The Aero L-29 "Dolphin" is a Czechoslovak training aircraft that made its first flight in April 5, 1959.

1959年4月5日，捷克斯洛伐克教练机l - 29海豚首飞。

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The rocket made its first flight in 2004 and is capable of launching payloads of up to 24 tons into low-Earth orbit and 11 tons toward the geosynchronous orbits used by communications satellites.

重型火箭在2004年进行首次发射，它可以将24吨重的负载发送到低地球轨道，也能将用于通讯卫星的11吨重的载荷送入地球同步轨道。

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The world's first jet-propelled aeroplane, with engine designed by Dr Von Ohain, made its first flight, at Marienehe in North Germany.

世界第一架喷气式飞机在德国北部的马里奈赫作第一次飞行。飞机引擎为冯·奥海因博士所设计。

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The results of the two short flights made space officials believe the Mercury program was ready for its first orbital flight.

VOA: special.2009.06.17

In 1971 the company changed its name to Southwest Airlines and made its first flight in June of that year.

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In 1968, Russia's TU-144 supersonic airliner made its first flight, several months ahead of the Anglo-French Concorde, which it closely resembled.

CNN: Tuesday,

China's L-15 made its first flight in 2006, and was displayed for the first time overseas at the Dubai air show in 2009.

WSJ: China Eyes U.S. Defense Contracts