| 摘要 |
PROBLEM TO BE SOLVED: To alleviate an air resistance by a nozzle, and control an attitude of an airframe body while changing a flying speed from rearward to forward of the body by providing a means for covering the nozzle when an aircraft is carried and altering a gas injecting direction of the nozzle after separating from the aircraft to propel and deflect itself. SOLUTION: Several plate-like covers A11 are provided at a rear end of a propulsion device 4. The guided airframe 1 covers a nozzle 5 by a plurality of plates of the covers A11 to close the nozzle 5, thereby reducing an air resistance. After the airframe is launched from a mother aircraft and the device is ignited, the covers A11 deflect a thrust force by an operation of a controller 9 and an actuator 10. For example, if the airframe 1 tends to fly near zero of a relative speed to an air stream and formed at an angleαto an air flow velocity vector Vair, when the cover A11 is rotated in a directionγ, a gas injection direction of the nozzle 5 is deflected by a thrust force F1 of an angleβ, and its perpendicular direction force Fly becomes a rotary force moment for canceling the angleα.
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