Anonymous - 2014-12-30

Correct. I can't spend much time reviewing the documentation right now, but I can say this: The equations of motion were derived largely (even exclusively) from Stevens and Lewis. I believe the equations were interpreted and documented correctly. It's possible that there is a mistake in notation. The equations of motion for JSBSim are integrated in the inertial frame and all other transformed values are derived from the inertial frame values.

As far as implementation goes, I believe the EOM is rock solid. Earlier this year I spent considerable time comparing results with 5 NASA simulations in controlled scenarios, and the results showed exact or very close matches with those simulations in key dynamic parameters.

I will leave this one open for the moment in case anyone else has a comment. As time permits, I will try and review the documentation for accuracy.

Thanks for your attention to detail and your report!