[Paparazzi-devel] Problems with throttle of first Lisa/M craft

[Mattias Wingstedt]

Hi

I have built my first paparazzi craft, a hexcopter with a Lisa/M 
autopilot. However when trying fly it in AP_MODE_ATTITUDE_DIRECT I got a 
nasty surprise, the throttle did not respond when I turned down the stick.

It had a nice idle throttle when I powered on the craft, with all 
propellers spinning but not enough lift to do anything. The throttle 
increased ok when I pulled the stick up. But it did not respond as 
expected when I turned the stick down. I had assumed it would reduce the 
throttle to the idle state - instead it had more than enough power to 
lift with the stick fully down.

I am sure that it looked rather funny when I tried to catch and hold my 
home built hexacopter without hitting any propeller (I succeeded but 
could not figure out how to cut the power). But it makes me reluctant to 
try to fly again since I have zero control of the aircraft.

Any idea why it responded in this way?

Can I analyze the log files to find out what the problem may be? Or do I 
need to turn on more messages for the next flight?

I have had some trouble getting the flap and gear switches to be 
transferred from my Spektrum DX6i transmitter, which is one of the 
reasons I did not have a working kill switch. I will obviously try to 
fix this before flying again.

--
Mattias Wingstedt