| 摘要 |
PROBLEM TO BE SOLVED: To ensure more stable flight over the entire speed region from the rear side to the front side of the fuselage by providing a lattice wing where a plurality of planar wings intersect to form a lattice and turning or locking the lattice wing when the detected flight speed of the fuselage is close to zero. SOLUTION: A lattice wing 35 where a plurality of planar wings intersect to form a lattice is provided at the rear part of a fuselage 4. A set of the lattice wing 35 comprising four wings and a set of steering wing 36 comprising four wings are fixed, respectively, to the outer circumference of the fuselage 4. A lattice wing rotary unit 34 for turning or locking the lattice wing 35 is provided for each lattice wing 35. When the flight speed drops below a predetermined speed reference close to zero and reversal of flight speed from the rear side to the front side of the fuselage is detected, the lattice wing rotary unit 34 turns the lattice wing 35 based on a command received from a decision circuit. Consequently, individual planar wings of the lattice wing 35 are exposed to gas flow and generate a lift thus ensuring static stability of the fuselage 4 on a flight course.
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