Return-Path: Received: from [65.54.169.158] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3112120 for flyrotary@lancaironline.net; Sun, 21 Mar 2004 23:25:35 -0500 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 21 Mar 2004 20:25:35 -0800 Received: from 64.159.105.78 by BAY3-DAV128.phx.gbl with DAV; Mon, 22 Mar 2004 04:25:34 +0000 X-Originating-IP: [64.159.105.78] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Data? Was : Renesis & RD-1C drive testing Date: Sun, 21 Mar 2004 23:25:34 -0500 MIME-Version: 1.0 X-Mailer: MSN Explorer 7.02.0011.2700 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0008_01C40F9B.CF02A0E0" Message-ID: X-OriginalArrivalTime: 22 Mar 2004 04:25:35.0265 (UTC) FILETIME=[B8903910:01C40FC5] ------=_NextPart_001_0008_01C40F9B.CF02A0E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable > =20 > Most unexpected finding so far is the radically improved glide at idle =20 > setting. Have no clue why. Would have expected worse instead of bette= r. > =20 > Tracy Don't you have radically increased pitch in the prop? That will do it. Charlie Yep, 88" pitch. Guess I figured even at that blade angle air flow would = be fully stalled past the prop and the disk area being larger would cause= more drag. I was obviously wrong. =20 Also noticed that having a direct MPG readout makes finding the most effi= cient descent angle & throttle setting easy to find. It's a lot differen= t than on the other redrive/prop. Tracy ------=_NextPart_001_0008_01C40F9B.CF02A0E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
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> Most unexpected finding so far is the radically i= mproved glide at idle
> setting.  Have no clue why.  Wou= ld have expected worse instead of better.
> 
> Tracy
Don't you have radically increased pitch in the prop? That will do i= t.

Charlie

Yep, 88" pitch.  Guess I figured even a= t that blade angle air flow would be fully stalled past the prop and= the disk area being larger would cause more drag.  I was obvio= usly wrong. 

Also noticed that having a direct MPG readout m= akes finding the most efficient descent angle & throttle setting easy= to find.  It's a lot different than on the other redrive/prop.=

Tracy

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