| 摘要 |
PROBLEM TO BE SOLVED: To rationalize a characteristic of intake inner flow with respect to horizontal angle generated by an elevation angle of an airframe, and improve motility of an airframe by forming both side walls of a lamp part of an intake on a variable side wall capable of changing a shape, in a flight body provided with the intake aslant to an airframe attitude. SOLUTION: A supersonic intake 2 of a flight body is arranged aslant to an airframe attitude and in parallel with a center line of an axis of an airframe, and both side walls of a lamp part 3 of the intake 2 are formed as a variable side wall 4' capable of changing a shape. Namely, a triangular side wall 4a is disposed on a surface 10 including a perpendicular line 8 to the lamp part 3 in both side ends of a cowl 7 of the supersonic intake 2 and both side end edges 9 of the lamp part 3. A rack 12 is disposed on a rear end edge of a cut out part of a rear part of the side wall 4a, and a gear 13 disposed on an output shaft of a motor 11 is engaged therewith, and the side wall 4a is taken in and out by driving of the motor 11. The motor 11 is controlled so as to set a total pressure recovery ratio in the intake and a flow rate to a proper value, when an airframe takes an elevation angle.
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