Spread the plans out on your work surface, cover them
with a clear plastic material, such as the backing from
a roll of MonoKote® or plastic wrap and commence
construction.
UPPER WING ASSEMBLY
Wing construction for your Elder Biplane consists of
building three separate pieces for each wing; the two
panels and the center section. Note that the upperwing
panels will be joined to the upper center section in the
following sequence, without the top, inboard ends
sheeted. This sheeting will be done in the FINAL
ASSEMBLY section of the manual. In this and other
building sequences, be certain that you are working on a
flat work surface. Carefully join the plans for the TOP
LEFT WING and the TOP RIGHT WING, Plan Sheets 5
and 6, at the center line provided and accurately secure
with tape. This provides the full wing plan on which to
work. The wing will be built directly over the plans, so
cover them with MonoKote backing or clear food wrap.
1. Start with the center section first. Locate the die-cut
sheets containing parts W-11 (2, ply), W-12 (2, ply).
W-13 (1, balsa), 4W-1 A's and 4 W-1 B's. Remove these
parts from their sheets and clean up any rough
edges before assembly
2. Using the plans as a guide; measure, cut and butt-
glue the 1/4" x 1-1/2" lower leading edge, 3/32" balsa
sheet and the
3/32" x 1" trailing edge that makes up
the bottom of the center section. Note grain
direction of these pieces. Measure, cut and glue in
place the 3/8" x 1/2" upper leading edge. Glue one of
the W-11 ply dihedral braces in place against the
inside surface of the leading edge—be sure that it's
centered. Glue the outer W-1A half-ribs in place
against the rear face of the dihedral brace, lined-up
with the edges of the bottom sheeting at right angles
to your work surface. Now glue the two remaining
W-1A's in place, using the "tick" mark locations on
the plan.
3. As shown, the main dihedral brace system is a
composite made by laminating the two W-12's (ply)
to each side of W-13, which results in a 1/4" thick
part—do this now. Glue the completed dihedral
brace in place to the bottom sheeting and up against
the rear edges of the fourW-IA's. Be sure this part is
centered.
4. From your kit box, locate a piece of 1/4" x 1/2" spar
stock and cut two 5" lengths. Glue one of these
pieces in the top rear slots in the W-1 A's and against
the top forward face of the center dihedral brace.
Glue the other on the bottom sheeting against the
bottom rear face of the dihedral brace.
5. Now glue the fourW-1B rear half-ribs in place behind
the main dihedral brace. Glue the remaining W-11
(ply) dihedral brace in place on the bottom sheeting
and against the rear edges of the four W-1 B's. Locate
the 1/4" x 3/8" trailing edge material in your kit box
and cut a 5" length. This is now glued in place
against the rear face of the rear W-11 brace and to
the bottom sheeting.
3
CAP STRIPS AND
3/32" x 1" TRAILING
EDGE NOT SHOWN
TOP WING CENTER SECTION
Содержание Elder Biplane RC-37
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