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4 February 1969. The North American Aviation XB-70 Valkyrie is a retired prototype version of the planned B-70 nuclear -armed, deep-penetration supersonic strategic bomber for the United States Air Force Strategic Air Command. Designed in the late 1950s by North American Aviation (NAA) to replace the B-52 Stratofortress and B-58 Hustler, [1 ...
Among them is the Apollo 15 Command Module Endeavour which orbited the Moon 74 times in 1971, one of four surviving Convair B-36 Peacemakers, the only surviving North American XB-70 Valkyrie and Bockscar—the Boeing B-29 Superfortress that dropped the Fat Man atomic bomb on Nagasaki during the last days of World War II.
Test pilot. Space career. USAF Test Pilot. Selection. 1958 MISS Group. Missions. None. Alvin Swauger White (December 9, 1918 – April 29, 2006) was an American test pilot and mechanical engineer. He flew the maiden flights of both XB-70 Valkyrie aircraft, the first 2,000 mph (3,200 km/h) flight, and all subsequent Mach 3 exploration flights.
The first XB-70 — nicknamed Valkyrie following a naming contest — was rolled out in Palmdale, California, on May 11, 1964. With a wingspan of over 100 feet, six General Electric turbojet ...
Zip fuel, also known as high energy fuel ( HEF ), is any member of a family of jet fuels containing additives in the form of hydro-boron compounds, or boranes. Zip fuels offer higher energy density than conventional fuels, helping extend the range of jet aircraft. In the 1950s, when the short range of jet aircraft was a major problem for ...
The cabin was made taller for the Series 70 and General Electric CF700 turbofans were installed for the Series 75A (also branded as the Series 80). [4] By 1973, North American had merged with Rockwell Standard under the name Rockwell International. In 1976 Rockwell contracted Raisbeck Engineering to redesign the wing of the Sabreliner series. [5]
General Electric YJ93. The General Electric YJ93 turbojet engine was designed as the powerplant for both the North American XB-70 Valkyrie bomber and the North American XF-108 Rapier interceptor. The YJ93 was a single-shaft axial-flow turbojet with a variable-stator compressor and a fully variable convergent/divergent exhaust nozzle.
BTW, the cost of a B-2 bomber was $2,1 Billion for 21 operational planes (+ 5-6 test articles). XB-70's cost cited in 1961 = $700M. Converted to 1981 $ that's $1,9B - $2,1B for only 2 planes!!! Had the B-2 been cancelled after 2 planes were built they would probably have had a price tag in excess of $10B.