FliteTutor is currently merely a concept for an interactive training enhancement to the free flight simulator FlightGear, the purpose will be to provide basic tutorials within FlightGear about its general usage and also specific topics. (check homepage)
GTEngine was started by members of the Game Tutorials web site, www.gametutorials.com, to bring together the various talents and levels of knowledge in the creation of a 3D game engine, and to foster our continued learning in a specific project.