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Message & Error Explainer

What an ArduPilot message means and what to do about it

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The landing will be flown again, and from where

InformationPlane: take-off, landing, QuadPlanePlane only

What ArduPilot says:

After a go-around, or when AUTO is left in the middle of a landing, Plane chooses where the landing starts again, in this order. “Climbing to …”: the mission item after the landing point is a climb command (NAV_CONTINUE_AND_CHANGE_ALT), which is flown first. “via DO_LAND_START”: the mission jumps back to the nearest landing marker; the number is its item in the mission. “at waypoint”: with neither, it goes back to the waypoint before the landing point and flies the same slope again.

Parameters to look at

ParameterWhat it is
RTL_AUTOLANDRTL auto land
The code that sends it

Restarted landing via DO_LAND_START: N

libraries/AP_Landing/AP_Landing.cpp AP_Landing::restart_landing_sequence() · Open in ArduPilot Plane-4.7.1

Restarted landing sequence. Climbing to Nm

libraries/AP_Landing/AP_Landing.cpp AP_Landing::restart_landing_sequence() · Open in ArduPilot Plane-4.7.1

Restarted landing sequence at waypoint N

libraries/AP_Landing/AP_Landing.cpp AP_Landing::restart_landing_sequence() · 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