At the height of the Cold War, the United States came up with the ultimate strategic bomber. This was the North American XB-70 Valkyrie. The XB-70 was a Mach 3 prototype that would have led to the ...

-Engineered to "ride" its own shockwave for fuel efficiency, the massive bomber was a technological masterpiece. However, its development coincided with the dawn of the "missile age." -The rise of ...

Summary: The XB-70 was designed to be larger and faster than the B-52. It was 196 feet long, 31 feet tall at the tail, with a 105-foot wingspan, and powered by six turbojet engines. -It could reach ...

Summary: The Air Force’s XB-70 “Valkyrie” supersonic bomber was designed to replace the B-52 Stratofortress with its advanced speed, capable of reaching Mach 3. -However, the program was canceled by ...

Key Points and Summary on the XB-70 - The North American XB-70 Valkyrie was a magnificent but doomed attempt to create a Mach 3 strategic bomber to replace the B-52. -This revolutionary aircraft, with ...

GE won a contract for the J93 propulsion system of the North American XB-70 Valkyrie supersonic bomber in 1957. The highly-advanced, lightweight single-shaft turbojet engine incorporated variable ...