Hello Powerbox folk
A well flown model with a unmodified gyro settings and mechanical set up has suddenly shown very strong roll axis oscillations in rate mode only. The gain settings were set at 66%, boost 0, or there abouts on all axes, boost 0 and speed factor 4. This set up has been flown many times.
I initially thought this might be a GPS v1 sensor fault. This was replaced with a new GPS v2 and gain calibration flights made. The 'fault' is still there - the maximum gain on ailerons is only 10% with 66-68 % on elevator and rudder. Boost 1 on all axes. Tests only done in rate mode.
How can this suddenly happen? Is there a sensor fault?
This is similar to another iGyro unit I had in a different airframe- again I though it was a GPS v1 unit problem. Replacing did not fix the problem although the symptoms were not exactly the same.
Should I send both devices back for a check?