On Sunday 11 October 2009 14:04:19 Kishore wrote:
>
> Not having a common time base reference for the various subsystems can lead
> to varying performance based on the underlying hardware on which flightgear
> is run. The PID/Autopilot tuning for a given model should not vary based on
> the hardware on which flightgear is run.  Should it? Or did I get this all
> wrong?

The autopilot code "compensates" for varying frame rate by using the 
delta-time between frames in the calculation of the PID-controller output. 
Without this I believe that the autopilot would have been quite unusable.

-- 
Roy Vegard Ovesen

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