Great Planes Giant Aeromaster Kit - GPMA0502 - Manual (Page 13)

A. Place the leading edge of one of the elevators on
your work surface and use your ballpoint pen to mark a
"bevel to" line on both sides about 3/16" high.
Note: You will probably have to adjust the height of the
elevator with card stock (as you did while marking the
hinge slots) so your "bevel to" line is not too high -
making too sharp of a "V".
D 1. Use 30-minute epoxy to glue the four forward and
four aft die-cut 1/16" ply rib doublers to both sides of the
two die-cut 1/8" balsa R-PB ribs. Take extra care to not
get epoxy in the slots for the strut tabs.
D 2. Use 30-minute epoxy to glue the sixteen die-cut
1/16" ply strut tabs together to make eight pairs. Note:
The die-cut 1/16" ply strut tabs have been cut with the
wood grain running in opposite directions. Glue together
one of each to make 1/8" plywood strut tabs. Also make
sure that the punch marks can be seen.
D 3. After the epoxy has cured, drill a 1/16" hole through
the strut tabs, at each of the punch marks.
D. Using the bevel to lines and the centerline as a guide,
make the "V" on the leading edge of the elevators with a
razor plane or your bar sander loaded with 150-grit
sandpaper.
D 2. Use the same procedure to bevel the leading edge
of the rudder.
Start by building the bottom right wing panel right side up
over the right wing panel plan. Match together sets of
spars so any warps will counteract each other.
D 3. Draw a centerline on the stab LE, stab tips, elevator
tips, elevator TE'S, fin LE, fin tip, rudder tip and rudder TE.
Use you bar sander and 150-grit sandpaper to round the
edges as shown on the plan. Use the centerline as a
guide to keep the radius symmetrical. Do not round the
TE of the stab.
TWO WARPED SPARS INSTALLED
THIS WAY WILL RESULT IN A
STRAIGHT WING
RIGHT
TWO WARPED SPARS INSTALLED
THIS WAY WILL RESULT IN A
WARPED WING
WRONG
13