"Merry Chrismas guys,
i've a compass issue with firmware V 3.1 on my old (standard) APM 1.4. After compass calibrating is is never showing exactly north (compared with a magnetic compass). There is a difference of approx 15 degree. 
However, i tried…"

"My APM 1.4 standard quad was grounded for two weeks after a hard crash with version 2.71 (2 engines, 2 motor mounts, 2 arms, landing gear, dome, 2 props broken). Today i finished repair and did the next flight with version 2.73 with standard…"

"What happened?
I was flying my (all standard) quad fw V 2.71 for a couple of days without problems. In my opinion that firmware version is not so smart as v 2.6, but probably good for flying around in simple mode.
Today after work i had an other…"

"Excellent!
just coming from the field. My quad (2560 APM1, V 2.6, standard Arducopter kit V 1.1, wind 8 knots, no pids tuned) was flying amazing.
I tried ALT_HOLD and RTL (without landing) and SIMPLE mode and it was a pleasure.
Throttle stick feels…"

"Today i tried to fly my standard quad in simple mode with fw 2.41 from Mission Planner 1.1.42.zip.
Behaviour for throttle in completly different to earlier firmware versions. For lift off, i need about 80% throttle. After the quad is in air, usually…"

"Quad seems to be "bullet proof" with Jasons 2.049 firmware.
Have a look to the pic. Even with such a prop it was possible to land the quad in one piece.
 
What happens? My first flight with fw 2,049. Was flying in simple mode (ch #7), The quad act…"

"Now a sonar is installed. I've tried ALT_HOLD and LOITER and in my opinion it was working well.
Next will be trying my first mission (NUE airport predicts a calm wind in afternoon).
Wiki is saying about the LAND command: "If you have Sonar, the…"

"I just played a little bit with an USB hub. When connecting the copter to the hub, its not recognized. So i connected it to my notebooks USB port and used the hub oanly for powering the receiver. It seems to work. Mission planners setup reacts on my…"