Mailing List flyrotary@lancaironline.net Message #46984
From: <wrjjrs@aol.com>
Subject: Re: [FlyRotary] Re: INJECTION OIL IN FUEL
Date: Tue, 07 Jul 2009 17:56:59 -0400
To: <flyrotary@lancaironline.net>
Bernie,
Glad you have it covered. Just for reference what number did you use for SOS?
Bill


-----Original Message-----
From: Berniehb7448@wmconnect.com
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, Jul 7, 2009 11:59 am
Subject: [FlyRotary] Re: INJECTION OIL IN FUEL

Thank you, Bill.  I will be using 72" Dia triple-blade props, and I'll go whole-hog with inflight-adjustable and feathering. I did some math, and at 6,000 RPM/2:1 reduction, the prop tips are 125 mph under speed of sound. Even if I screw up and go higher, 7,000 engine RPM is still 18 mph under speed of sound at the prop tips. To be safe, I'm thinking of installing an RPM limiter ....when I finally get that far!
Bernie
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