[Phys-L] Re: Stopping Distance

[Rick Tarara <rtarara@SAINTMARYS.EDU>]

I don't know all the details, but talking to 'the engineer', trailer trucks
are different from single bodied trucks and busses.  The controller is in
the cab, but the braking signal has to be transferred quite a
ways--especially in two and three trailer rigs.  Anyway, there is a
government standard on the allowable delay.  He is going to look that up to
be sure exactly what kind of delay times can be expected/allowed.

Rick
----- Original Message -----
From: "Michael Edmiston" <edmiston@BLUFFTON.EDU>


> I don't understand the comments about air pressure having to build up to
> provide braking.  Unless things have changed since I did a lot of
> driving with air brakes, the braking pressure comes from springs, and
> the air pressure is required to release the brakes.  Air-pressure
> failure results in the brakes begin applied rather than resulting in no
> brakes.  I believe this is the way it works on buses, trucks, as well as
> trains.
_______________________________________________
Phys-L mailing list
Phys-L@electron.physics.buffalo.edu
https://www.physics.buffalo.edu/mailman/listinfo/phys-l