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19
Setting Landing Gear
Using a 2-position R/C transmitter switch, landing gear retraction can be carried out remotely.
Setting up the transmitter
Select a 2-position switch (default setting is OK) as the control input for the landing gear. Ensure the
corresponding receiver port is connected to the “IN” port on control board. For the A2 flight control system,
connect the main controller’s F1 port to “IN” port on control board.
Raise: Toggle the switch to this position to raise the landing gear.
Lower: Toggle the switch to this position to lower the landing gear.
Notes:
(1)
If the transmitter switch has a FailSafe function, set the FailSafe value to the [Lower] position. This
ensures that landing gear will lower automatically when the receiver enters FailSafe mode.
(2)
To avoid accidental switch triggering, slide levers or other controls can be used for landing gear control.
Usage procedures
1.
Ensure transmitter and receiver batteries are fully charged.
2.
Toggle switch to [Lower] position, and then turn on transmitter.
3.
Ensure [R], [L] and [IN] connections are correct.
4.
Ensure landing gear is in the [Lower] position then power on the system. If the green LED on the landing
gear control board is solid, everything is normal. If it flashes green slowly, re-calibrate the system according
to instructions in “Recalibrating Servo Travel”.
5.
Toggle switch to [Raise] position ONLY AFTER takeoff.
6.
Toggle switch to [Lower] position for landing.
Tips
(1)
Servo power will shut off within 3 seconds after the landing gear has reached its target position.
