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%