Comments by "Diana Pennepacker" (@dianapennepacker6854) on "How Do Some Engines Rev To 9,000 RPM?" video.

  1. ​ @WarpedYT  Dont know what engine that guy is talking about but I do know Honey Well was in the running for US Helicopters like the Defiant X. Thought the Valor too but Roll Royce took that. So it wouldn't surprise me thst they make super high RPM engines. Yet I only know of turbines.
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