20世纪二三十年代是飞艇的顶峰,但1937年5月6日的“兴登堡”号空难终结了氢气飞艇的技术路线。二战之后,充气飞艇几度试图东山再起,但总是功亏一篑。新世纪后,美国军方接连启动了好几个充气飞艇项目,其中委托英国“混合空中飞艇公司”(HAV)研制的“长航时多任务飞行器”(LEMV)已经成功首飞,但在军费裁减的大潮中被迫下马。HAV公司把LEMV买下来,运回英国,继续研发, Twenties and thirties of the twentieth century is the airship peak, but May 6, 1937’s “Hindenburg” crash ended the technical airship of hydrogen airships. After World War II, inflatable airship several attempts to make a comeback, but always fall short. After the new century, the U.S. military launched a series of inflatable airships one after another, in which the “long-range multi-mission aircraft” (LEMV), commissioned by the British “hybrid airship company” (HAV), has successfully made its first flight. But was forced to disarm in the tide of military spending cuts. HAV company LEMV bought, shipped back to the United Kingdom to continue research and development,