Hi All, I have tuned my APM (without airspeed sensor) in a Skywalker for good FBW_A flight according to the documentation. Roll control is crisp, maintains ~45% on full-stick and doesn't lose altitude. I have also done a number of AUTO missions successfully (some several km's long). I've now added an airspeed sensor and with no changes besides enabling airspeed, FBW_A is behaving badly. Entering…