Valkyrie was an experimental U.S. nuclear bomber developed in the 1950s and 1960s as a potential replacement for the B-52.

Exemplifying the period was the North American XB-70 Valkyrie, a supersonic bomber with impressive specifications and a cult-like place in the annals of aviation history. Designed in the early 1960s ...

The Air Force also built the Convair B-58 Hustler to compete with the B-52 (the first operational bomber capable of Mach 2).

It was the "largest and fastest bomber" that the US ever built, according to The National Interest. The XB-70 Valkyrie could cruise at Mach 3, riding its own shock wave to do so, and could hit ...

A unique bomber-style fighter jet, the North American XB-70 Valkyrie has a top speed of around 2,050 mph, which is about Mach 3, depending on the altitude. This experimental fighter never ...

The model featured large variable sweep-wings to increase lift during takeoff and landing – similar to the North American XB-70 and General Dynamics F-111 Aardvark. The B-1B bomber variant was ...