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Old 04-22-2024, 08:07 PM
donquixote99's Avatar
donquixote99 donquixote99 is offline
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Join Date: Oct 2013
Posts: 19,174
OK, I'll buy 40,000 rpm for a turbine, but geared way down for the rotors. You were not seeing (and in particular not hearing) a thing with supersonic rotors.
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