In this paper, an almost new control approach called terminal synergetic control which works based on user defined manifold is applied to a nonlinear helicopter model. Stability analysis is convestigated using Lyapunov stability theory. Synergetic controller is applied to this nonlinear fifth-order helicopter model to control height and angle. Simulation results showed that it has faster and sm...

This paper presents the problem of designing the functional behaviour of the interaction between two side stick con trollers an autopilot and a ight control computer in a y by wire aircraft Two models are developed using the ISO formal description technique LOTOS and analysed us ing rigorous abstract testing techniques