正处于飞行试验的诺斯罗谱公司的B-2轰炸机和已公开飞行的洛克希德公司的F-117A战斗机的照片说明,尽管它们在外观上有很大差别,但却都采用隐身技术。迄今官方公布的这张唯一的F-117A战斗机照片中,机翼后掠角多半是进行了伪装,凶为根据这张照片绘制的三面图表明,该机的翼展大于其长度,其翼后掠角约40°～45°。一旦观察并拍摄到F-117A在白天飞行情况,就能清楚地知道其机翼的真实后掠角和平面 Photographs of the Northrop Grumman B-2 bomber and the publicly-flown Lockheed F-117A fighter pilot in flight tests show stealth technology in spite of their large differences in appearance. The only official F-117A fighter jet image so far published shows that most of the wing sweeps were camouflaged, according to a three-dimensional map drawn from this photograph showing that the wingspan of the aircraft is greater than its length, Swept angle of about 40 ° ~ 45 °. Once the F-117A is observed and photographed during the day, the true sweep angle and plane of its wing are clearly known