17
Recommended Control Throws
Ailerons
Low Rate
5/16" Up and Down
High Rate
1/2" Up and Down
Elevator
Low Rate
5/16" Up and Down
High Rate
1/2" Up and Down
Rudder
1/4" Both Directions
Center of Gravity 2-1/8"- 2-1/2" Back from the wing leading edge at the root
Preflight
If you are new to flying R/C aircraft, or a seasoned modeler, we recommend you have a
fellow R/C modeler help you with the first flight. Some items you will need to complete
on your first preflight are:
1. Aircraft assembled correctly and ready for flight.
2. All control throws and expos are set per this manual.
3. Transmitter fully charged and on correct model.
4. Aircraft balances at the recommended location. (2-1/2” aft of wing Leading Edge)
5. Flight Batteries are fully charged and secure.
6. All electronics are operating correctly, proper direction, and secure.
7. Complete a radio Range Check per your radio manual.
8. Balance propeller and make sure it is secure.
9. Wait for a calm or light wind day for first flights.
10. If you are new to R/C flying, consider having an accomplished flyer make the first
flight and trim the aircraft. A buddy-box training system is also very helpful.
Flying
The B-25 has very good ground handling character due to its wide stance tricycle
landing gear. This makes taxi and take-off an easy task. Point the nose into the wind
and smoothly advance the throttle, use a little rudder to maintain a straight line and as
the speed increases ease back on the elevator for a smooth lift off. Once the gear are
clear hit the retract switch and watch the gear slowly come up and then the gear doors
swing closed. The flight is scale looking with moderate speed, climb is strong; the two
counter rotating props provide a lot of thrust without the associated torque. Mild
aerobatics can be performed, loops, rolls and inverted are possible but not particularly
scale. Touch-and-go’s are a joy, set up on the runway and drop the gear, ease back on
the throttles and lightly touch down, feed in full throttle and ease back into the sky.
Landings are best accomplished by maintaining a little power completely through the
touch down. The working position lights allow you to continue flying right up to dusk.
Happy Landings!
2008 Official Academy of Model Aeronautics National Model Aircraft Safety Code
Summary of Contents for Apache Princess
Page 1: ...1...
