Quote:
Originally Posted by Orv
Trucks are also using drum brakes, so additional airflow isn't going to help much. I've frequently seen truck brakes literally smoking hot after just a freeway panic stop. The strategy for trucks seems to be to use extremely large, heavy drums and rely on thermal mass. For long downgrades they depend heavily on engine braking to supplement the wheel brakes. Perhaps not coincidentally, runaway truck ramps are a common feature of mountainous stretches of highway.  |
Let me clarify, im talking about NPR's, P-vans, that kind of stuff, about the size of a UPS truck vs a tractor trailer rig. In those applications, most are using front and rear disc brakes completely shielded by the wheel