1966年和1974年,划时代的轰炸机在美国进行了首次飞行,轰动了国际航空界。这就是1966年的神婢(Valkyrie)B—70和1974年的B-1。作为B-52的后继机种的这两种新型超音速有人驾驶轰炸机轰轰烈烈问世了,但是神婢在试制了两架之后,由于中止计划就消声匿迹了;B-1在试制三架之后,由于卡特总统的阻拦也中止了计划。试制中的第四架才勉强完成。然而,里根执政以后,一改前任的施政方针,再次展开以巡航导弹运载 In 1966 and 1974, epoch-making bombers made their first flight in the United States, sensationalizing the international aviation community. This is Valkyrie B-70 of 1966 and B-1 of 1974. The two new supersonic manned bomber aircraft, the successor model to the B-52, were exuberant. However, after the trial of the two models, the Divine Comedy disappeared due to suspension of the plan. After B-1 trial three, The plan was also suspended due to the blockage of President Carter. Trial production of the fourth frame barely completed. However, after Reagan came to power, he changed his predecessor’s administrative policy and started to carry cruise missiles again