CARBON BRAKES

[manuel ortiz]

Does anybody know if carbon brakes like the ones the Airbus 320 uses tend to bind more
or less compared to the regular ones after
an aborted take of which would require the parking brake to be left on ?
I have seen a few cases where crews set the parking brakes after a rejected T/O just to
find out after releasing them that they are
like "welded together" as is easy to imagine
and wonder if carbon brakes would be more or
less prone for this to happen.

[Mark Harris]

Manuel, the concept of carbon brakes is for weight and greater resistance to wear. They do become more efficient at higher temps, (ala formula 1) however they will weld together like a steel brake after an aborted T/O if left on. Gives us engineers a tech delay as well as changing all the wheels as they will more than likely have their fuse plugs melted.
Hope that helps.