Everytime I go thru Huntsville, I see the XR-15 Blackbird over by the missels, I believe they are almost gone, just a couple of them left in the world and I believe they are retired, these are the fastest planes our country has ever produced and set a speed record when it was retired, going from california to the east coast in no time flat. The planes would make a mockery of anything the russians sent up after it, missels included. What a thrill this could be to ride in one of those.