[Flightgear-devel] External FDM to protect propriety data in a GPL eviirenment

[Alan T. <ajt...@v-...>]

I have been working, for several years now, on an accurate TSR2 simulation.

I have access to original and very detailed aerodynamic data, and the resulting JSBSIm  FDM closely matches the limited flight test data that I also have. To give you an idea of the complexity, my JSBsim aero file is 139k, and includes engine effects on flap blowing , inertia and weight changes with load/fuel, and covers the full flight envelope. On approach and landing It is still not an easy aircraft to fly, but is otherwise OK. Terrain following, toss bombing and most systems work as per the original specification and crew notes.

However there are problems with releasing the aero data.. The owners of the data are happy if I simplify the data, but not if I publish it all as is. My projected solution is to make an external FDM using a cross-platform compiled language such as java and use this.

What views do the project leaders have regarding this idea?

Alan