3D Hobby Shop 57" Extra 330 SC Manuale di montaggio - Pagina 16

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Balancing – Balance your Extra 108mm 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.

Remember – It is much more important to have a properly balanced airplane than to save one ounce of

total weight. The Extra carries additional weight very well because of its superior aerodynamic design,

and noseweight can always be removed again if desired. After you have flown several flights, you can

tune your CG to suit your personal flying preferences.

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

Remember, JR and Spektrum radios use positive (+) exponential, Futaba and Hitec use negative (-).

The above throw measurements were taken at the aft edge of the ailerons and elevator, and from the

bottom aft edge of the rudder. Keep in mind that even the low throws mentioned here are relatively

aggressive, so be sure to also program the matching exponential listed to help soften the model's feel

around center stick.

Test your power system in a safe manner on the ground before ever attempting to fly your aircraft.

Range check your radio system according to manufacturer's instructions.

Make your first flight with the controls set on low rates. During the trimming phase, we recommend

landing with some throttle, and not attempting to "dead stick" the airplane. This may mean you need to

time your flights and keep them a bit shorter than usual. After your first flights, check all control

connections and motor and prop mounts for tightness.

We hope you enjoy your 3D HOBBY SHOP Aircraft.

Be sure to look for new aircraft and products coming soon from

3 D H O B B Y S H O P . C OM