| 摘要 |
An aircraft having an annular body (10), defining a central passageway (12); an upper deflector (13), a lower collector and a fluid drive (31) in the passageway. Air is accelerated by the fluid drive and circulates around the annular body (10). The collector (14) divides the circulating air and directs a portion into passageway (12) and a portion to beneath the aircraft to provide a further thrust. |
