Great Planes Spirit 100 Sailplane Kit - GPMA0550 - Manual (Page 18)

photo. It should be flush with the top of the leading edge sheeting.
to hold the spoiler about 1/32" above the surface of the wing and
then sand the spoiler to match the contour of the wing surface.
DD 17. Cut a piece of 3/16" x 1/4" Balsa (SPT1W26) to fit
between the W2S ribs (approx. 8-1/16" long). Glue the strip of
balsa in the notch on the W2SS ribs. It should be glued to the W2S
ribs at its ends and be flush with the TOP of the ribs.
D D 18. Test f i t the spoiler in the "bay" and sand it if neces-
sary to achieve a 1/32" gap around the sides and trailing edge. Use
a strip of masking tape to temporarily hinge the spoiler along the
1/16" x 1/8" strip of balsa.
D D 20. If you are using the spoiler setup shown on the plans,
the spoiler tube should exit the bottom of the wing just behind the
wing joiner box, between the first and second W1BS ribs. Drill
a 1/8" hole in the bottom center section sheeting for the tube.
D D 19. With the spoiler in place, glue the 3/16" x 1/4" x 1-
1/2" pieces of balsa to the W2S ribs. These are the spoiler rests
and should be positioned so they hold the spoiler flush with the
top surface of the wing. NOTE: It is important that the spoiler
sit flush with the top of the wing or it will disrupt the airflow
over the wing. If you desire, you can position the 1-1/2" pieces
DD 21. Slide a 1/8" diameter nylon tubing (inner pushrod
tube or antenna tube, not included) through the holes in the ribs.
Cut a 1/8" wide, 1/8" deep notch in the middle of the 3/16" x
1/4" x 1" piece of balsa and glue it to the bottom of the 3/16" x
1/4" x 8-1/16" piece, trapping the end of the spoiler tube in the
notch as shown in the photo. The nylon lube should extend past
the LE approximately 4" to help get the spoiler string to the servos
in the fuse. Glue the tube to each rib and the bottom sheeting
using med. or thick CA.
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