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GE's Breakthrough in 'Detonating' Hypersonic Propulsion Is a Big Deal
- denton-scratch 3y ago> The resulting sustained shockwave builds its own pressure, as well, leading to even greater fuel efficiency. The concept of a "sustained shockwave" defeats me (somewhat). I guess the sonic boom is a kind of sustained shockwave; but I think of a shockwave as being a discontinuous increase/decrease in pressure, and not something that can be "sustained" in the usual sense of the word.