为了探索高速民用运输机所需要的推进技术,由日本牵头研究的缩比涡扇发动机已在GE公司的设备上进行了试验,此次试验是在模拟高度为20117米和M2.5的飞行状态下进行的.试验于1996年12月6日在GE公司的高空设备上开始进行,到12月19日达到M2.5和高度20117米的状态,正好在圣诞节前中断试验.今年1月初重新开始试验,1月底结束.试验中发动机在高度2O73O米下模拟了M3的飞行速度.该发动机运回日本进行分解和检查前预计累计试验约70小时. In order to explore the propulsion technology required for high-speed civilian transport aircraft, a Japanese-led scaled turbofan engine has been tested on GE’s equipment at a simulated flight altitude of 20117 meters and M2.5 The test was started on GE’s high-altitude equipment on December 6, 1996, reaching a state of M2.5 and a height of 20117 meters on December 19, just before Christmas, and the test was resumed in early January of this year The test, which ends at the end of January, tested the flight speed of the M3 at a height of 2,073 meters and expected to accumulate about 70 hours before being returned to Japan for decomposition and inspection.