The LTV A-7 Corsair II ended up being a light assault aircraft in line with the F-8 Crusader. The A-7 ended up being among the first combat aircraft to feature a head-up display (HUD). doppler-bounded inertial navigation system, and a turbofan motor. It served with both United States Navy and United States Air Force, and soon after aided by the Air nationwide Guard. It had been also exported to Southern Vietnam (during the Vietnam War), Greece (A-7H), Portugal(A-7P), and Thailand (within the late 1980s)