Bill,
Thanks again, just took some dimensions & did the calc as you suggested.
Results make sense. For MGA drum brakes, two leading shoe (front) creates
25% more braking force than one leading/one trailing (rear), at assumed
lining c.o.f. of 0.3. At c.o.f. of 0.4, 2-lead is 35% more braking force.
These results agree closely with a graph of an unknown brake in Puhn "Brake
Handbook" (he shows +25% @ 0.3, +42% @ 0.4)
Thanks again for the tip.
Regards,
Mark
>From: WMW79@aol.com
>To: mgvrmark@hotmail.com, vintage-race@autox.team.net
>Subject: Re: Request for brake & tire data
>Date: Tue, 31 Jul 2001 12:59:43 EDT
>
>Mark:
>Just take moments around the pin with the
>friction force assumed to be concentrated at the mid-point of the shoe.
>Bill Watkins
_________________________________________________________________
|