X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from m15.nyc.untd.com ([64.136.22.78] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with SMTP id 932756 for flyrotary@lancaironline.net; Wed, 04 May 2005 17:20:48 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.136.22.78; envelope-from=jbker@juno.com Received: from m15.nyc.untd.com (localhost [127.0.0.1]) by m15.nyc.untd.com with SMTP id AABBHURDZA3GAQN2 for (sender ); Wed, 4 May 2005 14:19:51 -0700 (PDT) X-UNTD-OriginStamp: Y+Mfppm2QyGfnY/dq+iW1f77k3l+ZPczcOTN+5PmiosmgA6/ZbQNgQ== Received: (from jbker@juno.com) by m15.nyc.untd.com (jqueuemail) id KR7F9Z27; Wed, 04 May 2005 14:18:54 PDT To: flyrotary@lancaironline.net Date: Wed, 4 May 2005 17:17:47 -0400 Subject: Re: [FlyRotary] Re: Circuit breaker article( redundancy power) Message-ID: <20050504.171747.2832.6.JBKER@juno.com> X-Mailer: Juno 5.0.33 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=--__JNP_000_25a0.6d74.39ac X-Juno-Line-Breaks: 8-6,7,10-13,20-21,23-24,25-32767 From: WALTER B KERR X-ContentStamp: 7:3:1707483204 This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ----__JNP_000_25a0.6d74.39ac Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Ian I would think that in the case of airliners they have so many redundant systems that if one goes down they have two or three others to continue with, so there is no emergency situation in there case. Georges ------------------------------------------------------------------------- You do not have to have more than one level of redundancy to basically eliminate any chance of total failure of the system with failures in the 1000 hour range such as fuses as long as the pilot has time to try the backup system? I will take reduncancy ever day of the week compared to a single CB circuit albeit it I have parallel master switch circuit breaker's but I do not intend to reset one as long as the other is working :>) I know we are not changing anyone's veiws on CB vs fuses, but it has been an interesting dialogue. Bernie ----__JNP_000_25a0.6d74.39ac Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: quoted-printable

Ian

I would think that in the case of airliners they have so many=20 redundant systems that if one goes down they have two or three = others=20 to continue with, so there is no emergency situation in there case.

Georges

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You do not have to have more than one level of redundancy to=20 basically eliminate any chance of total failure of the system with=20 failures in the 1000 hour range such as fuses as long as the = pilot=20 has time to try the backup system? I will take reduncancy ever day of= the=20 week compared to a single CB circuit albeit it I have parallel master= =20 switch circuit breaker's but I do not intend to reset one as long as = the=20 other is working :>)

I know we are not changing anyone's veiws on CB vs fuses, but it= has=20 been an interesting dialogue.

Bernie

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