You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
The Vickers Valiant B.2 was developed in the 1950s as a pathfinder type aircraft which would mark targets for the rest of the V-Bomber force. In 1958 the aircraft was canceled due to the pathfinder concept being obsolete in the Atomic Age. However, the Valiant B.2 seems to have had some characteristics that would have made it a potent aircraft in the 1960s and onwards, as bombers began to switch to low-altitude attack. Specifically, it had a very high speed of 580 miles per hour at low altitude, with up to 640 miles per hour reached in tests.
I'm wondering how well the Valiant B.2 would have fared as an alternative to the BAC TSR-2. It seems it would have been akin to the F-111H in terms of role and capabilities.