Return-Path: Received: from envelope.rose-hulman.edu ([137.112.8.21] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP-TLS id 793882 for flyrotary@lancaironline.net; Mon, 14 Mar 2005 22:54:07 -0500 Received-SPF: none receiver=logan.com; client-ip=137.112.8.21; envelope-from=madsena@rose-hulman.edu Received: from bob (cpe-24-160-204-151.ma.res.rr.com [24.160.204.151]) (authenticated (0 bits)) by envelope.rose-hulman.edu (8.11.6/8.11.6) with ESMTP id j2F3rC405753 (using TLSv1/SSLv3 with cipher RC4-MD5 (128 bits) verified NO) for ; Mon, 14 Mar 2005 22:53:19 -0500 (EST) Message-Id: <200503150353.j2F3rC405753@envelope.rose-hulman.edu> From: "Alex Madsen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: peripheral ports Date: Mon, 14 Mar 2005 22:55:11 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0020_01C528E8.E5A0C6D0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: AcUo72QApvE62Aq+Qbq06GZ63BtzpwAIl/5w In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0020_01C528E8.E5A0C6D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Jerry, have you looked into getting your P-port insert rapid cast? If I remember correctly it has a complex internal geometry. http://www.protcast.com/foundry.htm =20 Alex Madsen PS While you are at it how about some AL side housings ;) =20 =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Jerry Hey Sent: Monday, March 14, 2005 6:42 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: peripheral ports =20 On Monday, March 14, 2005, at 01:26 PM, Richard Sohn wrote: =20 ----- Original Message ----- From: Jerry Hey To: Rotary motors in aircraft Sent: Monday, March 14, 2005 5:33 AM Subject: [FlyRotary] Re: peripheral ports On Monday, March 14, 2005, at 08:02 AM, Paul wrote: Paul, all the companies you list sell housings with BIG p - ports and massive overlap. They are designed to develop tremendous hp at high rpm = for racing. Of course they don't idle smoothly. These engines have nothing = to do with the smaller, conservatively timed p ports that we wish to use as aircraft engines. Jerry Jerry, what are you calling consevatively timed p-ports? Just want to see were I stand with mine. Richard Sohn N-2071U Richard here is the timing on my p port. I.O.=3D 78=BA BTDC I.C.=3D = 75=BA ABDC=20 In the attached drawing the opening and closing events are measured from = the housing center line. My p port is on the left. The Leman p port is on = the right. Jerry ------=_NextPart_000_0020_01C528E8.E5A0C6D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Jerry, have you looked into getting = your P-port insert rapid cast? If I remember correctly it has a complex = internal geometry.

http://www.protcast.com/foun= dry.htm

Alex = Madsen

PS While you are at it how about = some AL side housings =A0;)

From: = Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On Behalf Of Jerry = Hey
Sent: Monday, March 14, = 2005 6:42 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: peripheral ports

On Monday, March 14, 2005, at 01:26 PM, Richard Sohn = wrote:

----- Original Message -----
From: Jerry Hey
To: Rotary motors in aircraft
Sent: Monday, March 14, = 2005 5:33 AM
Subject: [FlyRotary] Re: peripheral ports

On Monday, March 14, 2005, at 08:02 AM, Paul wrote:

Paul, all the companies you list sell housings with BIG p - ports and = massive overlap. They are designed to develop tremendous hp at high rpm for = racing. Of course they don't idle smoothly. These engines have nothing to do with = the smaller, conservatively timed p ports that we wish to use as aircraft = engines. Jerry

Jerry,

what are you calling consevatively = timed p-ports?
Just want = to see were I stand with mine.

Richard Sohn
N-2071U

Richard here is the timing on my p port. I.O.=3D 78=BA BTDC = I.C.=3D 75=BA ABDC

In the attached drawing the opening and closing events are measured from = the housing center line. My p port is on the left. The Leman p port is on = the right. Jerry

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