X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [199.185.220.220] (HELO priv-edtnes56.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 932742 for flyrotary@lancaironline.net; Wed, 04 May 2005 17:06:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=199.185.220.220; envelope-from=echolakeresort@telus.net Received: from boucher-oddle24 ([207.194.127.122]) by priv-edtnes56.telusplanet.net (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20050504210551.LVBJ13983.priv-edtnes56.telusplanet.net@boucher-oddle24> for ; Wed, 4 May 2005 15:05:51 -0600 Received: from 127.0.0.1 (AVG SMTP 7.0.308 [266.11.4]); Wed, 04 May 2005 14:05:49 -0700 Message-Id: <42793929.000004.02424@BOUCHER-ODDLE24> Date: Wed, 4 May 2005 14:05:45 -0700 (Pacific Standard Time) X-Mailer: IncrediMail (3001609) From: "Echo Lake Fishing Resort (Georges Boucher)" References: To: Subject: Re: [FlyRotary] Re: Circuit breaker article X-FID: FLAVOR00-NONE-0000-0000-000000000000 X-Priority: 3 Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=======AVGMAIL-4279392D4CB3=======" --=======AVGMAIL-4279392D4CB3======= Content-Type: Multipart/Alternative; boundary="------------Boundary-00=_L9HZBHK0000000000000" --------------Boundary-00=_L9HZBHK0000000000000 Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Ian =0D 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 w= ith so there is no emergency situation in there case.=0D Georges=0D =0D -------Original Message-------=0D =0D From: Rotary motors in aircraft=0D Date: 05/04/05 13:36:08=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: Circuit breaker article=0D =0D Since this all started with Rusty's fuel pump problem I thought that this little quote form the big iron manufacturers would be of interest ;-)=0D =0D =46rom Boeing: "Resetting circuit breakers is not generally a requirement= in flight. However, a tripped circuit breaker (other than a fuel pump C/B) m= ay be reset at the Captain's discretion, after a short cooling period (approximately 2 minutes). If it trips again no further attempt is to be made to reset that C/B." =0D =0D =46rom the Airbus Flight Crew Operating Manual for the A300/310/319/320/3= 21:=20 In flight, the flight crew must not reengage a tripped C/B. On the ground= if the pilot coordinates the action with maintenance he may reengage a tripp= ed C/B provided the cause of the tripped C/B is identified." =0D =0D My Source - http://www.aviationtoday.com/reports/alpa_faa.htm=0D =0D Perhaps the best feature a fuse brings to the table is some extra loot to pay for planned redundancy in critical systems, and the removal of the temptation to start and electrical fire in flight.=0D =0D -- Ian=0D -----Original Message-----=0D From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Bill Dube=0D Sent: Wednesday, May 04, 2005 3:04 PM=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: Circuit breaker article=0D =0D =0D =0D =0D Interesting article, Mark. I think it supports use of fuses, and redunda= ncy in critical circuits. =0D =0D The word "fuse" appears nowhere in the article. =0D =0D >> Homepage: http://www.flyrotary.com/=0D =0D >> Archive: http://lancaironline.net/lists/flyrotary/List.html=0D =0D =20 --------------Boundary-00=_L9HZBHK0000000000000 Content-Type: Text/HTML; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
 Ian
I would think that in the case of airliners they have so many redund= ant systems that if one goes down they have two or three others to c= ontinue with, so there is no emergency situation in there case.
Georges
 
-------Original Message-------
 
Date: 05/04/05 13:= 36:08
Subject: [FlyRotar= y] Re: Circuit breaker article
 
Since this all started with Rusty's fuel pump problem I thought = that this little quote form the big iron manufacturers would be of intere= st ;-)
 
= =46rom Boeing: "Resetting circuit breakers is not generally a re= quirement in flight. However, a tripped circuit breaker (other th= an a fuel pump C/B) may be reset at the Captain's discretion, af= ter a short cooling period (approximately 2 minutes). If it trips again n= o further attempt is to be made to reset that C/B." =
 
From the Airbus Flight Crew= Operating Manual for the A300/310/319/320/321: "In flight, the = flight crew must not reengage a tripped C/B. On the ground if the pilot c= oordinates the action with maintenance he may reengage a tripped C/B prov= ided the cause of the tripped C/B is identified."
 
 
Perhaps the best feature a fuse brings to the table is some extr= a loot to pay for planned redundancy in critical systems, and the re= moval of the temptation to start and electrical fire in flight.
 
-- Ian
-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Bill Dub= e
Sent: Wednesday, May 04, 2005 3:04 PM
To: Rotary mo= tors in aircraft
Subject: [FlyRotary] Re: Circuit breaker artic= le

 
Interesti= ng article, Mark.  I think it supports use of fuses, and redundancy = in critical circuits.

        = ;The word "fuse" appears nowhere in the article. 

>>  Homepage:  http://www.flyrotary.com/

>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
 
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