Great Planes Super Skybolt 60 Kit - GPMA0170 - Manual (Page 58)

D 6. Cut a piece of 3/16" sq. balsa stick
(SKY6F26) to fit between the two belly formers,
and glue it to the formers and the wing where the
wing touches it. You will have to cut a notch in the
stick to clear the rear wing bolt.
D 7. Smoothly sand the 3/16" stick down until it is
only 1/16" thick at the low point of the wing
(around the spar). The stick should smoothly taper
from 3/16" to 1/16" and back to 3/16" to smoothly
continue the bottom curve of the fuselage.
NOTE: The sheeting should only lap
onto the 3/16" stick halfway (3/32") to
allow room for the other side to glue on.
Try to center the die-cut semi-circles
over the wing bolts
D 10. Glue the other side of sheeting in place. Fill
any gaps with HobbyLite model filler, and sand the
belly fairing to smoothly blend in with the fuselage
and wing.
D 8. Sand the outside curved edges of the die-cut
3/32" balsa belly sheeting to "feather" the edge so it
will lay down on the wing better. Do this to both pieces
but make sure to make a right and a left piece!
D 11. Cut through the 3/16" stick to get the wing
bolts out. Smooth out the edges of the wing bolt
holes, and harden the area around the wing bolt
holes with thin CA or lightweight fiberglass cloth.
INSTALL THE LANDING GEAR
D 9. Glue one piece of belly sheeting to the 3/16"
stick and the front and rear belly formers.
D 1. Measure forward 2-7/8" from the back of F2,
and draw a line. Use a razor saw to cut through the
3/16" balsa sheeting and the balsa fuse corners
until the saw hits the landing gear plate.
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