Originally Posted by alexban
Milt, Boeing says that in case of hot brakes,for ex high speed RTo, use of parking brakes should be avoided.What would be the reason for this,in your oppinion?
Ok, so my knowledge of this comes from racing cars - but the brake tech's pretty similar, so I'm extrapolating.. You don't leave your foot on the pedal when you've stopped with (very) hot brakes because you get a hot spot where the pads are in contact, that leads to differential cooling, which is quite likely to warp iron discs. It's not just about airflow, but thermal inertia (I admit I don't clearly understand *how* the thermal inertia effects things). But the small airgap makes a difference. Maybe a red herring in this case...