X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail16.syd.optusnet.com.au ([211.29.132.197] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTPS id 2166094 for flyrotary@lancaironline.net; Sun, 08 Jul 2007 23:55:09 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.197; envelope-from=lendich@optusnet.com.au Received: from george (d58-104-213-103.dsl.nsw.optusnet.com.au [58.104.213.103]) by mail16.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id l693sPYJ014872 for ; Mon, 9 Jul 2007 13:54:26 +1000 Message-ID: <005501c7c1dc$dbff3550$67d5683a@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: OMP flow rate Date: Mon, 9 Jul 2007 13:54:31 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0052_01C7C230.ACD97660" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0052_01C7C230.ACD97660 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Al, I think that equates ( in my notes) to 1 oz to a Us gallon. George ( down under)=20 Al, I can't remember the rate but it would be something like 100:1 to the = fuel, even less if memory serves me correctly, maybe 150:1. However the mechanical OMP has two settings one low at low rpm and = them full on at about 2,000 rpm.=20 I doubt if the OMP speed to the crank speed would be of much use- = Richard Sohn knows the in's and out's of this ( excuse the pun). George ( down under)=20 Using Richards data, I come up with about 130:1 for my engine at about = 5000 rpm. It seems to make sense. Thanks, Richard. Al ----- Original Message -----=20 From: Al Gietzen=20 To: Rotary motors in aircraft=20 Sent: Friday, July 06, 2007 10:12 AM Subject: [FlyRotary] OMP flow rate Does anyone know what the flow rate is from the OMP? Unfortunately, I don't know what year the pump is from. It is on my = 20B which has a 12A front cover. It is a 4-port, likely from a 13B, in = which one port has been blocked and the other three go one to each rotor = housing. The only data I have on hand is what Richard measured some years = ago, running the pump at 6000 rpm. This could useful if I knew the = ratio of pump speed to eccentric shaft speed. Thanks, Al ------=_NextPart_000_0052_01C7C230.ACD97660 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Al, I think that equates ( in my=20 notes) to 1 oz to a Us gallon.

George ( down under)

Al,

I can't remember the = rate but it=20 would be something like 100:1 to the fuel, even less if memory serves = me=20 correctly, maybe 150:1.

However the mechanical = OMP has two=20 settings one low at low rpm and them full on at about 2,000 rpm.=20

I doubt if the OMP speed = to the=20 crank speed would be of much use- Richard Sohn knows the in's and = out's of=20 this ( excuse the pun).

George ( down=20 under)

Using = Richards=20 data, I come up with about 130:1 for my engine at about 5000 rpm. = It=20 seems to make sense. Thanks, Richard.

Al

----- Original Message = -----=20

From: Al = Gietzen=20

To: Rotary motors in = aircraft=20

Sent:=20 Friday, July 06,=20 2007 10:12=20 AM

Subject:=20 [FlyRotary] OMP flow rate

Does = anyone know=20 what the flow rate is from the OMP?

Unfortunately, I=20 don=92t know what year the pump is from. It is on my 20B which = has a 12A=20 front cover. It is a 4-port, likely from a 13B, in which one = port has=20 been blocked and the other three go one to each rotor=20 housing.

The = only data I=20 have on hand is what Richard measured some years ago, running the = pump at=20 6000 rpm. This could useful if I knew the ratio of pump speed = to=20 eccentric shaft speed.

Thanks,

Al

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