Airco DH.4
A versatile two-seat British combat aircraft used for day bombing, observation and artillery spotting, and the only American-built aircraft type to see U.S. combat service in World War I.
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A versatile two-seat British combat aircraft used for day bombing, observation and artillery spotting, and the only American-built aircraft type to see U.S. combat service in World War I.
A clean-sheet semi-autonomous uncrewed fighter prototype developed for the U.S. Air Force Collaborative Combat Aircraft program and flown in 2025.
An all-metal-structured British fighter that became one of the RAF’s principal mid-1920s air-defence types and a prominent display aircraft.
A French carrier-fighter prototype developed for postwar naval requirements.
A large Canadian Mach 2 interceptor prototype program intended for continental air defense.
An advanced low-level supersonic strike and reconnaissance aircraft canceled after prototype flight testing.
A U.S. Army armed-reconnaissance helicopter prototype derived from the Bell 407 platform for scout, target-acquisition, and light-attack missions.
A lightweight wooden fighter prototype pursued as a strategic-material-saving design during World War II.
A purpose-built U.S. Army Advanced Attack Helicopter prototype that competed directly with the Hughes YAH-64.
A large jet amphibian designed from the outset for anti-submarine defense and related naval combat missions, flown as a prototype in the closing Cold War.
A late piston-engined carrier strike prototype developed as a successor to the Firebrand.
A series of carrier anti-submarine prototypes developed in competition with the Fairey Gannet.
A single-seat British carrier torpedo bomber that became an important Fleet Air Arm strike type during the 1920s.
A Boeing carrier fighter developed from the F2B and fielded by U.S. Navy fighter squadrons before the F4B became the dominant type.
A low-observable U.S. Army armed-reconnaissance helicopter prototype developed for the combined scout and attack mission.
A lightweight supersonic fighter prototype built for NATO’s light tactical strike-fighter competition.
A mixed-power carrier attack prototype that directly influenced the later Breguet Alizé anti-submarine aircraft.
An advanced Australian piston-fighter prototype developed at the end of World War II and flown in 1946.