Athena Vortex Lattice out of MIT is a great command line tool for analyzing the stability and control of an aircraft.  In developing the S&C for my senior design project I want to use AVL and Matlab together so for the past several hours I have been working on a matlab program that creates AVL models, tests them using AVL, and then loads the results data back into matlab.  The most basic version is now working (no control surfaces yet), but along the way there were some interesting bugs…