| 摘要 |
An aircraft ( 10 ) comprises a wing ( 12 ) having an upper surface ( 16 ) and a lower surface ( 18 ) and at least one turbofan gas turbine engine ( 20 ) mounted on the wing ( 12 ). The axis ( 34 ) of the at least one turbofan gas turbine engine ( 20 ) is arranged substantially in the plane ( 14 ) of the wing ( 12 ) of the aircraft ( 10 ). The at least one turbofan gas turbine engine ( 20 ) has an intake, the intake comprising a hollow member ( 44 ) rotatably mounted coaxially with the at least one turbofan gas turbine engine ( 20 ) such that in use the hollow member ( 44 ) is rotatable between a first position, a low-speed condition, in which air flowing over and/or above the upper surface ( 16 ) of the wing ( 12 ) flows into the intake of the at least one turbofan gas turbine engine ( 20 ) and a second position, a high-speed condition, in which air flowing along and/or below the lower surface ( 18 ) of the wing flows into the intake of the at least one turbofan gas turbine engine.
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