Arduplane Not holding Altitude

My APM does not hold altitude in FBWB and does not rise to 100 metres in RTL (in fact it Falls in altitude in both cases). See attached TLog and param file.

RTL Location in Tlog Attached : 49% - 56% -: You can clearly see the altitude go from 50 metres to 15 where i had to enable manual again. RTL altitude is supposed to be 100 metres.

FBWB Location in Tlog Attached : 41% to 44% You can clearly see the altitude go from 30 metres to 8 where i had to enable manual again. FBWB is supposed to hold it's altitude.

Something fundamentally is wrong here - ALL calibrations are complete.

Can someone help please ?

2014-06-18 20-27-37.tlog

ArduPlane-Penguin-1.0.1.param

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Replies

  • Would it be possible that this is caused by never completing automatic tuning ?

This reply was deleted.