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The XB-70 Valkyrie was a supersonic strategic bomber prototype for the US Air Force in the 1960s. It was designed to replace the B-52 and B-58, but was cancelled due to the advent of ICBMs and the difficulty of flying at high speed and altitude.
North American XB-70 Valkyrie – amerykański ponaddźwiękowy samolot eksperymentalny z początku lat 60. XX wieku, opracowany i zbudowany w zakładach North American Aviation (NAA) w układzie kaczki z nowatorskimi, składanymi w pionie końcówkami skrzydeł. Celem programu, prowadzonego na zlecenie Dowództwa Strategicznych Sił Powietrznych USA (ang.
In the mid-1950s, the USAF wanted a radically advanced new bomber that could fly much faster (Mach 3+ or 2,000 mph) and higher (70,000+ feet) than the B-52 it would replace. The revolutionary B-70 design promised to meet this demanding requirement.
27 sie 2024 · Trzymachowy bombowiec strategiczny B-70 Valkyrie powstał na przełomie lat 50. i 60., ale nawet dziś jego sylwetka robi ogromne wrażenie i może być uznana za futurystyczną.
28 lut 2014 · The XB-70 Valkyrie, with a planned cruise speed of Mach 3 and operating altitude of 70,000 feet, was to be the ultimate high-altitude, high-speed manned strategic bomber. Events, however, would cause it to play a far different role in the history of aviation.
17 paź 2014 · Learn about the design, development, and testing of the XB-70 Valkyrie, a supersonic manned bomber that became a research aircraft for SST studies. See photos and facts of the two XB-70A prototypes and their fate.
29 lis 2020 · We have often written about the XB-70 Valkyrie, With a cruise speed of Mach 3 and operational altitude of 70,000 feet, that should have granted the bomber a near-invulnerability against...
