Vought / LTV A-7 Corsair II Carrier-Borne Strike Aircraft
The LTV A-7 Cosair II strike platform was developed as a replacement for the Douglas A-4 Skyhawk line and was based on the successful Vought F-8 Crusader design.
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Developed as a successor to the Douglas A-4 "Skyhawk" series of carrier-based strike fighter, the LTV A-7 "Corsair II" entered service with the United States Navy (USN) during the Vietnam War (1955-1975) in 1967. Some 1,569 examples were ultimately produced and operated by the United States, Greece (Hellenic), Portugal, and Thailand. The last operational versions were retired (with the Hellenic Air Force) as recently as 2014 while American use was given up following the Gulf War in 1993.
Origins of the A-7 reside back in a 1962 USN initiative which produced the VAX ("Heavier-than-Air, Attack, Experimental") program seeking a follow-up design to the aging A-4 platform. A budget-conscious approach was selected in which an existing airframe was to serve as the basis for the new aircraft. This would also expedite development and ultimate serial production of the strike fighter. Key industry powerhouses such as Douglas, Grumman, North American, and Vought (part of Ling-Temco-Vought = LTV) put forth various submissions, each with potential. The Vought submission in particular was based on their successful F-8 "Crusader" carrier-based strike fighter which became a proven USN contributor during the 1960s. Its airframe was modified slightly to include a shortened fuselage but retained its high-mounted, swept-back wings (though with greater span), tricycle undercarriage, and under-cockpit intake. The adjustable, pivoting wing mainplanes of the F-8 were dropped to simplify the new design for both production and maintenance/operation. After evaluation of all the competing types, the Vought submission was selected in February of 1964 and assigned the USN designation of "A-7" with the name of "Corsair II" - honoring the successful war-winning World War 2-era Vought F4U "Corsair" carrier-based, prop-driven product.