GREAT PLANES AT-6 Texan Buku Petunjuk - Halaman 15
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1. Remove the covering from the opening in the
center section for the retract mechanism. Test fit the retract
into the wing. Remove the balsa sheeting from the wing to
expose the retract rails. Install the retract mechanism using
four #4 x 1/2" sheet metal screws.
2. Install the main wheel onto the axle. Secure the
position of the wheel using a wheel collar and set screw.
Trim off any excess axle wire after installing the wheel.
3. Glue the Retract Wheel Well into the wing using
medium CA.
4. Now for the hard part. Bend the retract strut so the
wheel will retract into the well. The strut will be bent
forward, and outward, to work correctly.
5. Repeat steps 1 through 4 for the other retract.
6. Install the retract servo into the center section using
two hardwood blocks. The servo must be mounted as low
as possible in the wing.
7. Install the linkages necessary to operate the retracts.
Use a "Z" bend at the servo to keep everything low. Cycle
the retracts to the "down" position. Look at both wheels, and
check to see if they have a slight amount of toe-in. If not,
adjust them, as slight toe-in will help in the ground handling
of your AT-6. Cycle the retracts a few times using the radio,
just to make sure the wheels are in the correct locations,
and the gear is not binding.
8. Check the fit of the Wing Center Section Cover. If
the retract servo binds on the cover, cut a hole to allow for
servo arm clearance. Trim the wing if the cover is slightly
larger than the opening. Glue the cover to the wing using
medium CA.
BALANCE YOUR MODEL LATERALLY
IMPORTANT: Do not confuse this procedure with "checking
the C.G." or "balancing the airplane fore and aft."
Now that you have the basic airplane nearly completed, this
is a good time to balance the airplane laterally (side-to-side).
Here is how to do it:
1. Assemble the model in as in preparation for flight. (No
fuel is required for this procedure.)
2. With the wing level, lift the model by the engine
propeller shaft and the bottom of the fin post (this may
require two people). Do this several times.
3. If one wing always drops when you lift the model, it
means that side is heavy. Balance the airplane by adding
weight to the opposite, lighter wing tip. Note: An airplane
that has been laterally balanced will track better in loops
and other maneuvers.
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