ABSTRACT

The full-scale development programme of the Lavi called for five flying prototypes. The first two aircraft were basically identical. The Lavi 'configuration freeze' was accomplished in October 1982. The number 4 prototype was planned to be the first, real two-seater aircraft and to incorporate the full suite of the Lavi avionics. The pilot controls the Lavi with a traditional centrestick. Control is achieved via a limited-motion position command which uses linear variable differential transformers. The 'bandwidth' of the Lavi's flying qualities is wide enough to span the various flying techniques of the Lavi aircraft's future pilots. The objectives of this simulation were to find whether the theoretical FCL design could be accepted and flown by the pilots. The main tool for flight control law (FCL) evaluation was the flying-qualities simulator. One of the major problems in developing FCL is that it involves many engineering skills, far beyond the classical control theory.