| 摘要 |
Disclosed is an air vehicle (Z) comprising a vehicle body (1); hollow fan ducts (3A-3D) supported to and elongating through the vehicle body at least at its foreside and rear-side locations, respectively. Each fan duct communicates with air at top and bottom of the vehicle body and has a fan (9A-9D) at a top opening (6). The air vehicle further comprises rotary engines (11) each installed inside of each fan duct to rotate the fan. In a preferred embodiment, a cylinder (13) of the rotary engine is mounted to a supporting housing (25) of the fan duct via elastic means (29) which may be fitted to a boss structure (26) of the supporting housing. Each fan duct is tiltable to any directions. Preferably, the fan ducts comprise a pair of front fan ducts (3A, 3B) and another pair of rear fan ducts (3C, 3D) supported to the rear-side of the vehicle body, and the rotary engines in diagonally located fan ducts (3A and 3D; 3B and 3C) are driven to rotate in the same direction.
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