X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp110.sbc.mail.ne1.yahoo.com ([98.138.84.53] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5024955 for flyrotary@lancaironline.net; Sat, 18 Jun 2011 22:38:42 -0400 Received-SPF: softfail receiver=logan.com; client-ip=98.138.84.53; envelope-from=echristley@nc.rr.com Received: from [192.168.1.2] (localhost [127.0.0.1]) by smtp110.sbc.mail.ne1.yahoo.com (8.14.4/8.14.4) with ESMTP id p5J2c71p053591 for ; Sat, 18 Jun 2011 19:38:08 -0700 (PDT) (envelope-from echristley@nc.rr.com) Message-ID: <4DFD610F.2000507@nc.rr.com> Date: Sat, 18 Jun 2011 22:38:07 -0400 From: Ernest Christley Reply-To: echristley@att.net User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110424 Lightning/1.0b2 Thunderbird/3.1.10 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Blower does work References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------080809060103070007080604" This is a multi-part message in MIME format. --------------080809060103070007080604 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 06/18/2011 01:50 PM, DLOMHEIM@aol.com wrote: > Ernest Wrote: "Second, if the prop limits rpm, the MAP will not > continue to increase. The blower is tied to the prop with a 3.18 gear > ratio. Since it won't turn any faster, it won't be able to raise the > MAP any further". > So Ernest...when are going to start working on a two speed blower like > the big Pratt's from WWII used???? :) > Doug Dude, I can't even get this one to work. 8*) Got 10hrs of prop carving done today, including building a jig to ensure both blades are the same. --------------080809060103070007080604 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit On 06/18/2011 01:50 PM, DLOMHEIM@aol.com wrote:

Ernest Wrote: "Second, if the prop limits rpm, the MAP will not continue to increase. The blower is tied to the prop with a 3.18 gear ratio. Since it won't turn any faster, it won't be able to raise the MAP any further".

So Ernest...when are going to start working on a two speed blower like the big Pratt's from WWII used???? :)

Doug

Dude, I can't even get this one to work. 8*)

Got 10hrs of prop carving done today, including building a jig to ensure both blades are the same.
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