JSBSim is a multi-platform, general purpose object-oriented Flight Dynamics Model (FDM) written in C++. The FDM is essentially the physics & math model that defines the movement of an aircraft, rocket, etc.
JSBSim is the most popular Windows, Mac & Linux alternative to MScSim.
JSBSim is the most popular free alternative to MScSim.
- JSBSim is Free and Proprietary


