Return-Path: Received: from [206.228.212.23] (HELO mail.statesville.net) by logan.com (CommuniGate Pro SMTP 4.2b1) with ESMTP id 3133313 for flyrotary@lancaironline.net; Mon, 29 Mar 2004 07:39:51 -0500 Received: from TWJames [63.162.171.178] by mail.statesville.net (SMTPD32-8.05) id A9CADB40226; Mon, 29 Mar 2004 07:42:50 -0500 From: "Tommy James" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Renesis & RD-1Cdrivetesting Date: Mon, 29 Mar 2004 07:39:50 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0028_01C41561.045A6320" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-RBL-Warning: REVDNS: This E-mail was sent from a MUA/MTA 63.162.171.178 with no reverse DNS entry. X-Declude-Sender: twjames@statesville.net [63.162.171.178] X-Note: Scanned for Spam This is a multi-part message in MIME format. ------=_NextPart_000_0028_01C41561.045A6320 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Tracy, I assume that the 15 degree limit is anywhere along the blade rather than anyone radius. Is that correct? Best Guesses are accepted :-) TJ Tracy Crook wrote: That conclusion was based on measurements of the blade angle, prop rpm & airspeed and calculating angle to airflow along with the assumption that stall would occur when angle exceeded 15 deg. Then this SWAG was boiled in a pot with observations of how adversely the cooling was affected by the IVO (stalled air blocking inlets). ------=_NextPart_000_0028_01C41561.045A6320 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi=20 Tracy, I assume that the 15 degree limit is anywhere along the = blade=20 rather than anyone radius. Is that correct? Best Guesses are = accepted :-)

TJ
Tracy Crook wrote:

That conclusion was based on measurements of the blade angle, = prop rpm=20 & airspeed and calculating angle to airflow along with the = assumption=20 that stall would occur when angle exceeded 15 deg. Then this = SWAG was=20 boiled in a pot with observations of how adversely the = cooling was=20 affected by the IVO (stalled air blocking inlets).

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