Newsgroups: sci.aeronautics.airliners Path: news From: barnett@convex.com (Paul Barnett) Subject: Re: Tire burn-out during landings X-Submission-Date: Wed, 30 Dec 1992 15:37:40 GMT References: Message-ID: Approved: kls@ohare.Chicago.COM Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA Sender: kls@ohare.Chicago.COM X-Submission-Message-Id: Date: 30 Dec 92 11:20:04 PST In yarvin-norman@CS.YALE.EDU (Norman Yarvin) writes: >In any case, the practicality of preventing tires from disintegrating >depends on how fast tires presently disintegrate. How much matter really is >there in that cloud of smoke? Perhaps a gram per cubic meter of smoke? And >how much tire is left on the runway? Do they have to go out and scrape it >off now and then? (I imagine not.) Seems to me the loss of tire material >is negligible also. Compared, that is, with the other costs of running the >airplane. Actually, yes, they do go out and "scrape" it off now and then. One popular method is very high pressure water jets. Having said that, I will comment that the most convincing argument I have heard so far is that the additional weight added by any spin-up system would negate any reduction in tire wear. -- Paul Barnett MPP OS Development (214)-497-4846 Convex Computer Corp. Richardson, TX