Welcome to Warbird Wednesday! Today we’re visiting one of the most futuristic airplanes that the U.S. has ever built, the XB-70 Valkyrie. This supersonic aircraft was initially designed to be a high-speed bomber which was spawned from Boeing’s MX-2145 concept. The XB-70 was proposed to use zip fuel, which increased combustion of the fuel and provided an extended range for the airplane. The unique shape of the XB-70 was also designed to provide additional lift from a compression wave. The Valkyrie broke many records, including sustaining Mach 3 for 30 minutes.

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