全球最大双机身飞机亮相美国一次可发射3枚火箭_BEC初级作文

全球最大双机身飞机亮相美国一次可发射3枚火箭

机载发射可以追溯至几十年前，最著名的是上世纪50、60年代的X-15计划，当时一架B-52轰炸机的机翼下搭载了载人火箭飞机，并在超音速飞行的测试研究飞行器上发射。

In the 1990s, Orbital Sciences Corp. (now Orbital ATK) began releasing rockets from the belly of a converted L-1011 airliner to put small satellites into low Earth orbit.

上世纪90年代，轨道科学公司（现为轨道ATK公司）从一架改装的L-1011客机的机身下发射火箭，将小型卫星送入近地轨道。

More recently, Paul Allen, the Microsoft co-founder, funded development of the Burt Rutan-designed SpaceShipOne, the first privately developed manned spacecraft.

再之后，微软公司的联合创始人保罗•艾伦投资研发了伯特•鲁坦设计的“太空飞船一号”。这是第一架私人研发的载人航天器。

Suspended between the twin-fuselages of a special jet, SpaceShipOne was carried to high altitude and released. It reached space on three suborbital flights in 2004.

“太空飞船一号”由一架特制的双机身喷气飞机悬挂在机身中间，将其载入高空并发射。2004年，“太空飞船一号”经过3次亚轨道飞行进入太空。

The same launch concept is being used for SpaceShipTwo, the passenger-carrying craft being developed for Sir Richard Branson's Virgin Galactic space tourism enterprise.