In the 1960s and 1970s, most personal and corporate planes were propeller or turbo-prop aircraft, which fly at a lower altitude than jetliners.

在1960和1970年代，大部分个人和企业的飞机是飞行高度低于喷气式飞机的螺旋桨式或涡轮螺旋桨式飞机。

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The conventional theory of propeller design is mainly for large aircraft.

常规的螺旋桨设计理论主要是针对大型飞机的。

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The result shows that the traditional estimation methods about powerplant performance are adapted for propeller aircraft even if with small sized piston engine and propeller.

研究结果表明，传统的估算方法对于装小型活塞式发动机的螺旋桨飞机也是适用的。

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But this propeller-driven aircraft is bright white with a black iron cross and the red,yellow,and black flag of the German Luftwaffe on its side.

VOA: standard.2010.07.27

Merpati, an Indonesian airline, has been in dispute with a Chinese supplier over its contract to buy 15 propeller aircraft.

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When I was a kid, my first airplane ride was in a propeller aircraft painted to look like an eagle and piloted by my father.

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On propeller driven aircraft, balloon-like devices attached to the wings and tail are inflated and deflated with air from the engines, breaking up any ice accumulation.

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