| 摘要 |
An aircraft is provided having an airfoil shaped housing so as to provide lift when propelled in a forward direction at a speed greater than a stall speed of the aircraft. A forward drive system including plural jet engines (24) are mounted on the housing and arranged to generate forward thrust to drive the housing in the forward direction. A rotary propulsion system (36, 38) is also provided in the form of circular rings mounted about the housing having vanes which are arranged to provide lift to the housing when rotated. The forward drive system is coupled to the rotary propulsion system by a mechanical drive mechanism to selectively drive rotation of the rotary propulsion system by the forward thrust of the forward drive system. A thrust reversing mechanism is arranged to divert a portion of the forward thrust to rearward thrust for vertical take-off of the aircraft. |
