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- Path: sparky!uunet!haven.umd.edu!mimsy!nocusuhs!nmrdc1!cbda8.apgea.army.mil.!jmmatthe
- From: jmmatthe@apgea.army.mil (Jeffrey M. Matthews <jmmatthe>)
- Newsgroups: sci.aeronautics
- Subject: Re: Tire burn-out on landings
- Message-ID: <1992Dec22.134841.8873@apgea.army.mil>
- Date: 22 Dec 92 13:48:41 GMT
- References: <1992Dec18.180933.15387@unlv.edu>
- Organization: CRDEC APG
- Lines: 25
-
- In article <1992Dec18.180933.15387@unlv.edu> todamhyp@unlv.edu (Brian M. Huey) writes:
- >I realize this a relatively basic question (I think) nevertheless:
- >
- > I am neither a pilot nor an airliner engineer. However,
- >everytime I watch a airliner land, a cloud of smoke is produced when
- >the wheels come in contact from the ground due to friction. Couldn't
- >this cloud and the effect of friction be lessened by inducing a
- >angular velocity upon the wheels to match the airliners speed with
- >respect to the runway?
- >
- Back a while ago (fifties or sixties?) tires were available with radial
- pockets which were to perform that function. I believe they fell into dis-
- use because they didn't turn the tire fast enough (whacking a tire turning
- 50 mph onto a runway at 100 mph isn't much improvement over one that isn't
- turning). Also, they would have been nasty to recap, a big factor in tire
- design for the airlines.
-
- Rubber is considered a consumable, just like fuel. There are a lot of
- other factors which limit a tire's life--braking heat to mention one.
-
- That's a good observation, though. I'm glad somebody questions the
- validity of that movie cliche.
-
- J. Matthews
- Standard Disclaimers Apply
-