X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 10 [X] Return-Path: Received: from ms-smtp-01.southeast.rr.com ([24.25.9.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.3) with ESMTP id 1624785 for flyrotary@lancaironline.net; Thu, 30 Nov 2006 12:40:42 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-100-190.carolina.res.rr.com [24.74.100.190]) by ms-smtp-01.southeast.rr.com (8.13.6/8.13.6) with SMTP id kAUHdp5c003495 for ; Thu, 30 Nov 2006 12:39:53 -0500 (EST) Message-ID: <005d01c714a6$8bb77050$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" Subject: Windmilling Prop Date: Thu, 30 Nov 2006 12:34:11 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0040_01C7147B.D631A860" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0040_01C7147B.D631A860 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Been having e mail problems and it appears that non of my messages = regarding my windmilling prop reached the list. To recap: I found that with my 2.17:1 and my old 68x72 prop that the = engine would windmill down to 110 MPH IAS. Once stopped, it would take = an increase in airspeed to around 115 MPH IAS to get the prop to start = windmilling again. I had the opportunity to check this out pretty = thoroughly in my 12 mile glide {:>). Have had no experience (and not = looking for any) with my 2.85 and 74x88 prop, but I suspect that a = higher airspeed would be needed. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html ------=_NextPart_000_0040_01C7147B.D631A860 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Been having e mail problems and it appears that = non of my=20 messages regarding my windmilling prop reached the list.
 
To recap:  I found that with my 2.17:1 and = my old=20 68x72 prop that the engine would windmill down to 110 MPH IAS.  = Once=20 stopped, it would take an increase in airspeed to around 115 MPH IAS to = get the=20 prop to start windmilling again.  I had the opportunity to check = this out=20 pretty thoroughly in my 12 mile glide {:>).   Have had no=20 experience (and not looking for any) with my 2.85 and 74x88 prop, but I = suspect=20 that a higher airspeed would be needed.
 
Ed
 
Ed Anderson
Rv-6A N494BW Rotary = Powered
Matthews,=20 NC
eanderson@carolina.rr.comhttp:/= /members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.dmack.net/mazda= /index.html
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