Search results
Results from the WOW.Com Content Network
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 ...
Walker piloted the X-15 to an altitude of 107.96 km and remained weightless for approximately five minutes. The altitude was the highest crewed flight by a spaceplane to that time, and remained the record until the 1981 flight of Space Shuttle Columbia. Walker landed the X-15 about 12 minutes after it was launched, at Rogers Dry Lake, Edwards ...
The X-15 reaction control system (RCS), for maneuvering in the low-pressure/density environment, used high-test peroxide (HTP), which decomposes into water and oxygen in the presence of a catalyst and could provide a specific impulse of 140 s (1.4 km/s).
Flight 90 of the North American X-15 was a research flight conducted by NASA and the US Air Force on July 19, 1963. It was the first of two X-15 missions that passed the 100-km high Kármán line, the FAI definition of space, along with Flight 91 the next month. The X-15 was flown by Joseph A. Walker, who flew both X-15 spaceflights over the ...
Flight 188 was the 53rd flight for X-15 Number 2 and the 5th flight as the modified X-15A-2. The X-15A-2 used a reaction Motors XLR99 engine by the Reaction Motors Division of Thiokol Chemical Company. William J. Knight was a test pilot for the United States Air Force and NASA. The X-15A-2 Number 2 was the only X-15 to have the external tank ...
By RYAN GORMAN A paper airplane set a new Guinness world record as it flew 82 miles this month. A team of auxiliary U.S. Air Force volunteers launched the paper aircraft from a weather balloon ...
He flew the aircraft 14 times during the following two years, reaching a maximum speed of 3,712 mph (Mach 5.48) and a peak altitude of 214,100 feet on separate flights. The X-15 program provided a wealth of data on aerodynamics, thermodynamics, propulsion, flight controls, and the physiological aspects of high-speed, high-altitude flight.
This is the first known carbonaceous chondrite to have been found in the UK, and the first meteorite recovered in the UK in 30 years. Show comments Advertisement