It was clipped from an old faded Poloroid taken while it was parked at RDU airport and the landing gear was not visible in the SUNS shadow - hence no landing gear on the otherwise fixed gear aircraft.

它是从旧的已褪色的Poloroid照片剪贴下来，当时它停在RDU飞机场而且起落架在太阳阴影下看不见-因此在固定齿轮飞机上没有起落架。

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Following the fuel testing the aircraft is undergoing structural coupling and ground vibration testing, as well as completing hydraulic testing of the doors and landing gear.

此次燃料测试后，飞机将进行结构耦合和地面振动测试，并将完成门和起落架的水压测试。

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Jack heard the engines straining to keep the aircraft aloft. Then they cut out and the wheels slammed onto the runway, too hard for the landing gear to support the impact.

杰克听到发动机悲鸣着尽量让飞机滞空，突然声音消失了，轮胎重重落在跑道上，巨大的冲击力令起落架不堪重负。

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Similarly, the origins of the microwave oven (an offshoot of radar), the folding baby buggy (the brainchild of a test-pilot inspired by aircraft landing gear) and traffic lights (one of the first of which exploded outside the Houses of Parliament) are not widely known.

ECONOMIST: Encapsulating a century in gadgets

These days GE sells aircraft engines and power-generation gear to the government.

FORBES: Magazine Article

The FAA said it issued an AD requiring airlines to inspect Airbus A320 aircraft for possible cracking of a landing gear part.

CNN: US Airways, United face FAA fines for safety violations