In the section :Connecting your RC equipmentI have read the following line :ArduPilot Mega gets its power from the RC system.But how does it do that.When I have my USB connected, the board is powered on and servos do move.Once I unplug the USB cable the board is off and nothing is happening.Thanks,Tim.
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Your RC system is normally powered by an LiPo and ESC in the case of an electric aircraft or stand-alone battery in the case of gas. That's how APM should get its power in the plane, too. The USB is only for the benchtop.
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