装备大离轴角近距空空导弹的战斗机,飞行员只有配备头盔瞄准/显示系统才能具有“看到就打”(look-to-shoot)的能力,达到先发制人的目的。最简单的头盔瞄准具采用发光二极管产生的十字线对准目标,导弹的导引头就会指向目标,而复杂的头盔瞄准具把阴极射线管(CRT)产生的图像投影在飞行员护目镜上,不仅显示瞄准符号,而且显示飞行数据和火控数 Equipped with fighter aircraft with large off-axis angle close-in air-to-air missiles, pilots can only have the look-to-shoot ability of pre-empting if equipped with a helmet targeting / display system. The simplest helmet sight uses a crosshair made of light-emitting diodes to align the target, the missile’s seeker points to the target, and a sophisticated helmet sight that projects a cathode ray tube (CRT) image onto the pilot’s goggles, Not only a sighting symbol but also flight data and fire control numbers are displayed