Great Planes Giles G-202 46 Kit - GPMA0238 - Manual (Page 11)

Great Planes Slot Machine ™
We have simplified the task of cutting hinge slots with the
introduction of the Great Planes Slot Machine. This
simple electric tool cuts a perfect width slot for use with
CA hinges.
To cut the hinge slot, place the blades onto the wood
where you want the slot. Lightly press the teeth into the
wood. When you are satisfied with the location, press the
button on the handle and the blades will cut easily into the
balsa wood.
❏
1. Shape the leading edge of the elevators and rudder to
a “V” as shown on the plans.
❏
2. Use a bar sander and 150-grit sandpaper to round the
tail surfaces as shown on the plan.
That’s about it for the tail surfaces. They’re a little more
work than sheet surfaces but they are much lighter, just as
strong, and a nice piece of craftsmanship. Clean off the
building board and get ready for the wing!
Right now, while the building board is clear, is a great time
to assemble the wing sheeting.
❏ ❏
1. Edge glue three 1/16" x 3" x 30" balsa sheets
together. Cut the sheets as shown above, cutting the center
sheet diagonally corner to corner, creating two LE sheets.
❏
2. Repeat step 1 to build the LE sheets for the second
wing panel.
❏
1. From the two 1/8" x 1/2" x 30" basswood sticks, cut
four 13-3/4" long spar doublers.
❏
2. Before using the 1/8" x 1/2" x 13-3/4" basswood spar
doublers, examine them carefully for possible
imperfections. Look for knots, soft spots, diagonal grain and
any other imperfections. If possible, position each spar
doubler so the imperfections (if any) are on the outer half of
the wing panel (toward the tip), where they will be least
affected by high stress. If the spar doublers are warped
slightly, try to “balance them out” by installing the warped
spar doublers in opposite directions (see sketch).
Build the Wing Spars
30"
3"
3"
Assemble the Wing Sheeting
BUILD THE WING
Finish the Tail Surfaces
11