I have no personal knowledge of the Aurora, but I absolutely loved the SR-71. They used to fly them right over the Soviet Union, and by the time their air defense could respond, it was already gone. The firm top speed has never been declassified, but the Russians showed it as going above Mach 3. On the ground it didn't even look like it could fly, it tended to drip lubricant and the wings sagged a bit, but that was because it was so optimized for flight that that it was a completely different Blackbird in the air.
I'm not anti-Christian. I'm anti-stupid.