Hi,
I have a ardupilot 2.5 powered quad, with 3DR Power module, 3DR 433 telemetry and lea6 gps, BL-2217/19 motors, turnigy plush 25 sc's and 2200 3S lipo turning 10 x 4.3 props. All calibrated and first flight was lovely, test stabilize, position hold and altitude hold very impressive. Flew for about 8 mins on Fri 30th Aug. Both yesterday and today both my flights ended after about 2mins 30seconds with a violent flip and an inverted crash from a couple of meters high.
I have attached my tlogs and datalogs and wondered if someone could advise what they think could be the problems. I have spend most of the day reading up and analysing logs but i dont fully understand what im looking for and i do appreciate the time anyone can spend helping me.
Im thinking this could be power related and wondered if it is possible to power the AP with a 4.8v 4cell NiMh pack but still monitor the lipo voltage using the 3DR power module???
Many thanks in advanced
Tony
Replies
I noticed your voltage dropped to 9.2 volts at one point with a current up around 36Amps.
Have you disabled the low voltage cut offs in your ESC's?
This is just the most obvious reason I see at a quick glance.
tlog 2013-09-02 18-51-38.tlog - flipped at 18:57:26 (49.22% of time)
tlog 2013-09-01 17-59-54.tlog - flipped at 18:04:49 (92.36% of time)
Thanks
This is the data log from today.
2013-09-02 19-31 7.log