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His submersible designs have fixed wings and sleek, elongated fuselages, like those on an aircraft.

潜艇的设计含固定的机翼和光滑细长的机身，和飞机一样。

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The gyroplane also is different from the airplane. It depends on the rotors to produce lift. It has no fixed wings, or has assistant wings.

旋翼机与飞机也不同，它主要靠旋翼产生升力，而没有固定机翼或只有辅助的机翼。

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Unfortunately, because they lack fixed wings to help provide lift, they are also expensive to operate.

ECONOMIST: Monitor

The simplest option is to scale down the existing standard of a fuselage with two fixed wings and a tail.

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Rather than use fixed turbines to generate power, Makani has been experimenting with "flying wings" adorned with several smaller turbines that act as propellers as the craft takes off.

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