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Re: [OM] [OT] In case you hadn't heard....

Subject: Re: [OM] [OT] In case you hadn't heard....
From: Jim Nichols <jhnichols@xxxxxxxxxxxxx>
Date: Sun, 23 Mar 2014 22:13:30 -0500
Hi Moose,

I referred to Wikipedia for typical blade lengths and rotational 
speeds.  From what I see, the maximum tip speed would be around 300 
ft/sec, well below any supersonic effects.  There are probably other 
limits at play here, of which I have no knowledge.

Jim Nichols
Tullahoma, TN USA

On 3/23/2014 9:53 PM, Moose wrote:
> Then it occurred to me that it might by the same thing as airplane 
> propellers run into, tips going supersonic? Those long blades are 
> longer than a semi trailer. Destabilize them, and they could fly off 
> wipe out a farm. Mach ? Moose 

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