Stall/spin test techniques used by NASA

Unique test techniques and facilities are reported which are used to predict the stall/spin characteristics of highly maneuverable military aircraft. Three of the more important test techniques are: (1) flight tests of dynamically scaled models; (2) rotary balance tests; and (3) piloted simulator studies. Recent experience has indicated that the extension of piloted simulation techniques to high angles of attack provides valuable insight as to the spin susceptibility of fighter configurations during representative air combat maneuvers. In addition, use of the technique is an effective method for the development and evaluation of automatic spin prevention concepts.