I. INTRODUCTION
Control of the attitude dynamics of a right body in the
presence of the gravity is an important and practical control
with several applications. We proposed a new control strategy
for attitude control of helicopter under the assumption that all
the parts are rigid[ 1]. In this paper, we address one solution
for control problem, in particular in the task of forcing the
attitude of a rigid body flight vehicle to asymptotically track a
desired reference model. Also in many research works, there