The present research was conducted to determine transfer of practice from a formation simulator to actual aircraft flight for the wing aircraft component of the formation flying task. Evidence in support of positive transfer was obtained by comparing students trained in the formation simulator with students who were essentially untrained and with students trained in the aircraft. This design provided data for a direct comparison of five simulator sorties with two aircraft sorties in an effort to quickly establish a training cost/transfer comparison. The results indicate that the simulator has at least the training effectiveness of two aircraft sorties. (Author/JB)