Apr 19, 2021
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With the blade length and rotation speed and I would guess a much lower speed of sounds on Mars were there any concerns with the blades breaking the sound barrier?
 
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With the blade length and rotation speed and I would guess a much lower speed of sounds on Mars were there any concerns with the blades breaking the sound barrier?
Speed of sound on Mars at ground level is ~540mph.

4 feet diameter @ 2400rpm = tip speed of ~502mph.
Close, but not quite over.

EDIT: Mods, please move this to an appropriate Forum.
 
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