F E I B A O F - 9 F P A N T H E R
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Pilot Notes
CG, Control Throws and recommendations
BALANCE AND THROWS:
The Panther should be balanced right at the front carbon fiber spar, with the LG down and the
UAT full, but tanks empty. This is 25% of the chord of the plane, 4" back from the leading edge,
not including the small extensions at the root, only the straight part of the LE and TE. It is
recommended that you use lead shot mixed with epoxy, poured into the extreme nose while
standing the model on the nose, to get the weight all the way forward. You may also glue your
batteries to the extreme nose interior, but it makes maintenance on them very difficult if need be.
You can move the CG forward slightly 1/2" from the spar for first flights, but you will probably
need up-elevator to compensate. Move the CG back from the spar at your own risk, only take
small steps moving the CG aft.
FLAP TRAVEL:
4" at full travel, measured as shown in the picture. You may need a small amount of up elevator
mixed in with full flap. You can also add the pneumatic center flaps with a mix or on a separate
switch. Be sure to apply flaps for the first time high up to gauge the reaction. Flaps are not
needed for takeoff.
AILERON THROW:
The ailerons are not terribly sensitive. 1" throw up and down is a good place to start, no
differential is needed.
ELEVATOR THROW:
3/4" both up and down.
RUDDER THROW:
1" left and right.
NOSEGEAR STEERING:
1/4" left and right is plenty for takeoffs and landings. Set up dual rates if you want additional throw
for harder turns steering into and out of the pits, but be sure to switch back to low rate on takeoff,
very little steering is needed once the plane is moving.
The FeiBao Panther is a very graceful, scale-like flyer. It will slow down very nicely for landings.
Takeoffs with 22 pounds of thrust only take about 250 feet from pavement. The gear is extremely
strong and will take hard landings, and should give you good service off grass, too.
Credits:
Written by Curtis Mattikow
