Re: [Jsbsim-devel] IC vcas

[David C. <dav...@co...>]

On Thu, 12 May 2011 15:58:24 -0400
"Bill Galbraith" <bi...@be...> wrote:
> Unzip the attached file under the JSBSim/aircraft/c172x, and execute the
> following command:


Thanks Bill,  I adapted that to the P-80 model to avoid torque, and it results in a nicely trimmed airplane at 5 seconds and at 10 seconds after trimming.  

One thing I'd never noticed is that if you put in a crosswind, the airplane will trim cross-controlled to keep the fuselage aligned with the desired psi angle. (This was the only way I could force a non-zero v-aero-fps value, and it was a correct value for the conditions.)

The v-aero-fps I'm getting in FlightGear must be coming from somewhere else.  I think the model is not getting initialized or trimmed properly in FlightGear for the in-air state.

Dave