Great Planes Giant Aeromaster Kit - GPMA0502 - Manual (Page 16)

D D 5. Glue a 3/32" x 3/8" x 30" balsa cap strip on the
top of rib R-6. The cap strip should be flush with the
outside of the rib and extend past the TE by 1/2". Use the
leftover cap strip to cover the aft balsa spar from rib R-5
to R-6. The cap strip should be flush with the front of the
aft balsa spar.
D D 8. From the 3/32" x 3/8" x 30" balsa sticks, cut cap
strips. Use medium CA to glue them to the tops of the
ribs. Be sure to cut an opening for the strut slot in the cap
strip on rib R-PB.
D D 9. Remove the T-pins and take the wing off your
building board. Carefully remove the jig tabs. Using a
sanding bar with 150-grit sandpaper, sand the ribs flush
with the bottom main spar and aft balsa spar. Sand the TE
sheet aft of the TE to match the angle of the TE and ribs.
D D 6. To locate the slot for the strut tab in rib R-PB,
place a mark 1/2" and 1-1/2" from the aft edge of the top
main spar. Use the side of rib R-PB as a guide to mark
the sides of the slot. Using a sharp hobby knife, trim the
LE sheet from over the slot.
D D 7. Use a 3/32" x 3" x 30" balsa sheet to make the
center sheeting between the LE sheet and the TE sheet.
Before you glue the center sheeting in position, remove
the T-pins from ribs R-1B, R-2B and R-5.
D D 1. Use a razor saw and sanding bar to accurately cut
the spars, LE, TE and top sheet flush with rib R-1B.
D D 2. On rib R-1B use a straightedge to draw lines
connecting the front of the aft balsa spars, and the corner
of the notch in front of the aft balsa spar. Also, draw lines
connecting the front and aft corners of the top and bottom
main spars. Then draw lines continuing the sides of the
d i e - c u t r e c t a n g l e . Use a r a z o r saw to cut slots
in front of the aft balsa spar and in front and behind the
main spar.
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