Fascinating photos reveal how they built the Blackbird: Built and designed in the after the Oxcart, the Blackbird is still the fastest, most vanguardist air-breathing airplane in the history of aviation.
A 1967 photo shows the North American Valkyrie at Edwards Air Force Base in California. This experimental bomber could fly Mach at feet. Its pronounced canards and large delta wings turned a lot of heads.
The space shuttle Endeavour,fresh from the mission and mounted atop its modified Boeing 747 carrier aircraft, flies over California's Mojave Desert on a three-day trip back to the Kennedy Space Center in Florida on Wednesday Dec. By AP Photo/NASA