Douglas A-4 Skyhawk Attack aircraft The Douglas A-4 Skyhawk is a single seat subsonic carrier-capable attack aircraft developed for the United States Navy and United States Marine Corps in the early 1950s. Top speed: 1,083 km/h Length: 12 m Wingspan: 8.38 m Range: 1,127 km Unit cost: 860,000–860,000 USD Engine types: Pratt & Whitney J52, Wright J65 Grumman A-6 Intruder Attack aircraft The Grumman A-6 Intruder was an American, twinjet, mid-wing all-weather attack aircraft built by Grumman Aerospace. Wingspan: 16 m Unit cost: 43,000,000–43,000,000 USD (1998) Engine type: Pratt & Whitney J52 Variants: Northrop Grumman EA-6B Prowler Number built: 693 Lockheed S-3 Viking Anti-Submarine aircraft The Lockheed S-3 Viking is a four-seat, twin-engine turbofan-powered jet aircraft that was used by the U.S. Navy to identify and track enemy submarines. In the late 1990s, the S-3B's mission focus shifted to surface warfare and aerial refueling. Wingspan: 21 m Length: 16 m Unit cost: 27,000,000–27,000,000 USD (1974) Engine type: General Electric TF34 Number built: 188 Role: Carrier-based anti-submarine aircraft Primary users: United States Navy (historical); NASA McDonnell Douglas F-4 Phantom II Fighter bomber The McDonnell Douglas F-4 Phantom II is a tandem two-seat, twin-engine, all-weather, long-range supersonic jet interceptor and fighter-bomber originally developed for the United States Navy by McDonnell Aircraft. Top speed: 2,370 km/h Length: 19 m Wingspan: 12 m Unit cost: US$2.4 million (FY1965, new build F-4E) Retired: 1992 (UK); 1996 (U.S. combat use); 2013 (Germany); 2016 (United States) Engine type: General Electric J79