GREAT PLANES Ultra Sport 40 Plus, Инструкция по эксплуатации

Страница: 17 / 62

The strength of your landing gear depends on how well you
glue these parts in place. Make sure W3-A, WL-A and
W4-A are also glued well to the wing’s main shear web
(MSW) and to the sub-leading edge doubler (SED).
❏ ❏
25. Retractable Mains/Fixed Tailwheel. Glue the two
1/4" x 1/2" x 1-7/8" [6.4mm x 13mm x 48mm] hardwood
retractable gear mounts between W4-A and WL-A as shown
with epoxy. Add small pieces of scrap hardwood sticks glued
with epoxy between the landing gear mounts and the lite ply
ribs to reinforce the area.
❏ ❏
26. Locate two 1/4" x 1/2" x 30" [6.4mm x 13mm x
760mm] balsa sticks and cut them in five pieces 4-1/2"
[114.5] long, two pieces 2-1/4" [57mm] long and one piece
1-7/8" [48mm] long. Sand the edges at an angle so that they
fit between the ribs at the trailing edge of the wing and glue
them in place with medium CA.
❏ ❏
27. Cut another piece from the leftover 1/4" x 1/2" x
30" [6.4mm x 13mm x 760mm] sticks in the above steps and
fit it between W8 and W9 at the leading edge as shown on
the plan. Glue it in place with medium CA. After the glue has
cured, lightly sand the block until it matches the shape of
the ribs.
❏ ❏
28. Fixed and Retractable Mains/Fixed Tailwheel.
Cut a 3/32" [2.4mm] piece of scrap balsa to fit between the
main spars at the W3 rib. This piece of balsa seals the inner
end of the wing joiner pocket to prevent the epoxy from
spilling into the wing while gluing the wing joiner in place in
a future step.
❏ ❏
29. Flip the wing over so that you can see the bottom
side and glue a small piece of scrap 1/8" [3.2mm] balsa to
the edges of the aileron servo tray. Once the glue has cured,
sand the balsa to match the shape of the ribs.
17