May I Nit-Pick?

[Jim Holland]

Greetings!

	ALL the information I have always lists maximum acceleration as 4.75
m.p.h.p.s. and also the very same for maximum service braking; total
emergency braking approached 9.0 m.p.h.p.s.

Fred Schneider wrote:
> 
> You're right.  I should have remembered that Dad's 1939 Chevy had
> overhead valves.  And I'll pick at myself too.  I see I said 4.75 mphps
> when I think it was 4.25 mphps.  Regardless, either is damn fast out of
> the gate for a rail car.  Especially when a Model A Ford probably did
> somewhere around 2.
> 
> -----Original Message-----
> From: Kenneth and Tracie Josephson [mailto:kjosephson at sprintmail.com]
> Sent: Thursday, November 04, 1999 2:26 AM
> To: pittsburgh-railways at dementia.org
> Subject: May I Nit-Pick?
> 
> Fred Schneider wrote:
> 
> > The 1936 car would accelerate at peak rate of 4.75 miles per hour per
> > second until in reached approximately 15 miles per hour ... enough to
> > get through the intersection ahead of a Chevy with a flathead six.
> 
> Just a minor technical point: No Chevrolet ever had a flathead six. The
> Chevrolet six introduced during the late 1920's always had overhead
> valves. My 1959 Plymouth, however, has a flathead six. And I do believe
> a PCC could definitely beat it off the line from a stop sign! :-) Ken J.

James B. Holland
------- -- ---------
        Pittsburgh Railways Company (PRCo), June of 1949 -- June of 1953
    To e-mail *off-list,* please click here: mailto:pghpcc at pacbell.net
N.M.R.A.  Life member #2190; http://www.mcs.net:80/~weyand/nmra/