Spektrum SPMAR7200BX - Manual (Page 30)

EN
30
The First Flight
After powering on the receiver, wait for the AR7200BX to initialize completely (Short
movement of swashplate servos and Status LED is Solid Blue or Solid Purple).
It is not necessary for the helicopter to be horizontal. Do not move the helicopter at
any time during the initialization. You can lay the helicopter on its side to prevent
shaking in wind.
CAUTIoN: Always complete a control direction test with the transmitter and
make sure the sensors are correcting in the proper directions when you tilt,
roll and yaw the helicopter by hand.
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.
When using a flybarless rotor head, you are controlling rotational rates while the
AR7200BX controls the servos. You are not directly controlling the servos with the
transmitter.
Heading Lock Mode: It is normal for the tail servo to:
1. Stay in its end position after a tail stick input or tail movement.
2. Not react immediately to a stick input.
3. Move to the endpoints with small stick inputs.
CAUTIoN: Remove main and tail rotor blades before the first flight.
Allow the motor/engine to run at all speeds. Watch for the swashplate to
automatically tilt in one direction or begin to twitch at a specific speed. These are
signs that the helicopter has mechanical vibration that will disturb the AR7200BX
sensors.
Correct any sources of mechanical vibration before the first flight.
Just before lift off, make sure the swashplate is horizontal and the tail pitch slider
is near centered.
Avoid excessive steering during lift off, otherwise the helicopter may
tip over and crash!
Give direct collective pitch input to quickly lift the helicopter into the air. This will
require some practice if you do not have experience with flybarless helicopters.