[PRCo] Gaps in Numbering

[Phillip Clark Campbell]

----- Original Message ----
> From: John Swindler <j_swindler at hotmail.com>
> To: pittsburgh-railways at dementia.org
> Sent: Wednesday, May 14, 2008 1:03:54 PM
> Subject: [PRCo] Re: MU service on Frankstown
> 
> 
> ....... By the way, you never asked the question of why there were 
> no 5300s??   It might be the same answer as to why there were no volume 
> purchases of 4400s, 4500s and 4600s.  (the low 4400s that did exist were an 
> afterthought)  Or am I the firt to notice this???
> John



Mr. Swindler!


There are a number of gaps in the numbering aren't there.  I remember seeing something about this in the archives but I forget the details now don't I.

3600s
3700s
3750s
3800s

Then jump to
4000s - SE
4100s - SE

4200s DE thru
4400s  DE

then gap to

4700s SE thru
5500s SE


One could guess that 3600 thru 3999 were reserved for Interurbans couldn't one.


It would seem that the intention of the heavy high floors was for trailer pulling thus SE equipment was necessary.  Then the numbering continues with DE equipment, gap, then back to SE equipment doesn't it.

3700s were presumably built from what was learned with the 3556 experiment.  While the 3750s were otherwise identical to all the city low floor cars they were purchased for Charleroi service according to Mr.Baxter weren't they and they are kissing cousins to the 3700s so are numbered in this block.  Thus the listing here for 3750s rather than numbering consistent with other low-floors.  The PCCs were so distinctly different from other equipment that it could be guessed that Interurbans and City cars
 were numbered with the PCCs but could otherwise have been something like this:  1601s for Interurban usage as 3900s and 1700--1724 as 3950s!!!


Phil