Hi Folks,
I am working in a university lab, for a PhD student, and we are currently using APM for charactering an non-standard airframe. The airframe we are working on experiences quite a considerable amount of Dutch Roll when exiting a bank.
Here are my queestions:
1. Is it possible to simply add a few lines of code that would allow yaw dampening in APM? I know that APM uses rudder to coordinate turns, but I need it to apply opposite rudder, to direction that the yaw gyro experiences. I know Micropilot and Picolopilot have it, but our micropilot doesn't fit in our airframe.
2. How hard would it be to increase the memory for datalogging? it seems that each time we make it out to the field to test, we lose a lot of data due to the log memory being full.
Thank you very much,
Willem
Replies
Chris, the log wil only allow "weeks" of recording if the APM is turned off - LOL.
The length of time is obviously dependant on what set of messages you are recording. Different messages are different length, and are logged at different intervals. I typically log CTUN, NTUN, GPS, MODE, and CMD, and the log space is somewhere around 45 minutes for that message set.
Thanks a lot, Chris!
I will let you know how it turns out
1) That would be pretty easy. A quick way to do it would be in the Set_Servos routine of the Attitude tab.
2) Are you erasing your log memory before going to the field? It's a 16MB chip, which should allow for weeks of continuous recording. Once you download your logs, you should clear the memory: CLI: logs/erase