Top Flite TOPA0101 User Manual

Page 8

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7. Pin the bottom skin to the stab plan. Draw

tick marks for the rib spacing on the skin to match
the plan. Glue the LE and TE pieces on top of the
bottom skin.

❏

8. Cut the

“ribs”

from two 3/32" x 3/8" x 24"

balsa sticks. Align them with the “tick” marks and
glue in place. Do not overlook the two angled
pieces in the center over the fuse stab base.

❏

9. Check the fit of the stab tips. Sand if

necessary, then glue them in place.

❏

10. Use a bar sander to flatten the top of the

exposed structure. No parts should be left high or
low. Check all glue joints and add glue to any that
appear weak.

❏

11. Glue on the top stab skin with medium or

slow CA. Be sure to apply glue to

all

ribs as well

as the LE and TE.

❏

12. True the stab tips to match the die-cut

stab skins.

❏

13. Draw a centerline around the stab to help

you maintain symmetry during sanding. Rough
shape the LE and the tips to the approximate cross
section shown on the plan.

BUILD THE FIN

❏

1. Trim the 3/8" x 5/8"

and the 1/4" x 3/8"

to match the plan.

Notice that they extend down

into the formers.

❏

2. Make a left and a right fin skin by placing the

die-cut 1/16" balsa

fin front

and

fin back

together

over waxed paper and applying thin CA to the joint.
Block sand lightly.

❏

3. Pin the right skin to the plan. Glue the LE and

TE on top of the skin.

❏

4. Cut to length and glue in the 3/32" x 3/8"

“ribs”

where indicated on the plan.

❏

5. Block sand the structure until it is flat.

❏

6. Use medium CA to glue the left fin skin to

all

the ribs, the LE and the TE.

❏

7. Draw a centerline around the fin to assist you

in hinging and shaping. Shape the LE of the fin to
match the cross section on the plan.

BUILD THE ELEVATORS

❏

1. Place the 3/32" balsa die-cut

elevators

over

the plan. Mark the locations of the

“ribs”

both

sides of

both

elevators.

❏

2. From the grooved 1/2" x 1/2" x 30" balsa

control surface LE

, cut two pieces to the length

shown on the plan.

❏

3. Slide the elevators into the slot in the control

surface LE’s. Glue with CA.