The LTV A-7 Corsair II wound up being a light assault aircraft on the basis of the F-8 Crusader. The A-7 ended up being one of the primary combat aircraft to feature a head-up display (HUD). doppler-bounded inertial navigation system, and a turbofan engine. It served with the united states Navy as well as the united states of america Air Force, and right after utilizing the Air nationwide Guard. It absolutely was furthermore exported to Southern Vietnam (through the Vietnam War), Greece (A-7H), Portugal(A-7P), and Thailand (into the belated 1980s)