Abstract: To achieve a successful transition between flight control modes, the amplitude of transients must be suppressed into an allowed extent. This paper takes a digital multimode direct force flight control system as an example, presents several transients suppression methods. The results of the hybrid simulations have shown that the present methods are successful in transients suppression and the aircraft behavior during the transitional period is satisfactory.

Key words: flight control, mode transition, transient supression, fade-over