X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail.theofficenet.com ([65.166.240.5] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with SMTP id 933052 for flyrotary@lancaironline.net; Wed, 04 May 2005 22:38:33 -0400 Received-SPF: none receiver=logan.com; client-ip=65.166.240.5; envelope-from=jackoford@theofficenet.com Received: (qmail 10596 invoked from network); 5 May 2005 02:22:40 -0000 Received: from dpc691941229.direcpc.com (HELO toshibauser) (69.19.41.229) by mail.theofficenet.com with SMTP; 5 May 2005 02:22:40 -0000 Message-ID: <007001c5511b$6c091ab0$0700a8c0@toshibauser> From: "Jack Ford" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Circuit breaker article( redundancy power) Date: Wed, 4 May 2005 19:37:37 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006D_01C550E0.BA32B970" 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 This is a multi-part message in MIME format. ------=_NextPart_000_006D_01C550E0.BA32B970 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable DC-10, not L1011. ----- Original Message -----=20 From: WALTER B KERR=20 To: Rotary motors in aircraft=20 Sent: Wednesday, May 04, 2005 6:21 PM Subject: [FlyRotary] Re: Circuit breaker article( redundancy power) Jim S wrote: <... 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 ...> You might want to talk to the crew of that 757 or L1011 or whatever it = was that crashed in Souix City(?) a few years back because it lost ONE = of THREE engines and immediately went ballistic. The devil made me say that :o) ... Jim S. -------------------------------------------------- As a matter of fact , I have talked to Captain who servived this = ordeal with great cockpit resource management. It was a terrible design = that triggered this whole episode because all hydraulic lines were = bundled. Reduncancy was not a factor here. Be the way, it was a GE fan = failure that was not contained! I think the devil made me say that = also:>) Bernie Kerr, 33 years as a gas turbine design and systems engineer at = Pratt ------=_NextPart_000_006D_01C550E0.BA32B970 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
DC-10, not L1011.
----- Original Message -----
From:=20 WALTER B = KERR
Sent: Wednesday, May 04, 2005 = 6:21=20 PM
Subject: [FlyRotary] Re: = Circuit breaker=20 article( redundancy power)

Jim S wrote:
 

<... You do not have to have more than = one level=20 of redundancy to basically eliminate any chance of total failure of = the system=20 with failures in the 1000 hour range ...>
You might want to talk = to the=20 crew of that 757 or L1011 or whatever it was that crashed in Souix = City(?) a=20 few years back because it lost ONE of THREE engines and immediately = went=20 ballistic.

The devil made me say that :o) ... Jim = S.
 
--------------------------------------------------=
 
As a matter of fact , I have talked to = Captain who=20 servived this ordeal with great cockpit resource management. It was a = terrible=20 design that triggered this whole episode because all hydraulic lines = were=20 bundled. Reduncancy was not a factor here. Be the way, it was a GE fan = failure=20 that was not contained! I think the devil made me say that=20 also:>)
 
Bernie Kerr, 33 years as a gas turbine = design and=20 systems engineer at Pratt
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