XB-70 Valkyrie - Meet The Largest & Fastest Bomber the US Has Ever Built

XB-70A, which was built by the Los Angeles Los Angeles Division of North America (NAA) for the US Air Force, is a high-speed aircraft, delta-wing designed to fly at three-fold and higher than 70,000 feet (21,000 kilometers) .


On September 21, 1964, 5,000 employees and guests at the 42 air force factory in Palmdale, California, watched the Head of the Naa Alvin White pilot and Air Force Copilot Joseph Cotton took his first giant for the first flight. It was the highlight of the effort that began in 1954, when Boeing and NAA submitted a design for the competition for Air Force, and on December 23, 1957, NAA won the competition.

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