Date: 08 Sep 97 02:03:41 From: email@example.com (Louis A. Ramsay) Organization: Netcom References: 1 2
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In <airliners.1997.2041@ohare.Chicago.COM> "Richard Isakson" <firstname.lastname@example.org> writes: >Peter <email@example.com> wrote in article <airliners.1997.2019@ohare.Chicago.COM>... > 1: what exactly needs to cool down after such a heavy brake >.application? Is it the hydraulic fluid or the brake discs and pads >>themselves? I dont understand why hot brake surfaces should work >>less effectively than cold ones, unless they melt or something Some years ago, Seaboard-World had a section in their Operations Manual that listed various gross weights for the different type aircraft they were operating. If you landed ABOVE that weight, (and we are talking just a normal landing) the aircraft was required to sit on the ground for 50 minutes to an hour to allow the brakes to cool before the next taxi and takeoff. (You can well imagine the difference in heat from an aborted- or rejected-takeoff as opposed to a "normal" landing.) There was no provision for decreasing the amount of "rest" even if you assisted the cooling process with either fans or air-conditioner blowers. As our company prided itself on minimum-time turn arounds for refueling, Seaboard-World's rule wuld sort of "frost" the refueling crew. They would get the plane refueled in record time, but then watch the plane sit out the hour until it was again "legal" to start taxiing. Lou.