X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from proofpoint3.metrocast.net ([65.175.128.159] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTPS id 2139798 for flyrotary@lancaironline.net; Mon, 25 Jun 2007 18:07:49 -0400 Received-SPF: none receiver=logan.com; client-ip=65.175.128.159; envelope-from=ben@pa.metrocast.net Received: from ben22d25bef6f7 (d-72-9-21-43.metrocast.net [72.9.21.43]) by proofpoint3.metrocast.net (8.13.7/8.13.7) with SMTP id l5PM77qF016949 for ; Mon, 25 Jun 2007 18:07:07 -0400 Message-ID: <002301c7b775$319df2c0$2b150948@ben22d25bef6f7> From: "Ben Baltrusaitis" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] plugs up. Was Method of killing power?? Date: Mon, 25 Jun 2007 18:06:44 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001B_01C7B753.96EF4420" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-Antivirus: avast! (VPS 000752-0, 06/25/2007), Outbound message X-Antivirus-Status: Clean X-Proofpoint-Virus-Version: vendor=fsecure engine=4.65.5502:2.3.11,1.2.37,4.0.164 definitions=2007-06-25_04:2007-06-25,2007-06-25,2007-06-25 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlx=0 adultscore=0 adjust=0 reason=mlx engine=3.1.0-0705030000 definitions=main-0706250058 This is a multi-part message in MIME format. ------=_NextPart_000_001B_01C7B753.96EF4420 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ed, The other list said that there was a possibility of boiling the coolant = in the cavities near the plugs with the plugs up install. Did you do the = modification of removing some webbing to prevent that, or, do you find = boiling no problem? Ben (seriously considering plugs up) Acroduster Too 20B {under construction} ----- Original Message -----=20 From: wrjjrs@aol.com=20 To: Rotary motors in aircraft=20 Sent: 06/25/2007 5:48 PM Subject: [FlyRotary] Re: Method of killing power?? Ed, It is interesting to note that the Curtis-Wright rotary engine had = the long axis of the throchoid at about 45=B0 with the plugs on the = high=20 side! Semi plugs up. The exhaust port was near the bottom. So your way = of thinking has support. I've never thought plugs up was bad, just=20 certain people do. You do have to have a better fabrication ability=20 than conventional installs. the lack of available equipment is the=20 biggest drawback. Bill Jepson -----Original Message----- From: Ed Anderson To: Rotary motors in aircraft Sent: Mon, 25 Jun 2007 10:34 am Subject: [FlyRotary] Re: Method of killing power?? Good point, Bill. Mine will slowly leak down through the pressure=20 regulator, but not fast enough to preclude potential flooding with a=20 leaky injector. But in my case, "Plugs Up", any fuel that enters the=20 combustion chamber simply drains out the exhaust port(on the bottom)=20 and since the plugs are at the highest point, there is less likelihood = of any liquid gas entering into the spark plug cavity and drowning the = plugs. This is the reason why flooding is not a significant event for=20 the plugs up.=20 Ed ------=_NextPart_000_001B_01C7B753.96EF4420 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ed,
The other = list said that=20 there was a possibility of boiling the coolant in the cavities near the = plugs=20 with the plugs up install. Did you do the modification of removing some = webbing=20 to prevent that, or, do you find boiling no problem?
Ben = (seriously considering=20 plugs up)
Acroduster = Too=20 20B {under=20 construction}
----- Original Message -----
From:=20 wrjjrs@aol.com
Sent: 06/25/2007 5:48 PM
Subject: [FlyRotary] Re: Method = of=20 killing power??

Ed, It is interesting to note that the Curtis-Wright = rotary=20 engine had
the long axis of the throchoid at about 45=B0 with the = plugs on=20 the high
side! Semi plugs up. The exhaust port was near the = bottom. So=20 your way
of thinking has support. I've never thought plugs up was = bad,=20 just
certain people do. You do have to have a better fabrication = ability=20
than conventional installs. the lack of available equipment is the =
biggest drawback.
Bill Jepson


-----Original=20 Message-----
From: Ed Anderson <eanderson@carolina.rr.com&g= t;
To:=20 Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent:=20 Mon, 25 Jun 2007 10:34 am
Subject: [FlyRotary] Re: Method of = killing=20 power??


Good point, Bill. Mine will slowly leak down = through the=20 pressure
regulator, but not fast enough to preclude potential = flooding=20 with a
leaky injector. But in my case, "Plugs Up", any fuel that = enters=20 the
combustion chamber simply drains out the exhaust port(on the = bottom)=20
and since the plugs are at the highest point, there is less = likelihood=20
of any liquid gas entering into the spark plug cavity and drowning = the=20
plugs. This is the reason why flooding is not a significant event = for=20
the plugs up.

Ed ------=_NextPart_000_001B_01C7B753.96EF4420--