为满足美国陆军对付超低空飞行的反坦克直升飞机,英国宇航公司对履带式长剑地对空导弹系统进行了改进,用来作为地对地反装甲武器。作为地对地武器,弹上装的是半穿甲触发引信,而不是作为地对空武器时所用的近炸引信,这样就可避免由于地面杂波干扰而使导弹过早地爆炸。除此,导弹系统未有任何变化。 To meet the US Army’s anti-tank helicopters that deal with ultralow-altitude flying, British Aerospace (BAF) improved the crawler-to-ground SAMA system as a ground-to-ground anti-armor weapon. As a ground-to-ground weapon, a semi-armor-piercing fuze is used instead of a near-fuze used as a ground-to-air weapon to prevent the missile from prematurely exploding due to ground clutter interference. In addition, the missile system has not changed.