[PRCo] Re: San Francisco cannot use Pittsburgh cars

[John Swindler]

"We have hills" doesn't necessarily refer to grade.  
 
Perhaps it was the change in grade that was the (perceived) problem???  
 
John
> To: pittsburgh-railways at dementia.org> From: fwschneider at comcast.net> Subject: [PRCo] San Francisco cannot use Pittsburgh cars> Date: Thu, 24 Jul 2008 15:40:26 -0400> > San Francisco cannot use Pittsburgh cars but Oakland loved them. It > has been well documented that Market Street Railway tried and > rejected the Pittsburgh design saying, "We have hills in San > Francisco" ... and those cars don't work on hills.> > You should take a gander at the new book on East Bay Street Railway > by the late Vernon Sappers. All of the last city cars in Oakland, > California were similar conceptually to the Pittsburgh Low Floor cars.> > The 20 center-entrance 700s built by Saint Louis in 1916 (the same > year as 4398 at PTM) had 24 inch wheels in Brill 77E1 trucks, GE 247A > motors (same as the GE low-floor cars in Pittsburgh), and K-35 > control (the same as the cars PRC rebuilt from Jones control to drum > controllers). These cars were rebuilt with end doors and safety car > control in the 1930s to permit one-man operation.> > The 800s, built later, were subsequently lowered.> > The 95 900 series cars built in 1922 also had 24 inch wheels, GE 247 > motors and type M control. The Westinghouse HL control on the > Pittsburgh 3750s, 5000s, 5100s and 5200s is really functionally > similar to GE type M form K in that it uses magnetic solenoid > contactors under the car instead of the usual Westinghouse compressed > air switches.> > So, what could not climb the hillsin San Francisco, could climb then > in the East Bay!!!!> > > 
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