图中展示的是波音概念机IConⅡ模型,它正置身于NASA Glenn研究中心的风洞里进行测试这是NASA正在进行的超音速客机研究的一部分,这—研究项目一旦完成,将有望在2035年之前将超音速客机送上天空。此前也有超音速客机投入使用,如“协和”号飞机。但由于“协和”号的超高分贝噪音和声爆问题,很多国家不允许其在领土上空以全速飞行,因而只能用于跨洋航线.如从伦敦到纽约的跨大西洋飞行,这极大限制了协和飞机 Shown is the ICon II model of the Boeing concept machine, which is being tested in a wind tunnel at the NASA Glenn Research Center as part of NASA’s ongoing study of supersonic passenger aircraft, which, once completed, will be expected by 2035 Before the supersonic airliner to the sky. There have been supersonic passenger aircraft, such as “Concord ” aircraft. However, due to the UHF noise and sound explosion problem of “Kyowa ”, many countries do not allow them to fly at full speed over their territories and thus can only be used for transatlantic flights, such as transatlantic flights from London to New York. Great limit to the Concorde