@Brodo wrote:
Hi friends.
I’m trying my first quadplane build. Since I’ve been expecting trouble I am testing the copter components on a piece of timber the same weight as the plane fuselage while the fuselage is packed away nice and safeIf I load the copter firmware and do the minimal setup (H quad frame, radio, compass, accel) the contraption hovers and behaves fine.
However when I load the plane firmware and enable Q_ENABLE, set Q_FRAME_TYPE and the other basic setup (plus shifting the servos from 1:4 to 5:8) it oscillates wildly in pitch and I can’t even take off.
I’ve tried 4.1beta and the stable 4.0.9 release of plane with the same results. I initially had the autopilot at YAW_180 so I even tried physically rotating it as well as setting the rotation back to None in the configuration but none of this has made any difference.
I see quadplane works for the rest of you so there must be something dumb I am doing. Here are my params:
https://ozforecast.com.au/temp/plane-bad-20210618.paramsHere’s a log file with two (brief) attempts at taking off:
https://ozforecast.com.au/temp/log_35_2021-6-18-18-57-52.binThe only thing that is a bit odd is I get “Compass 2 not found” even though it is visible in the GCS and calibrates fine, so I have had to disable the prearm compass check. However I am trying to fly in Q_STABILIZE and also I get this complaint about the compass in copter and it flies okay, including in GPS modes.
Sincere thanks in advance.
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