Great Planes Spirit 100 Sailplane Kit - GPMA0550 - Manual (Page 17)

sand the tops of the inner panel ribs and the spar to remove any
glue globs or uneven places.
DD 10 C h e c k t o m a k e s u r e o n e e d g e o f t h e l / 1 6 " x 3 - l / 2 " x
30" Balsa Top Leading Edge Sheeting (SPT1W25) is straight,
and if not, cut it straight using a metal straight edge.
can put weights on the strip of wood if needed CAUTION • It
is important to keep the wing flat and warp-free during this
step!
D D 13 Apply thin CA between the pieces of masking tape
along the leading edge Remove the tape and apply thin CA
where the tape was
D D 11. Position the 1/16" sheeting in place so the straight
edge is against the leading edge and one end is covering W3SA
Apply several strips of masking tape to hold it in place and act as
a hinge lor the gluing process Press the sheeting onto the ribs and
trim it flush with the back edge of the spar using a modeling knife
and straight edge Be careful not to cut into the thread when
cutting near the root of the panel Save the scrap of sheeting for
later
D D 12. Lift the sheeting up and apply a bead of med or thick
CA along the top of each rib and along the top spar Quickly press
the sheeting down into place and hold it until the glue has cured
Keep the sheeting pressed against the ribs and the spar while the
glue cures A straight strip of wood the length of the panel, can
be a big help when trying to hold the sheeting down evenly You
D D 14 Drill a 13/64" hole up through the hole in the wing
bolt plate and through the 1/16" top sheeting Enlarge the hole in
the top sheeting to approx 5/8 diameter so the head of the wing
bolt will pass through
IF YOU ARE NOT INSTALLING
SPOILERS, SKIP TO STEP 23
D D 15 Cut one 8" long spoiler from the un-notched scrap
end of each Outer Panel Trailing Edge (SPRTW12) Cut four
pieces of 3/16 x 1/4 balsa 1-1/2 long and two pieces 1" long
from the 3/16" x 1/4" x 24" Balsa Spoiler Bay Frame (SPT1W26)
Also cut two pieces of 1/16" x 1/8" Balsa 8-1/16" long from scrap
1/16" sheeting.
D D 16 Glue the 1/16" x 1/8" x 8-1/16" piece of balsa to the
back edge of the sheeting, between the W2S ribs as shown in the
17