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. The delta winged, single turbojet engined Skyhawk was designed and produced by Douglas Aircraft Company. The Skyhawk is a relatively lightweight aircraft with a maximum takeoff weight of 24,500 pounds and has a top speed of more than 670 miles per hour. The aircraft’s five hardpoints support a variety of missiles, bombs and other munitions. It was capable of carrying a bomb load equivalent to that of a World War II-era Boeing B-17 bomber, and could deliver nuclear weapons using a low-altitude bombing system and a “loft” delivery technique. Skyhawks were the U.S. Navy’s primary light attack aircraft used over North Vietnam during the early years of the Vietnam War and a Marine Skyhawk is believed to have dropped the last American bombs on the country. It has a maximum speed of 673 mph and a range of 2,000 mi. The A-4 carries an armament consisting of two 20 mm (0.79 in) Colt Mk 12 cannon and five hardpoints: four under-wing and one under-fuselage pylon stations holding up to 9,900 lb (4,490 kg) of payload.