I recently did a full reset and re-setup on APM2.5 and everything is fine except....something a little odd but it only happens in ALT_HOLD - if I try pitch forward the quad drops like a stone and if I pitch backward it climbs like crazy, almost like pitch is mixed in with throttle? If I stop pitching forward then there's a slow recovery to original height, same for pitching back. I reset and did the whole setup from scratch again but it's still there? Weird...
did you check radio calibration if all the channels respond like they should?did you reconnect motors in a different way maybe?is it x or +?
Everything else is fine, nothing else was changed, quad flies great and it's always been setup X.
I flew 26 minutes today, some hard and fast, other times slow and controlled, RTL, LOITER etc. Just in ALT_HOLD it drops FAST when trying to fly forward and climbs hard when flying backward, very strange.
sonar is strange fellow,is it on or off'
No sonar, never had, just checking the logs now to try figure it out
Randy and leonardth might know but i dont see them lately...where are you dudes?
maybe you uploaded wrong firmware,maybe is hexa not quad?go to terminal and check...
Terminal says ArduCopter V2.9.1b, firmware uploaded was Quad X, where do you see hex?
nowhere,but behavior like that is similar like once i uploaded wrong firmware...sorry i just try to help with ideas,i am not any better expert than you....