User Manual
Hook up the air lines
Refer to this photo while hooking up the air lines.
❏ R1. Use epoxy to glue the plywood air valve
mount to the forward servo tray. After the epoxy
hardens, mount the air valve to the air valve mount.
❏ R2. Use the remaining air line and two T-fittings
to connect the fill port, check valve and pressure
gauge (optional) to the air tank. Also connect the
quick disconnects to the air lines coming from the
tail gear air lines via two T-fittings. The remaining,
open end of these T-fittings will be connected to the
air valve. Connect another line to the T-fitting
between the fill port and the check valve.This line will
be connected to the air valve. Note: Use the plywood
air line guides to keep the air lines neat and tidy and
away from other working components (such as
servos, pushrods, etc.).
❏ R3. Mount the fill port and pressure gauge (if
used) to the fuselage side. The fill port can be
mounted flush to the outside of the fuselage via a
mount made from plywood (not supplied).
❏ R4. Connect the air valve servo to the air valve using
a 2-56 x 4" [100mm] pushrod and a nylon clevis.
Connect the pushrod to the servo arm with a “Z” bend.
Connect the remaining air lines to the air valve.
Mount the kill switch
(for spark ignition engines only)
As stated in the IMAA Safety Code, all magneto spark
ignition engines must have a manually operated, coil-
grounding switch to stop the engine and prevent
accidental starting. A .3 Amp slide switch, 16 gauge
wire and two spade terminals were purchased at the
local Radio Shack
®
for this purpose. These common
components should also be available at any hardware
or home improvement store.
❏ 1. Mount the switch in a location where it will be
easily accessible from outside the model.
❏ 2. Determine the correct length of the wires
knowing that they must not contact the muffler or
engine. Cut the wires to the correct length, then
solder the wires to the switch and spade terminals.
❏ 3. Connect the terminals to the engine, making
certain the wires will not contact the engine or muffler.
BOTTOM OF SWITCH
SOLDER THE
WIRES WHERE
SHOWN
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