I was doing a paper on any topic. So i picked this one and did a lot of research. It was very advanced period. 6,000 ft. take-off. Mach 2.
I'd be interested to read your paper when it's finished, and maybe consider it for publication. Can you e-mail me it?
Some aftermath history: Apparently they destroyed the construction materials and prototype parts because of a fear/suspicion that there was a Soviet mole in the project. This was apparently confirmed to some degree in the Mitrokhin archives.
I still have a hard time believing this, even if there was a mole, I'd say they destroyed everything to keep the decision from being reversed/reconsidered. You could take other measures to keep it from falling into the wrong hands. Was all documentation destroyed as well, or did some go to the US?