[PRCo] New PCC truck

[Phillip Clark Campbell]

> ----- Original Message ----
> From: TEP <tompark at telus.net>
> To: pittsburgh-railways at dementia.org
> Sent: Monday, May 26, 2008 12:49:31 PM
> Subject: [PRCo] Re: OT: Comprehensive LRV show
>
> I've attached a picture of the PCC derived truck but the video at 250MB 
> is too big to post. The ballpark quote was around half a million per car 
> --oops make that $600,000 to allow for the fallen US dollar. The quality 
> and durability has improved from the Soviet era but is still not to 
> Western standards.
> 
> /Tom Parkinson P.Eng, Vancouver BC Canada 604-733-5430, fax -5437/
> 
http://lists.dementia.org/files/pittsburgh-railways/SPBogie.jpg

Mr.Parkinson:

This appears not unlike the LATL B1 but adapted for standard gauge with the biggest difference being springing over the axles like the B2.  The frame is rigid like the B1 isn't it so the B2 torque arms are not needed and the spring pot is singular like the B3 instead of dual.  Axles are open abut gearing is obviously enclosed isn't it.  Does the bolster bolt or similarly attach to the car body?  Is there separate springing at the motor mounts?  Should this be designated the B1-2-3?(:--)>  Thank You for this photo.

Mr.Cefer:

Is there compensation in PCC trucks for turns on sharp radii?  The actual linear distance traveled on each rail is different isn't it - shorter on inside rail than outside.


Phil