Great Planes Spirit of St. Louis ARF - GPMA1152 - Manual (Page 11)

❏
7. Epoxy the balsa wing reinforcement strips into the
pre-molded indentations in the wings.
❏
8. Drill a 1/16" [1.6mm] hole through the wing and
reinforcement strips at each of the pre-marked points.
❏
9. Drill a 7/64" [2.8mm] hole through the wing, using the
impression of the screw that you made earlier as a guide. Make
sure the hole is centered in the screw head impression.
❏
10. Remove the wing mounting screw from the fuselage and
use it to secure the wing to the fuselage. Do not overtighten.
❏
11. Thread 2 x 10mm wood screws part-way into the four
holes you drilled in the wing reinforcement strips until they
just begin to protrude out the bottom.
❏
12. As you perform this step, be very careful not to flex
the wing. Gently lift one of the strut ends up against the
screws that are now protruding from the bottom of the wing.
Secure the strut using the screw. No pilot hole is necessary.
Repeat this with the remaining three struts. Do not
overtighten, as these will easily strip out. You will later be
instructed to harden the “threaded” holes with CA.
❏
13. Examine both panels of your wing for any twist. If
either wing is twisted, use the procedure outlined below to
straighten them.
11