随着超声速越空运载工具的发展,可能在某一天,从纽约到东京,飞行2小时不再是梦想了。这种飞机和通常用于非常规运行的宇宙飞船一样,按常规均要面对空气动力学牵引和加热问题。早在1990年,研究人员首先造出一个新术语“定向能空气火花”(DEAS),描述通过把能量加给运载工具前的空气来减少牵引和加热的方法。实现这种方法的一个途径是把高能激光束聚焦到航程前端。 With the development of supersonic Launch Vehicle, it may be some day, from New York to Tokyo, flying 2 hours is no longer a dream. As with conventional spacecraft, which is commonly used for unconventional operations, the aircraft is routinely faced with aerodynamic traction and heating problems. As early as 1990, the researchers first created a new term, “directed energy air sparks” (DEAS), to describe a method of reducing traction and heating by adding energy to the air in front of the vehicle. One way to achieve this is to focus the high-energy laser beam to the front of the range.