Warning EKF Ground Mag Anomaly Message?

[Corrado_Steri]

For compass/motor if it is a big bird you can do it in flight. We have done it and it is really handy.

Testers needed for in-flight compass learning

[image] I would like some testers for a new ArduPilot feature - in-flight compass learning. This is a feature that was originally developed for the SkyViper quadcopter, but can work with a wide range of vehicles (planes, copters, helicopters, rovers, boats etc). It avoids the need to do a compass calibration dance, which is particularly useful for large vehicles. The pull request is here: I am also happy to provide pre-built binaries if you let me know in the comments below what flight c…