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28.

29.

30.

31.

32.

33.

Glue the fin to the fuselage. It fits in the slots. Make sure it is
vertical relative to the wing when sighting from the front and rear.

Glue the stab to the bottom of the fin and fuselage. Make sure the
distance from each wing tip TE and the stab tips LE are equal. To
help the model turn, stab tilt can be used. Glue the stab so one
side is about 1/4" high on the side you want the model to turn
toward. Also glue the sub fin to the bottom of the stab.

Make up a short loop of rubber and install it in the fuselage along
with the nose block and prop. Check the CG location. Adjust if
necessary 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 the top
of F3, the fuselage sides, and the top of cross piece 4.

Install the 1" wheels. A good way to retain the wheels is to wrap
the axles with thread. Apply some glue to the thread as you wrap.
When dry cut off the excess axle length.

Install a Peck thrust bearing in the nose block. Use one for 3/64"
prop shafts. Slide a prop shaft from the rear of the nose block into
the thrust bearing and then install your prop.

The CG location shown in step 33 is a
suggested starting point. You may find a more
forward CG provides a better overall
performance envelope.

CG is located 2 3/4"

back from the wing

leading edge

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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