2005年2月4日,在爱德华空军基地,波音公司的2架X-45A无人机进行了第50次试飞,并首次在飞行中模拟了作战任务。这次试验被称为“停火执行者”。它们起飞后分别爬升到7 423米和7 726米高度,前后相隔约40千米,飞行速度416千米/小时,在演习空域执行作战巡逻任务。收到警报后, On February 4, 2005, at the Edward Air Force Base, two X-45A UAVs from Boeing conducted its 50th flight test and the first flight-based simulation of combat missions. This experiment is called “ceasefire performer.” After taking off, they climbed to 7 423 meters and 7 726 meters respectively, with an altitude of about 40 kilometers and a flying speed of 416 kilometers per hour. They conducted operational patrol missions in the airspace of the exercise. After receiving the alert,