Great Planes Super Sportster 40 MkII Kit - GPMA0205 - Manual (Page 8)

D 10 Cut a groove from the tail gear hole to the bottom
end of the rudder that will allow the nylon tail gear bearing
to fit flush with the LE of the rudder
D 11 Carefully draw a centerline all around the edges of
the rudder Sand the LE of the rudder to a "V" shape as
shown on the plans Sand a radius on the LE of the fin and
the TE of the rudder Leave the TE of the fin squared off.
D 2 After the epoxy has cured, cut out the appropriate
notch in each W-2 and W-3 rib for the landing gear rails If
you are building a taildragger, cut away the balsa from
the front notch. For a tricycle gear configuration, remove
the balsa from the rear notch
TWO WARPED SPARS INSTALLED
THIS WAY WILL RESULT IN A
STRAIGHT WING
TWO WARPED SPARS INSTALLED
THIS WAY WILL RESULT IN A
WARPED WING
Note: The wing panels are built "UPSIDE-DOWN" on
the plans Since it is the standard convention to show the
Top View of the wing, and the wing panels are built
upside-down, the LEFT wing panel is built over the
RIGHT Wing Top View and vice-versa This does not
present any problems; just be sure to build a left and
a right wing.
D D 3 Use the cross-pinning technique to pin a 3/8" x 3/8"
x 25-1/4" balsa spar over a wing plan Don't forget the
waxed paper.
D 1 Lay out 3/32" die-cut wing ribs W-2 and W-3 exactly
as shown in the photo Position the 1/16" die-cut birch ply
doublers (LGD) on each rib as shown By so doing we will
be making a right and a left pair Use 30 minute epoxy to
glue the doublers to the ribs Make sure that the doublers
are perfectly aligned with the ribs spar notches
D 4 The shaped and notched wing leading edges (LE)
and trailing edges (TE) are fastened together by thin strips
of balsa Separate them by cutting with a hobby knife, as
shown in the sketch above
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