Great Planes Ultra Sport 40 Kit - GPMA0410 - Manual (Page 8)

center portion of the LE square). Draw a centerline
along the trailing edge of the stab to mark the hinge line.
5. Draw a centerline all around the edges of the
elevators.
9. Accurately drill holes in the elevators for the
shown on the plans. The trailing edge should end up
approximately 3/32" wide and have a rounded shape (do
not sand to a sharp edge). Sand the leading edge to a "V-
shape" as shown on the plan.
6. Sand both sides of the elevators to a taper as
1/8" wire joiner. Begin by drilling a 1/16" or 5/64" pilot
hole, then drill the final hole to a depth of 7/8" with a
9/64" drill bit. (The hole is drilled slightly oversize to
allow for positioning, and to create a hard epoxy
"sleeve" around the wire).
10. Using an Xacto knife, sharpen the inside of one
7. Temporarily tape the elevators to the stab, pro-
viding 1/16" clearance between the elevator end and the
stab tip.
end of a 1/8" diameter brass tube and use it to cut grooves
in the leading edge of the elevators to accept the joiner
wire.
11. Roughen the joiner wire with coarse sandpaper,
then clean the wire thoroughly with alcohol to remove
any oily residue.
8. Lay the 1/8" wire elevator joiner in place on the
elevators and mark its outline using a fine point felt-tip
pen.
12. Trial fit the joiner wire into the elevators, then
glue it in using 5-minute or 30-minute epoxy. When
gluing, lay the elevator leading edges along a straight-
edge to insure perfect alignment.
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