Originally Posted by kcaravelli
If you use the emergency brake properly, the truck mechanic who explained this to me felt that I should normally be able to slow down the coach significantly with this brake. It operates completely independent of the brakes on the wheels. It is supposed to have quite a lot of stopping power. Kirkland, WA
I don't think we missed your point that the parking brake was only another option that could be used in an emergency. We were trying to explain that the stopping power it could provide is minimal. The mechanics statement is optomistic to say the least. I doubt that the parking brake could make much of a difference at any speed faster than slow roll.
There have been numerous posts in the past about people who didn't realize the brake was on when they started driving. In several of those posts the brake shoes and the drum were destroyed beyond repair. All this damage happened and the operator wasn't even aware that the brake was engaged so don't expect it to provide much stopping power.