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Date: Sun, 5 Sep 2004 08:38:50 PST
From: (Everett M. Greene)
Subject: Re: Toasted Brakes? (Andrew Stephenson) writes: > "Johannes H Andersen" writes: > > > My previous car, a FIAT Croma once had sticking brakes. At > > first I thought the car was sluggish and the engine needed > > servicing, but the lack of power varied. One evening it was > > very slow, so I stopped the car to have a look. To my surprise, > > the rear discs were glowing red in the early evening twilight. > > A little OT but analogous... Towards the end of a TV documentary > series (Channel 4?) about the development of IIRC the Boeing 777, > we were shown one of the approval tests, of the plane's brakes. > > A 777 was loaded then driven as for normal takeoff. At the point > where flight would have begun, they cut the engines and jammed on > the brakes. To pass, the plane had to come to a halt unaided and > safely, then not catch fire for some quite long period, to allow > for when emergency support could not reach it before passengers > had disembarked. > > The brakes were visibly a _bright_ yellow, even in daylight. Transport category aircraft play in a league of their own. They can't try another takeoff either until the brakes cool enough to do the above again. Does anyone know if there is any kind of performance standard for automotive brakes?

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