ORLY: A digital computer flight simulator

ORLY is an all-digital computer flight simulation system designed for both visual and instrument flight training. The system features real-time operation with a trainee and an instructor at the controls, and includes facilities for varying flying conditions and for recording the trainee's performance for later evaluation. In addition, the system is constructed in a modular fashion so as to easily permit experimentation with different flight models, instrument configurations, training techniques, and the like.