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Message & Error Explainer

What an ArduPilot message means and what to do about it

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Disarmed by itself after the automatic landing

InformationPlane: take-off, landing, QuadPlanePlane only

What ArduPilot says:

After an automatic landing has reached its flare and the plane has stopped flying, Plane disarms by itself LAND_DISARMDELAY seconds later (20 by default), so that the motor cannot start again on the ground. With LAND_DISARMDELAY 0 it stays armed until you disarm it.

To fly again without rebooting, switch to MANUAL or FBWA first: that resets the mission and clears the “In landing sequence” arming check.

Parameters to look at

ParameterWhat it is
LAND_DISARMDELAYLanding disarm delay
ARMING_REQUIRERequire Arming Motors
The code that sends it

Auto disarmed

ArduPlane/ArduPlane.cpp Plane::disarm_if_autoland_complete() · Open in ArduPilot Plane-4.6.3

ArduPlane/Plane.cpp Plane::disarm_if_autoland_complete() · Open in ArduPilot Plane-4.7.1

Written here for Plane 4.6. In the tool you choose your vehicle and version, see your own parameter values beside the ones named here, and drop a flight log to have every message in it explained.

Open it in the Message & Error Explainer