"Thissounds like you got to slow...so the question is why. Did you do a turn and lost speed, is it too heavy for flying slow, did you in a turn carefully mix aileron with lift etc. I found on my fx-61 phantom it needs much more speed than my…"

"Use stabilize or fbwa, 70% throttle and slight Elevator, 2-3mm max typically.

Go back to Manual for trimming once you are secure in the air. fbwa is a nice start mode typically as it controls the angle well and avoids stall."

"Skywalker with 1880 wings in my view. maybe skycruiser, but It has a lot of wing area and might react to wind a lot. maja is said to be not so nice in stall behavior. maybe skyhunter as well."

"Well, at the same time I specified 30 meter min altitude...but on the ground cruise is not starting the engine...tried that."

"thats a great hint, did not know this...but what happens after fullfilling launch ? Will it go into cruise or rtl after achieving target altitude ? Besides the launch itself the mission would be empty as I launch at different places..."

"Ok, I tried cruise today...nope...no start possible in that mode, simply no throttle..."

"Auto-Take-off Needs a Mission. Currently I am flying without a Mission and as well without a PC in the field, let alone any Internet Connection for Google earth. I am thinking of something verysimple which brings the bird into the air without a…"

"I am curious...is this still an open issue ?
http://code.google.com/p/ardupilot-mega/issues/detail?id=569

BEcause I had today the same phenomen:

With Airspeed-Sensor enabled (why would you otherwise want one ? Buy it, build it in and than discable…"

"Very intersting...but how does it come that people report that they could revitalize their boards by exchanging the reg ?

Here is a huge thread on a german forum, maybe google translate helps out…"