Great Planes Extra 300S 60 Kit - GPMA0236 - Manual (Page 19)

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11. Sheet the center of the wing with the remaining six
pieces of center sheeting.
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12. Use the two remaining 1/16" x 1/4" x 36" balsa sticks
to cap strip all the exposed ribs.
❏ 13. From the 3/16" x 1/4" x 30" balsa stick cut eight 3"
long hinge blocks.
❏ 14. Test fit one of the hinge blocks between the TE
spars and between R4 and R5. When satisfied with the fit
glue in place with thin CA.
❏
15. Do the same between R6 and R7, between R7 and
R8, and between R9 and R10 on both wing halves.
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16. Sand the TE of the wing square.
❏
17. Glue the two 3/32" x 9/16" x 24" balsa TE caps in place.
❏
18. Cut the ends of the TE caps off flush with the sides
of the wing tip.
❏ 19. Sand the TE caps flush with the TE sheeting.
❏
20. Glue the 5/16" x 5/8" x 30" LE in place. Sand the
root of the LE flush with the sub ribs. Sand the tips flush
with R10.
Shape the 3/16" x 1/4" x 3" stick so it will
fit between the rear spars.
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