X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.54.250.88] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 912009 for flyrotary@lancaironline.net; Tue, 03 Jan 2006 21:27:38 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.88; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 3 Jan 2006 18:26:54 -0800 Message-ID: Received: from 4.171.174.78 by BAY115-DAV16.phx.gbl with DAV; Wed, 04 Jan 2006 02:26:54 +0000 X-Originating-IP: [4.171.174.78] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: psru Date: Tue, 3 Jan 2006 21:26:51 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006B_01C610AC.69335930" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Tue, 3 Jan 2006 21:26:51 -0500 X-OriginalArrivalTime: 04 Jan 2006 02:26:54.0614 (UTC) FILETIME=[5411DB60:01C610D6] This is a multi-part message in MIME format. ------=_NextPart_000_006B_01C610AC.69335930 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Every answer is correct so far.=20 Yep, same reason why you can't fill your engine with oil and dispense = with the oil pump, filter, etc. Filling with 90 W oil would generate a = heck of an HP loss due to churning & heating of the oil. The ideal is = to keep a film of oil on the gears, not keep them submerged. Cooling is also vital for long term health of the drive. Tracy (off to trouble shoot an SVX installation in Georgia tomorrow) ----- Original Message -----=20 From: Mark R Steitle=20 To: Rotary motors in aircraft=20 Sent: Tuesday, January 03, 2006 5:19 PM Subject: [FlyRotary] Re: psru Bob, =20 I would bet the pressure fed plain bearing is happier with a = continuous supply of pressurized oil. =20 =20 Mark S. -------------------------------------------------------------------------= ----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Bulent Aliev Sent: Tuesday, January 03, 2006 4:07 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: psru =20 Cooling? Bulent "Buly" Aliev http://tinyurl.com/dcy36 =20 On Jan 3, 2006, at 4:48 PM, = bmears9413@aol.com wrote: Why do we keep an oil feed to the re-drive instead of filling it with = 90 weight? =20 Bob Mears =20 ------=_NextPart_000_006B_01C610AC.69335930 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Every answer is correct so far.

Yep, same reason why you can't fill your engine with oil and = dispense with=20 the oil pump, filter, etc. Filling with 90 W oil would = generate=20 a heck of an HP loss due to churning & heating of the oil. The = ideal=20 is to keep a film of oil on the gears, not keep them submerged.

Cooling is also vital for long term health of the drive.

Tracy (off to trouble shoot an SVX installation in Georgia=20 tomorrow)

----- Original Message -----

From: Mark R Steitle =

To: Rotary motors in = aircraft

Sent: Tuesday, January 03, 2006 = 5:19=20 PM

Subject: [FlyRotary] Re: = psru

Bob,

I would bet = the=20 pressure fed plain bearing is happier with a continuous supply of = pressurized=20 oil.

Mark=20 S.

From: Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bulent = Aliev
Sent: Tuesday, January 03, 2006 = 4:07=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: psru

Cooling?

Bulent = "Buly"=20 Aliev

http://tinyurl.com/dcy36=

On Jan 3, 2006, at 4:48 PM, bmears9413@aol.com=20 wrote:

Why do we keep an oil feed to the re-drive = instead of=20 filling it with 90 weight?

Bob=20 Mears

= ------=_NextPart_000_006B_01C610AC.69335930--