underside trailing edge of the bottom wing. Continue the
holes through the plate for the wing bolts using a 1/4" [6 mm]
drill bit.
❏
5. Attach the bottom wing to the fuselage and trim the
covering from the wing strut peg holes and the threaded
stud holes on the top of the bottom wing.
❏
6. Bolt the wing struts to the bottom wing as shown, with the
wing strut pegs fitting into the peg holes in the wing. The
knurled nuts can be tightened by hand to draw the threaded
studs into the 6-32 blind nuts that are pre-installed in the wing.
❏
7. Using the same technique, attach the top wing to the
wing struts. Bolt the top wing to the cabanes with two 4-40 x
1/2" [13 mm] SHCS, two #4 washers, and two 4-40 lock nuts.
❏
8. Cut the top three holes from four small nylon control
horns. Enlarge the holes in two of the control horns for the
bottom ailerons with a 3/32" [2.4 m] drill bit.
❏
9. Locate and mark the middle of the top and bottom
ailerons. Position the small nylon control horns at the marks
3/16" [4.8 mm] from the trailing edges of the ailerons and
mark the mounting hole positions. Drill 3/32" [2.4 mm] holes
at the marks and use thin CA to harden the wood around the
holes. Attach the control horns using eight 2-56 x 1/2"
[13 mm] Phillips screws. Be sure the control horns with the
enlarged holes are installed on the bottom ailerons.
23
