JSBSim – Open-source, multi-platform flight
dynamics model (FDM) written in C++ with a Python wrapper.
JSBSim documentation –
Reference manual including the Python API.
PathSim – Block-based, time-domain system
simulation framework in Python.
PathSim documentation – Tutorials, API reference, and
examples.
PathView – Browser-based graphical editor for PathSim
block diagrams. Export diagrams as Python scripts.
pathsim-flight – Flight-dynamics blocks
for PathSim, including a JSBSim wrapper and the International Standard Atmosphere.