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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
-------Original Message-------
Date: 05/04/05 13:36:08
Subject: [FlyRotary] 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 interest ;-)
From Boeing: "Resetting circuit breakers is not generally a requirement in flight. However, a tripped circuit breaker (other than a fuel pump C/B) may 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."
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 coordinates the action with maintenance he may reengage a tripped C/B provided the cause of the tripped C/B is identified."
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.
-- Ian
Interesting article, Mark. I think it supports use of fuses, and redundancy in critical circuits.
The word "fuse" appears nowhere in the article.
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