[Flightgear-devel] Century IIB autopilot modeled

[dave p. <ski...@mi...>]

The real N7764P (pa24-250) has a Century IIB autopilot, not the KAP140 
that is in the fgfs Comanche in cvs.

I found a pdf of the pilot's operating handbook for this autopilot on 
the internet and have modeled this autopilot and replaced the kap140 in 
my local version of fgfs.  This autopilot does not have a pitch axis 
control.  It is a precursor to the Altimatic IIIc that is in the SenicaII.

The model is complete in that it behaves as the documentation describes 
and as the real Century IIB behaves in the real AC.  I actually find the 
approaches I do with this autopilot more precise than with the kap140.

Question to anyone that uses the fgfs pa24;  does the increased realism 
of the Century IIBoffset the loss of the pitch and altitude capture of 
the kap140 for this model?  I would like to "update" the pa24 in cvs 
with this autopilot in place of the kap140.

In working on this AP model, I noted that the model in the SenicaII for 
the Altimatic IIIc is not finished.  The approach I used to implement 
the "roll knob" function when in ROL mode would work very well for the 
Altimatic IIIc.  Torsten, if I can find a pilot's handbook for the 
Altimatic IIIc, I would like to complete that model for the SenicaII.  
Between the approach to handling the "coupler mode selector" and the 
"roll knob" and the kap140.nas from Vegard Ovesen, this should not be 
more than a few evenings work.  Any problem with contributing to you 
fine model?

Regards,
Dave Perry