The new method of engines behavior in exploitation and flight manuals explanation for
aviaspecialists on the base of well-known (from secondary and professional school) working principles of engines and some physical laws is suggested in the paper. Examples for D-30, AI-24, ASH-62IR, M-14V26 are described. This method was used in LCTAS (formed UTO-7) and in Bielarusan National Technical University.