PURPOSE: To enable taking a wide range of an attack angle of a missile without limit of a stalling angle of the main wiring by providing main wings sliding in the direction of the axis of by means of a compressed air type longitudinal driver provided in the body and small wings disposed at the head in a manner that steering angles are variable.

CONSTITUTION: Small wings 4 are steered by a small wing driver 9, and main wings 3 are moved longitudinally at a necessary amount through a main wind longitudinal driver 7 with a compressed air type longitudinal driver 5 according to a control command signal necessary to be generated by a control instructing unit 6. The wings 4 are steered in a state that a missile is started to be guided to generate a vertical force F3 at the wings 4 to generate a head raising moment around a center of gravity, thereby altering the attack angle of the body. Thus, a vertical force F1 is generated at rear wings, and a vertical force F2 is generated at the main wings. At the time of guided flying, the wings 13 are longitudinally slid a necessary amount to alter the amount of moment generated around a center of gravity X by the force F2 to be applied to the main wings, thereby flying while varying the balanced attack angle of the missile.