Great Planes Spirit 2-Meter Sailplane Kit - GPMA0530 User Manual
Page 18
IF YOU ARE NOT INSTALLING
SPOILERS SKIP TO STEP 28
D 23. With the spoiler in place, glue the 3/16" x 1/4" x
1-1/4" pieces of balsa to ribs W2. 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 unneces-
sarily disrupt the airflow over the wing.
D 19. Cut one 6-1/4" long spoiler from the UN-
NOTCHED scrap end of each Outer Panel Trailing Edge
(SPRTW12). Also cut two pieces of 3/16" x 1/4" balsa
6-9/32" long, four pieces 1-1/4" long, two pieces 1" long and
two pieces of 1/16" x 1/8" balsa 6-9/32" long. This wood is
not supplied in the kit but can be purchased at your local
hobby dealer. Set half of the pieces aside for the other side of
the wing.
D 24. Drill 1/8" holes in the ribs as indicated on the plans and
snake a 1/8" diameter nylon tubing (Inner pushrod tube or
antenna tube, not included) through 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 6-9/32"
piece trapping the end of the spoiler tube in the notch as
shown in the photo.
D 20. Glue the 1/16" x 1/8" x 6-9/32" piece of balsa to the
back edge of the sheeting between the W2 ribs as shown on
the plans and in the photo.
D 21. Glue the 3/16" x 1/4" x 6-9/32" piece of balsa in its
notch on the W2S ribs. It should also be glued to the W2 ribs
at the ends and it should be flush with the TOP of the ribs.
D 22. Test fit the spoiler in its bay and sand it if necessary
to achieve a 1/32" gap around the sides and trailing edge. Use
a strip of masking tape to temporarily hinge the spoiler in
place.
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D 25. 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 and the nylon tube should protrude
approximately 4" to help the spoiler string clear the servos in
the fuselage. Drill a 1/8" hole in the bottom center section
sheeting for the tube, insert the tube in place and glue the lube
to every rib and the sheeting using thick CA.