Build the fuselage assemble the firewall, Glow engine installation – Dynaflite GPMA0510 Super Decathlon User Manual

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❏ ❏ 5. Shape the leading edge, hinge doublers and
the control horn support to the shape of the ribs.

❏ ❏ 6. Sand the trailing edge of the sheeting to the
same angle as the top of the ribs.

❏ ❏ 7. Glue the other 3/32" x 3" x 18-9/16" balsa
aileron sheet in place. Note: Align the trailing edge
of the sheeting as shown in the photo.

❏ ❏ 8. Position and trace around the die-cut 1/8"
ply control horn mount on the bottom of the aileron.
Remove the control horn mount. Cut and remove
the 3/32" sheeting from the area you traced. Glue
the control horn mount in place and sand it flush
with the aileron sheeting.

❏ ❏ 9. Sand the leading edge to a V-shape, using
the cross section at W5 on the plans as a guide.

❏ 10. Repeat steps 1-9 for the other aileron.

BUILD THE FUSELAGE

ASSEMBLE THE FIREWALL

We tested our prototype Super Decathlons with an
O.S.

1.20 4-stroke and with a 25cc US Engine

™

From this point forward when we refer to a glow
installation, we are referring specifically to the
steps we took to install the O.S. 1.20 4-stroke.
Similarly, when we refer to gas installation, we are
referring specifically to the steps we took to install
the US 25. If you are installing a gas or glow
engine other than those listed above, you may
need to modify these steps somewhat to
accommodate your particular engine.

Note: The pieces used to assemble the engine
mount for the gasoline engines are also utilized as
engine mount spacers to position the glow engine
sufficiently forward from the firewall. For clarity, we
will refer to this assembly as “engine mount spacer”
in the glow sections; however, please note that it is
the same piece as the gasoline engine mount.

GLOW ENGINE INSTALLATION

The following 13 steps are for glow installation.
Skip these steps if you are using a gas engine.

❏ 1. Select the three die-cut 1/8" ply firewall pieces
A, B and C. With the embossed labels toward the
desk top, laminate B onto A then C onto B, all with
6-minute epoxy. This assembly is now known as
the firewall.