X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 17 Oct 2007 21:22:08 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m25.mx.aol.com ([64.12.137.6] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2390632 for lml@lancaironline.net; Tue, 16 Oct 2007 19:23:18 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.6; envelope-from=VTAILJEFF@aol.com Received: from VTAILJEFF@aol.com by imo-m25.mx.aol.com (mail_out_v38_r9.3.) id q.cab.19dc850c (39332) for ; Tue, 16 Oct 2007 19:22:35 -0400 (EDT) From: VTAILJEFF@aol.com X-Original-Message-ID: X-Original-Date: Tue, 16 Oct 2007 19:22:34 EDT Subject: Re: [LML] Re: prop drag X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1192576954" X-Mailer: AOL 9.0 VR sub 165 X-Spam-Flag: NO -------------------------------1192576954 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 10/15/2007 6:41:46 P.M. Central Daylight Time, tthibaultsprint@earthlink.net writes: His description of the incident lists a descent rate of ~1,400 FPM during the glide. That RV has a 180 HP Lyc IO-360 with Hartzell CS prop. By comparison, my LNC2, with the same engine prop combination, obtains an idle power ~500 FPM descent rate in full coarse pitch and ~1,500 FPM in fine pitch. Is it surprising to anyone that a stopped, coarse pitch prop in an RV would result in such a large descent rate? You are talking about two different aircraft not just two different props. Some flight testing is in order. Jeff ************************************** See what's new at http://www.aol.com -------------------------------1192576954 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 10/15/2007 6:41:46 P.M. Central Daylight Time,=20 tthibaultsprint@earthlink.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>His=20 description of the incident lists a descent rate of ~1,400 FPM during the=20 glide. That RV has a 180 HP Lyc IO-360 with Hartzell CS prop. =20= By=20 comparison, my LNC2, with the same engine prop combination, obtains an idl= e=20 power ~500 FPM descent rate in full coarse pitch and ~1,500 FPM in fine=20 pitch.

Is it surprising to anyone that a stopped, coarse pitch prop= in=20 an RV would result in such a large descent rate? =

You are talking about two different aircraft not just two different pro= ps.=20 Some flight testing is in order.

Jeff

See what's new a= t AOL.com and=20= Make AOL Your Homepage.

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