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X-15 attached to its B-52 mother ship with a T-38 flying nearby. The X-15 had a thick wedge tail to enable it to fly in a steady manner at hypersonic speeds. [16] This produced a significant amount of base drag at lower speeds; [16] the blunt end at the rear of the X-15 could produce as much drag as an entire F-104 Starfighter. [16]
The North American X-15's Flight 188 on October 3, 1967, was a record-setting flight. William J. Knight took the X-15A-2 hypersonic rocket-powered aircraft to 102,100 feet (31,100 meters) over Mud Lake, Nevada when Flight 188 reached a record-setting top speed of 4,520 mph (7,270 km/h), Mach 6.70.
Twelve pilots flew the X-15 over the course of its career. Scott Crossfield and William Dana flew the X-15 on its first and last free flights, respectively. Joseph Walker set the program's top two altitude records on its 90th and 91st free flights (347,800 and 354,200 feet, respectively), becoming the only pilot to fly past the Kármán line, the 100 kilometer, FAI-recognized boundary of outer ...
The eight dimensions of wellness include our physical health, emotional health, social health, intellectual health, spiritual health, financial health, occupational health, and environmental ...
X-15: North American USAF, NASA 1959 Hypersonic, high-altitude flight First crewed hypersonic aircraft; capable of suborbital spaceflight. [25] X-15A-2: North American USAF, NASA 1964 Hypersonic, high-altitude flight Major Pete Knight flew the X-15A-2 to a Mach 6.70, making it the fastest piloted flight of the X-plane program. X-16: Bell USAF 1954
Flight 35 of the North American X-15 was a test flight conducted by NASA and the US Air Force on March 30, 1961. [1] The X-15 was piloted by Joseph A. Walker to an altitude of 169,600 feet (51.7 km; 32.12 mi) surpassing the stratopause. [2] Thus Walker became the first human to reach the mesosphere. [3]