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 This is a close-up photo of North American Aviation XB-70A taken from a chase plane. The XB-70 had a movable windshield and ramp. These were raised during supersonic flight to reduce drag. When the pilot was ready to land, he lowered the assembly to give both him and his copilot a clear view of the runway.

 The XB-70A Valkyrie was the largest experimental aircraft, measuring 190 feet in length, with a wing span of 105 feet and standing 33 feet in height. The aircraft had a delta wing and hinged wing tip that could be folded down to a 65 degree angle to improve stability at the aircraft's supersonic speeds of up to Mach 3. At this speed the Valkyrie was designed to ride its own shock wave.