The LTV A-7 Corsair II completed up being a light assault aircraft in line with the F-8 Crusader. The A-7 ended up being among the list of main combat aircraft to feature a head-up display (HUD). doppler-bounded inertial navigation system, and a turbofan engine. It served with both united states Navy as well as the usa Air Force, and right after utilising the Air nationwide Guard. It wound up in addition exported to Southern Vietnam (through the Vietnam War), Greece (A-7H), Portugal(A-7P), and Thailand (into the belated 1980s)