隐身飞行器是当前军事研究和评论的热门课题,美国十分重视这方面的技术开发,为人鲜知的是其已经历了整整30年,现正步入第四代。美国的第一代隐身飞行器要追溯到SR-71战略侦察机。该机以高空、高速作为突防手段,曾创多项世界纪录,其隐身技术是在飞机表面涂覆吸波涂料以逃避对方雷达的跟踪。美国的第二代隐身飞行器以F-117A为代表,采用吸波材料制成的多面体结构的机身散 Stealth aircraft is a hot topic in current military research and commentary. The United States attaches great importance to technological development in this area. What people know well is that it has gone through a full 30 years and is now entering the fourth generation. The first U.S. stealth aircraft to go back to SR-71 strategic reconnaissance aircraft. The aircraft to altitude, high-speed as a means of penetration, has hit a number of world records, the stealth technology is coated on the surface of the aircraft absorbing coating to avoid tracking each other’s radar. The second generation of the United States stealth aircraft to F-117A as the representative, the use of absorbing materials made of polyhedral structure of the body scattered