From: Ryan Gill (rmgill@mindspring.com)
Date: Tue Aug 02 2005 - 13:45:41 PDT
At 2:21 PM -0500 8/2/05, MV wrote:
>Actually that is probably not true. Disk brakes typically require a lot more PSI than drum brakes to get the same amount of braking action. Disk brakes on a trailer typically require about 1500 psi - the equivalent drum brakes require only about 800 psi or about half the pressure. I'd bet that the brake system in a duece or 5 ton operate at a lot less than a 1000 psi.
I think the advantage of Disc Brakes is that they operate over a greater range of pressure allowing for finer actuation and quality of stopping power short of lockup. Isn't there a better total locking force available on Disc brakes?
At leats, that's what I seem to recall from reading too many Motorcycle magazines discussing the old days of leading shoe front drum brakes made by lockheed and it's ilk as compared to later technology disc brakes.
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