Worked perfectly fine in a previous copter (RIP) and stable mode works perfect. Altitude hold causes the copter to slowly rise and then slowly fall back to earth. Tried all the possible tuning tweaks with no result. Tried both black foam and the stoc
Had my APM 2.5 on a tricopter. Altitude hold was solid as I-Beams. A large bird attacked my tricopter and the frame was destroyed so I put the APM on a quad now. Flies great in stabilize. In altitude hold, the copter either slowly rises or falls and