Top Flite TOPA0145 - Manual (Page 31)

❏ 8. For this step it will be helpful to position something
under the wing so that you can give support to the two
wing halves while they are being joined together. Use
30-minute epoxy to permanently join the two wing
halves together. Glue the spar web brace and the
dihedral brace into the other wing panel. Use small
clamps to hold the wings together, making sure you get
a good joint between the wing spars and the two
W1 ribs.
❏ 9. Once the wing is clamped together, epoxy the
die-cut 1/8" [3.2mm] ply LE dowel brace and the aft
dowel brace into position. Set the wing assembly
aside to dry.
Install the Ailerons
❏ ❏ 1. Locate one of the two die-cut 3/32" [2.4mm]
balsa aileron cores. Pin it over the plan.
❏ ❏ 2. Mark the location where the ribs will be glued to
the aileron core by connecting the marks on the plan.
Draw these lines on both sides of the aileron core.
❏ ❏ 3. Locate a 1/4" x 3/4" x 24" [6.4 x 19.1 x
610mm] balsa stick and mark a centerline on both
sides of it. Glue the aileron core on the centerline.
Use the same procedure that was used in making
the elevator cores.
❏ ❏ 4. Use 3/32" x 3/8" x 24" [6.4 x 9.5 x 610mm]
balsa sticks to make the ribs. Glue them onto both
sides of the ailerons at the location that you
previously marked.
❏ ❏ 5. Sand the ribs to the shape shown on the plan.
❏ ❏ 6. Shape the aileron leading edge to a V-shape
as shown on the plan. Use the centerline that you
drew as a guide when shaping.
❏ ❏ 7. Cut the hinge slots in the aileron and the wing
as indicated on the plan. Use the same slotting
method used for the elevators and rudder.
❏ 8. Do the same for the other aileron.
Build the Flaps
Perform steps 1-20 only if you are building working
flaps. If you are not building working flaps go to
step 21.
❏ 1. Cut two servo mounting rails from the leftover
1/4" x 3/8" [604 x 9.5mm] basswood sticks that were
used for the wing spars. Glue them in position as
shown on the plan. Mount the flap servo to the rails.
❏ 2. Install the threaded ball onto the servo arm.
After installing the ball, place the dual-end ball link
connector onto the ball.
❏ 3. Use one 2-56 x 6" [152mm] threaded rod, one 2-
56 x 12" [305mm] threaded rod, two clevises and two
solder-on threaded couplers to make the flap
pushrods. Make sure the servo is in position with the
dual-end ball link connector in place so you can use it
to determine the proper length for the pushrods.
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