I'm new to the list and wonder what's the state of development of PDE's. [I don't suppose any ERP members are working on them?] http://www.galcit.caltech.edu/EDL/projects/pde/pde.html has the most information that I have been able to find for detonation motors. [Is there a better one?] I'm enjoying Armadillo's peroxide diary but just wish that civilian rocket science were at the point where entrepreneurs were working at the next level, explosion power rather than just burner power. I fear that the breakthrough inventions regarding PDE's have gone into a classified patents safe so they cannot be applied by the public. I mean, they've been studied for fifty years, mostly by the military, Ill bet. Why no test flight yet? Allen Meece, Key West FL
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