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Gary Casey wrote:
Snip..
I don't know what a brake rotor weighs, but I'll guess 5
pounds. One thing I couldn't find is the specific heat of cast iron, but
most steel alloys have a specific heat of between 0.1 and 0.14, so I'll
pick
0.12. The temperature rise during a braking event is then
BTU/(sp.ht.Xlbm),
or about 1,000 degrees F. The brake temperature at the beginning could be
100, but if you drag the brakes a lot during taxi, heating them up to
maybe
500 and then do a rejected takeoff, you could see 1500 degrees.
Gary
Question for you. Is this Calculated w/ 2 disks or just one? I couldn't
follow all your math[Its way beyond me] but it would seem that the kinetic
energy of the a/c is absorbed by two rotors so does this mean that there is
infact 1/2 the energy stated? Or did I just miss that fact that you had
included that two disks [ Wouldn't be the first time I missed something!].
I'm not building a IV but I'm curiously following this discusion and
couldn't help asking.
Jarrett
235/32- 55%
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