Throttle Hold
Throttle hold is used to prevent the motor from powering on
inadvertently. For safety, turn throttle hold ON any time you
need to touch the helicopter or check the direction controls.
Control Tests
CAUTION: You must complete the Tail Rotor and Cyclic tests prior to every fl ight. Failure to complete the tests
and ensuring the sensor corrects in the proper direction can cause the helicopter to crash, resulting in property
damage and injury.
Tail Rotor
1. Power on the transmitter.
2. Turn TH HOLD ON and put transmitter in normal mode.
3. Connect the fl ight battery to the ESC.
4. Once Initialization is complete the LED on the
FC6250HX will begin fl ashing green.
Cyclic
When using a fl ybarless fl ight controller, you are control-
ling rotational rates while the SPMAR6250HX controls the
servos. You are not directly controlling the servos with the
transmitter.
Cyclic and Collective Control Test
Ensure the throttle hold is ON when performing the direction control tests. Test the controls prior to each fl ight to
ensure the servos, linkages and parts operate correctly. If the controls do not react as shown in the illustrations below,
confi rm the transmitter is programmed correctly before continuing on to the Motor test.
Elevator
Elevator down
Aileron
Aileron left
EN
Left Side View
Rear View
Throttle hold is also used to turn off the motor quickly if the
helicopter is out of control, in danger of crashing, or both.
The blades will continue to spin briefl y when throttle hold is
activated. Pitch and direction control is still maintained.
5. Move the rudder stick
to the right. The pitch
slider on the tail shaft
should move toward
the tail case. If the
pitch slider moves in
the opposite direction,
ensure the rudder
channel reverse
setting within the transmitter is set to normal.
6. Release the rudder control. Manually turn the helicopter
nose to the left. The fl ight controller should compensate
by moving the tail slider towards the tail case.
It is normal for the swashplate to slowly move back to
its original position after a stick input and for the servos
to not move at the same speed as your control sticks.
1. Tilt the helicopter forward. The swashplate must tilt
backward.
2. Roll the helicopter left. The swashplate must roll right.
Elevator up
Aileron right
8
Left Side View
Rear View