Balancing
– Balance your Extra 108
mm
behind the leading edge of the wing
where the wing meets the fuselage for your maiden flight. This is approximately
on the forward edge of the carbon wing spar tube. Move the flight battery to
balance as necessary.
Our preferred CG for 3D aerobatic flight is 120-125mm. This is approximately
on the rear edge of the carbon wing spar tube.
When you experiment with CG location, move the CG only small amounts, 1/8
inch or so, at a time. A small change in CG can have a large effect on flight
characteristics.
Control Throws (in degrees and inches) and Corresponding Exponential Control
Throws
Elevator Low rate - 15 degrees - 1.25" deflection - 30% expo High rate - 55 degrees
- 4" deflection - 80% expo
Rudder max throw - just short of touching elevator - 80% expo
Ailerons Low rate - 17 degrees - 1.75" deflection - 30% expo High rate - 30 degrees
- 2.25" defection - 60% expo
Flight Model Co., Ltd. is founded in February, 2000 located in Chang An Town,
Dong Guang City, Guang Dong Province. The factory is specialized in flight model
design and manufacture. With professional model designer, specialized worker and
advanced facility, we can not only proceed the mass production, but also develop
new product according to customer's request.
Beginning with the design of fiberglass electromotion glider in 2000, four years
later we have a wide range of product to meet customer's unique requirements. Due
to the endless struggle and effort, we have deserved the concern and respect from
many flight model distributors. With four years' experience in cooperating with
customer, we have grown up to be one of the world leaders in the flight model field.
The produce process contains: fiberglass process, foam process, Balsa process
and layer press board process etc. The product range among: emulate slide flight,
engine motor flight, electromotion flight, eject flight, airscrew and the accessory of
various flight model.
Flight model always serve the esteemed customer with highest quality product,
most satisfactory price and the timely delivery time. We honor the prominent quality,
so your valuable suggestion and support will be warm welcomed and highly
appreciated, until we are the most reliable flight model manufacture in the world.
