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STEp 3: inSTALLinG THE AiR conTRoL vALvE
STEp 4: inSTALLinG THE AiR TAnk And FiLL vALvE
STEp 5: inSTALLinG THE mAin GEAR LAndinG GEAR dooRS
q Install your air control valve servo and the air control valve to the centre
wing panel, using the plywood mounting plate, threaded pushrod wire, clevis
and four wood screws provided.
+
Note the direction of the servo output shaft. It should be toward the
trailing edge of the wing and the air control valve should be installed on the
left side of the wing's centreline.
q Slide the air tank into the plywood mounts inside the fuselage, then secure
it into place using a few dabs of silicone sealant.
q Install the fill valve onto the fuselage side (or the fuselage bottom), making
sure to tighten the mounting nuts securely.
q Connect the air lines from the retracts, air tank and fill valve to the air
control valve, using the diagram at left. Use quick-connectors on the air lines
to make it easy to connect the air lines when assembling the aircraft.
IMPORTANT The air source is connected to the middle nipple on the
air control valve.
The outer nipples on the air control valve are for the UP and DOWN air
lines. It does not matter which one is used for which purpose. The only
effect is that it changes which position is up and which position is down
(which can be changed to the pilot's preference by reversing the retract
switch on the transmitter).
The UP and DOWN air lines are connected with "T" Fittings.
q Working with one pair of main landing gear doors for now, cut away the
material from below the inside of the two precut notches, so that the hinges
can be glued flush against the inside of the landing gear doors.
q Glue two hinges to the inside of each landing gear door, making sure that
the middle of each hinge pivot point is centred with the edge of the landing
gear doors.
q Glue one balsa block underneath each hinge mounting location on the
matching nacelle, then drill a 3mm (/8") diameter hole into the nacelle and
through the balsa blocks for the landing gear door hinges.
IMPORTANT
Make sure to position the holes so that the edge of each
landing gear door will be flush with the outside edge of the nacelle. The
holes will need to be drilled right up against the edge of the nacelle.
Page 7
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