCHES F3 F6 F2 F2A F15 2 F16 2 F12 2 F17 F18 F13 Make these parts from 1 16 balsa Make two fuselage sides F4 4...

Page 16: ...Jetco Lark A reproduction of the kit introduced in the early 1960 s Drawn by Paul Bradley Oct 2015 27 5 Wing Span Sheet 5 of 5 0 1 2 3 4 5 6 INCHES...

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