Owner manual
❏ 15. Make a mount for the air fill receptacle. Use a
5/16"[8mm] brass tube to cut a hole through the
fuselage for the valve, then glue the mount to the inside
of the fuselage with the fill receptacle in the hole.
❏ 16. The same as was done for the battery, make a
mounting plate for the receiver. Mount the receiver,
then glue the mount into position.
Note: The three 6"[150mm] servo extensions coming
from the receiver protruding through former F3
should actually be 12"[300mm] servo extensions.
Label strips of masking tape wrapped around the
servo extensions for identification.
❏ 17. The receiver antenna may be routed down
through the fuselage through small holes drilled in
the formers, or mounted externally. The way we
mounted ours was via an Ernst #153 Antenna Exit
Guide. Rather than using the hook included with the
antenna, the hole in the mount was enlarged to
accommodate a small piece of tubing (taken from a
compressed air spray can). The antenna was guided
up through the tubing. This also presents a
somewhat scale appearance.
❏ 18. Connect the air lines to the nose gear, then
mount the gear.
❏ 19. Use a 1/8"[3.2mm] drill or a 1/8"[3.2mm] brass
tube sharpened on one end to cut holes where
necessary to guide all of the air lines to the control
valve. The two “up” lines in the wing are joined to a
Robart T-fitting.The remaining, open fitting on the “T”
is connected to a few inches of line with a Robart
quick-disconnect on the end. The “down” lines in the
wing are treated the same way. In the fuselage, the
up line coming from the nose gear is connected to
another T-fitting. One of the open ends of the T-fitting
is connected to another segment of line with another
quick-disconnect which, when joining the wing to the
fuselage at the flying field, will be connected to the
quick-disconnect coming from the up line in the wing.
The remaining end of the T-fitting is connected to the
control valve via another piece of air line. Connect
the other nose gear down line to another quick-
disconnect and the control valve via another T-fitting
the same way.
❏ 20. Connect the fill receptacle to the line coming
from the air tank and to the air valve via one more
T-fitting. Be certain all of the lines are securely
connected and that none of the air lines will interfere
with any of the other systems.
❏ 21. Connect the rudder and stabilizer servos to
12"[305mm] servo extensions. Secure the
connections with heat shrink tubing, tape or special
clips suitable for that purpose. Connect the servos to
the receiver.
❏ 22. Hook up the nose steering servo, the throttle
servo and the air control valve servo using the
hardware shown.
Here is an overall shot of the radio installation
and servo hookup in this area.
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