X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 04 Jan 2008 19:55:40 -0500 Message-ID: X-Original-Return-Path: Received: from smtp115.sbc.mail.sp1.yahoo.com ([69.147.64.88] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with SMTP id 2630934 for lml@lancaironline.net; Fri, 04 Jan 2008 11:46:40 -0500 Received-SPF: none receiver=logan.com; client-ip=69.147.64.88; envelope-from=elippse@sbcglobal.net Received: (qmail 34832 invoked from network); 4 Jan 2008 16:45:59 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:Message-ID:From:To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=Sppe4zAd/jOVfiINLCgg1rJwN7do6fBN+nYhv5LySNAz/AGxt4nWEwUpXGClluoICg5pEI6LVBm9x4hzFczSTT6b7jbKOo9Puc9iwLyth2x0d5lSmCk1Q0bFA+B85Apxsh4Wpc9a0rjRPstrK+vJNg7KhFqq+hVH2ks3rj0QB7Y= ; Received: from unknown (HELO Computerroom) (elippse@sbcglobal.net@75.15.126.15 with login) by smtp115.sbc.mail.sp1.yahoo.com with SMTP; 4 Jan 2008 16:45:58 -0000 X-YMail-OSG: JFVBzqEVM1kgyf7Blmk8PVpj4aqeUP6MC9n8DC16JsmXB2rf6yr842owulSl.Ud9SDrrVxygDg-- X-Original-Message-ID: <000901c84ef1$4c9afe10$0f7e0f4b@Computerroom> From: "Paul Lipps" X-Original-To: "Marv Kaye" Subject: Mag-EI X-Original-Date: Fri, 4 Jan 2008 08:46:03 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C84EAE.3D03E2C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C84EAE.3D03E2C0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable The higher the pressure in the cylinder, the greater the dielectric = strength, which means it will take a higher voltage to jump the gap. Get = the pressure high enough and the spark can't jump it, but if there is = any weakness in the plug wires, contaminated cigarette in the plug, or = a better breakdown path in the mag rotor or coil windings, there will be = a mis-fire. That's why rough-running sometimes occurs at full throttle. = With sparks jumping the rotor or the coil windings, there can be = carbonizing paths that will eventually cause mag failure! That's why it = is necessary to pressurize the magnetos and use the H-version plugs with = the wider well at higher altitudes. One thing that hasn't been mentioned = yet is that once the plug fires, it takes 1/6 to 1/8 less voltage to = jump the gap. In the Plasma II, with bi-polarity sparks lasting 20 deg. = , that should provide plenty of over-lap for the lower gap = breakdown-voltage resulting from the ionized gases at the other plug for = the mag to fire into. BTW. Klaus' Plasma has been approved in France for = a production heli. Watch for the press release! ------=_NextPart_000_0006_01C84EAE.3D03E2C0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
The higher the pressure in the cylinder, the = greater the=20 dielectric strength, which means it will take a higher voltage to jump = the gap.=20 Get the pressure high enough and the spark can't jump it, but if there = is any=20 weakness in the plug wires,  contaminated cigarette in the plug, or = a=20 better breakdown path in the mag rotor or coil windings, there will be a = mis-fire. That's why rough-running sometimes occurs at full = throttle. With=20 sparks jumping the rotor or the coil windings, there can be carbonizing = paths=20 that will eventually cause mag failure! That's why it is necessary = to=20 pressurize the magnetos and use the H-version plugs with the wider well = at=20 higher altitudes. One thing that hasn't been mentioned yet is that once = the plug=20 fires, it takes 1/6 to 1/8 less voltage to jump the gap. In the = Plasma II,=20 with bi-polarity sparks lasting 20 deg. , that should provide plenty of=20 over-lap for the lower gap breakdown-voltage resulting from = the=20 ionized gases at the other plug for the mag to fire = into. BTW.=20 Klaus' Plasma has been approved in France for a production heli. Watch = for the=20 press release!
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