Mailing List flyrotary@lancaironline.net Message #28584
From: Perry Casson <pcasson@sasktel.net>
Subject: Re: [FlyRotary] Props
Date: Mon, 19 Dec 2005 13:00:01 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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I think your math is off a bit - Here's a online calculator http://www.hoverhawk.com/propspd.html

I think 6900 puts a 72" prop close to  mach 0.9 but I've never ran mine above 6500

Perry Casson
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