Great Planes Ultra Sport 40 Kit - GPMA0410 - Manual (Page 18)

INSTALL WING DOWELS file, or you may sand the dowels down slightly. Do not
glue the dowels in place at this time.
INSTALL WING BOLT PLATE
1. Mark a centerline on the 1/16" x 3-3/32" x
1-1/2" ply wing bolt plate.
1. Mark a horizontal centerline on the flat which
you sanded on the wing LE. Also mark a vertical
centerline on the die-cut 1/8" ply former F-2A (the Wing
Dowel Plate).
2. Position the wing bolt plate on the bottom of the
wing, and line it up with the wing TE and centerline.
Glue it in place.
3. Sand the wing bolt plate flush with the wing TE.
2. Holding the die-cut 1/8" balsa F-2A on the
FILL LANDING GEAR SLOTS
leading edge, in the exact center of the wing, mark the
dowel locations through the dowel plate holes.
1. Temporarily install the main LG wires.
dowel locations are both the same distance from the wing
center joint.
3. Remove F-2A and double check to make sure the
4. It is important that you now drill the dowel holes
accurately! To insure accurately positioned holes, begin
by drilling small (1/8") holes in the center of the marked
locations. Then gradually increase drill bit sizes until
you have finally drilled the holes to 1/4" diameter. The
final holes you drill must extend 3-1/2" into the wing to
penetrate the front webs. NOTE: Try to drill straight in.
5. Sand one end of each wing dowel to a slightly
rounded shape. This is the end that will be inserted. Do
not sand the other end at this time.
NYLON LANDING
GEAR STRAP
#2X3/8" SHEET
METAL SCREW
2. Using scraps of balsa, fill the ends of the slots in
6. Trial fit the dowels into the dowel holes, and trial
fit the dowel plate over the dowels. If the dowels fit too
tightly, you may enlarge the holes slightly using a round
the notched LG blocks and sand flush with the surface Of
the wing. This will aid in covering later.
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