| 摘要 |
PROBLEM TO BE SOLVED: To provide a main wing position change device for an aircraft allowing always loading a necessary load quantity without a gravity center position adjustment by a cargo arrangement and a weight adjustment during loading cargo, improving efficiency of cargo loading work, and ensuring a safe flight with an optimized gravity center position, in an aircraft mainly transporting cargo. SOLUTION: In an aircraft constructed of a combination of an independent body and an independent main wing, the aircraft is provided with a body side mounting part provided on the body in a body longitudinal direction, a main wing side mounting part fixed on a main wing and movable along the body side mounting part and lockable on a designated position of the body side mounting part, and a main wing mounting device including a lock means locking the main wing side mounting part on the designated position of the body side mounting part, and is constructed in such a manner that the main wing side mounting part is moved along the body side mounting part of the main wing mounting device and is locked on the designated position of the body side mounting part by the lock means to fix the main wing on the body.
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