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.

Conceived in the 1950s as an intercontinental strategic nuclear bomber, the futuristic Valkyrie instead became a unique test aircraft in the 1960s. Higher and Faster: B-70 Bomber Concept.

2014年2月28日 · 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.

2020年11月27日 · The Air Force’s XB-70 Valkyrie was the fastest bomber ever developed. What killed it? And could it have been used for another purpose?

2024年3月18日 · It was the XB-70 Valkyrie, an experimental plane developed for the US Air Force. Its inaugural flight — 60 years ago in September 1964 — kicked off a golden era for supersonic aircraft.

2025年1月11日 · Built during the height of the Cold War, the XB-70 was conceived as a supersonic bomber capable of cruising at Mach 3—three times the speed of sound—while delivering nuclear payloads deep into enemy territory. It wasn’t just a bomber; it was a statement of technological dominance.

6 天之前 · The XB-70’s Design. In 1957, North American Aviation won the contract to develop XB-70, a delta-winged behemoth designed to cruise at Mach 3 (over 2,300 miles per hour) and altitudes exceeding ...

2009年11月10日 · North American Aviation’s XB-70 fulfilled General Curtis E. LeMay’s dream of a bomber that could penetrate the Soviet Union with impunity, carrying enough ordnance to decide the outcome of a war in a single strike.

In flight, the XB-70 could lower the outer wing sections 25 degrees for flying from 300 knots to Mach 1.4, or a severe 65 degrees for speeds from Mach 1.4 to Mach 3+. Measuring just a bit over 20 feet at the trailing edge, these wingtips represent the …

SQ Wings L2081 1:200 North American XB-70 Valkyrie US Air Force, Wright Patterson, National Museum of the United States Air Force Highly detailed diecast pre-finished collector model airplane. Each model comes with display stand, parts for landing gear to be displayed in the up or down position, rolling gears, and is a