To obtain a guided flying object which can secure a stable flight in all speed areas to the front from the rear of an air frame in comparison with the conventional type utilizing a propulsion deflector and an aerodynamic characteristic changer only.

A stabilizer 33 rotatable about a hinge shaft disposed at a position of weathercock stability is arranged at the rear part of an air frame so that the stabilizer 33 secures weathercock stability to generate no dynamic lift while a guided flying object 32 separated from a mother plane is flying backward from the air frame. Then the flying velocity is down near zero, the stabilizer is fixed. Thereafter, when the guided flying object 32 flies forward from the air frame, a dynamic lift is generated on the stabilizer.