JSBSim is an open source flight dynamics model used by FlightGear. The
project web site is at www.jsbsim.org.

I wanted to mention that we put out a quarterly newsletter of general
interest with some technical content. You might want to have a look at the
current (and previous) issues.

Best wishes,

Jon S. Berndt
JSBSim Project Coordinator
www.jsbsim.org