Mikoyan Ye-152 (MiG-21 variant)
Overview 📷 Photo: Wikimedia Commons / Public Domain The Mikoyan-Gurevich Ye-152 was an experimental Soviet prototype interceptor aircraft developed as […]
Experimental
Experimental/research aircraft
Boeing X-51A Waverider
Overview 📷 Photo: NASA The Boeing X-51A Waverider was an uncrewed experimental aircraft built to test a hydrocarbon-fueled scramjet. Its
NASA X-43A
Overview 📷 Photo: NASA The X-43A set the speed record for an aircraft powered by an air-breathing engine, reaching Mach
North American XB-70 Valkyrie
Overview 📷 Photo: NASA The XB-70 Valkyrie was one of the most extraordinary aircraft ever built—a Mach 3+ strategic bomber
North American X-15
Overview 📷 Photo: NASA On October 3, 1967, William “Pete” Knight flew the rocket-powered X-15A-2 to Mach 6.7 (4,520 mph,
Bell X-1
Overview 📷 Photo: NASA The Bell X-1 was the first crewed aircraft to exceed the speed of sound in level