Top Flite TOPA0101 - Manual (Page 11)

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11. Plug the die-cut ribs R-1 to R-6 into the
spar. Hold this assembly over the plan to make
sure the ribs are perpendicular to the spar and not
skewed. When you are satisfied that all ribs are
fitting properly, lightly glue them in place with a
drop of CA. You will glue all these joints thoroughly
after the LE, TE and a few other parts are installed.
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12. Make a couple of 1/2" tall balsa blocks to
support the ends of the R-1’s and prevent the center
section from twisting. Tack glue these to the R-1’s.
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13. Slide the die-cut balsa well doublers (WD)
into place - do not glue yet .
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14. Glue the TE assembly in place. Check the
center section on a flat table to be sure it is not
twisted. Flex and reglue joints to take out any warps.
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15. Align the LE assembly onto the front edge
of the wing. Glue only to ribs R-1, R-2 and R-3.
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16. Glue the die-cut 3/16" balsa LE triplers in
place between R-3 and R-5. Glue ribs R-4 and R-5
to the LE.
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17. Glue both 1/8" die-cut plywood dowel
plates (DP and ADP) in place as shown on plan.
Glue the R-6’s to the LE. Drill a hole through the
LE of the wing through the hole in the forward
dowel plate (DP). Start with a small drill and
gradually increase the size to 5/16".
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18. If you are using retracts, glue in the die-cut
1/16" plywood spar doublers (SD) on both sides
of the spar using 30-minute epoxy. Cut a notch in
the main spar to match the strut cutout in (SD).
The notch will probably need to be deepened
slightly during final retract fitting.
Keep this cut
smoothly radiused to prevent the creation of a
weak spot in the wing
. A small Dremel ® drum
sander is helpful here. See Page 42 for details on
retract installation.
19. If you are using fixed landing gear, assemble
both sets of fixed gear parts with 30-minute epoxy
as follows:
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A . Drill the holes in the 1/8" x 1-13/16" x 3"
5-ply plates using the pattern on the wing plan.
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B . Glue each basswood 7/16" x 5/8" x 7/8"
landing gear retainer block to a grooved bass
landing gear mount
.
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C . Refering to the drawing on the wing plan, drill
a 5/32" hole where shown into each Grooved LG
mount and through each LG retainer block .
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D . Slide a 1/8" plywood plate onto each main
landing gear wire. Trial fit the LG block assemblies,
relieve any parts if necessary to allow the 1/8" plates
and the block assemblies to almost come together
(a little pressure during final assembly is good).
NOTE: The wire Landing Gear in the kit differs in
appearance from the wire LG in the photos.
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E . Drill the four 5/64" holes shown in each
basswood block assembly for the #4 x 1/2" sheet
metal screws, using the 1/8" plate as a pattern.
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