5
Figure 8
8.
Slide the trailing edge crutch pieces onto the ribs
(Fig. 8). Note picture does not show tabs on trailing
edge.
9.
Using thin CA glue, tack glue trailing edge to ribs
using provided jig piece to align the trailing edge
with the ribs. (Fig. 9) Install end ribs (Parts W7).
(See Fig. 13)
Figure 9
10.
Using a square, check the square of ribs to the main
spar crutch (Part W8) and begin tack-gluing the ribs
to part W8 with thin CA glue. Make sure that 3/16”
x 3/16” spars are tightly placed before doing so. It is
a good idea to have the wing with the bottom 3/16”
x 3/16” spar flat on the table and glue while pushing
down on the top 3/16” x 3/16” spar. Once you tack-
glue the ribs to part W8 and have verified that the
wing is straight, lift the wing off the surface and
continue gluing the remaining glue joints with thin
CA glue. Be sure to join with a bead of thick CA
glue, main spar (Part P1) to 3/16” x 3/16” spars.
From this point on, parts are glued, as installed.
11.
Install 9/16” strips on leading edge top and bottom
(Fig. 10). Sand square the leading edge so that you
have a flat surface flush with Part W2 (Fig. 10)
From 1/8” balsa marked “Leading Edge”, make two
19” long strips, and glue them to the leading edge.
(Fig. 11)
Figure 10
Figure 11
12.
Remove part P2 from the plywood sheet, sand off
break-aways, and install on top of center ribs. (Fig.
12)
Figure 12 (SSX)