And the weight of the cast truck is? Bolster? (was Weight Of A Freight Car Wheel?)


Dave Nelson
 

Thank you all for the thoughts on the weight of a cast wheel. 

 

What is the weight of a truck side frame?

 

A truck bolster?

 

I ask because I’d like to estimate where the center of gravity lies in various empty cars.

 

Thanks in advance for any answers,

 

Dave Nelson


Tony Thompson
 

Dave Nelson] wrote:

 
Thank you all for the thoughts on the weight of a cast wheel. 

 What is the weight of a truck side frame?

 A truck bolster?


  Dave, you might enjoy my article in _Model Railroad Hobbyist_ in the issue for September 2016 (download or read on line, for free, any time, at their website, www.mrhmag.com ). You will find all this discussed there. Bolsters weighed 1000 pounds or more, as did side frames, and then add the spring planks (if any), spring packages, and brake linkage. Most freight trucks in the transition era weighed between 12,000 and 14,000 pounds.

Tony Thompson             Editor, Signature Press, Berkeley, CA
2906 Forest Ave., Berkeley, CA 94705         www.signaturepress.com
(510) 540-6538; e-mail, tony@...
Publishers of books on railroad history






jace6315
 

Tony,

Are you sure about those weights? Not quite apples to apples but a built up three piece 70-ton roller bearing truck with truck mounted cylinders and 34" wheels weighs 8,500-9,000 pounds (I have the exact weight somewhere). 50-ton trucks are 750-1,000 pounds less while 100-ton trucks on 1,000-1,500 pounds more.

Jim Matthews


--------------------------------------------

On Thu, 10/5/17, Tony Thompson tony@... [STMFC] <STMFC@...> wrote:

Subject: Re: [STMFC] And the weight of the cast truck is? Bolster? (was Weight Of A Freight Car Wheel?)
To: STMFC@...
Date: Thursday, October 5, 2017, 2:39 AM

  Dave, you might enjoy my article in
_Model Railroad Hobbyist_ in the issue for September 2016
(download or read on line, for free, any time, at their
website, www.mrhmag.com ). You will
find all this discussed there. Bolsters weighed 1000 pounds
or more, as did side frames, and then add the spring planks
(if any), spring packages, and brake linkage. Most freight
trucks in the transition era weighed between 12,000 and
14,000 pounds.

Tony Thompson          
  Editor, Signature Press, Berkeley, CA2906 Forest Ave., Berkeley, CA
94705         www.signaturepress.com(510) 540-6538; e-mail, tony@... of books on railroad
history
















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Benjamin Hom
 

James Matthews wrote:
"Are you sure about those weights? Not quite apples to apples but a built up three piece 70-ton roller bearing truck with truck mounted cylinders and 34" wheels weighs 8,500-9,000 pounds (I have the exact weight somewhere). 50-ton trucks are 750-1,000 pounds less while 100-ton trucks on 1,000-1,500 pounds more."

Heavy enough to squash a Terminator, though this takes place well after the era of this list. ;)


Ben Hom


destorzek@...
 




---In STMFC@..., <b.hom@...> wrote :

Heavy enough to squash a Terminator, though this takes place well after the era of this list. ;)


Ben Hom
==================

Yeah, but the Terminator is chintzy post 2000 construction.

When I looked at Tony's numbers, I decided they work... for a PAIR of trucks with wheel sets.

Dennis Storzek


John Barry
 

Although the Terminated Truck may have been manufactured during our time frame.  Note the journal covers on the truck, normally on plain bearing devices for supporting STMFCs on rails.
 
John Barry
 
ATSF North Bay Lines 
Golden Gates & Fast Freights 
Lovettsville, VA

707-490-9696 

PO Box 44736 
Washington, DC 20026-4736



From: "Benjamin Hom b.hom@... [STMFC]" To: "STMFC@..."
Sent: Thursday, October 5, 2017 5:08 PM
Subject: Re: [STMFC] And the weight of the cast truck is? Bolster? (was Weight Of A Freight Car Wheel?)

 
James Matthews wrote:
"Are you sure about those weights? Not quite apples to apples but a built up three piece 70-ton roller bearing truck with truck mounted cylinders and 34" wheels weighs 8,500-9,000 pounds (I have the exact weight somewhere). 50-ton trucks are 750-1,000 pounds less while 100-ton trucks on 1,000-1,500 pounds more."

Heavy enough to squash a Terminator, though this takes place well after the era of this list. ;)


Ben Hom




Tony Thompson
 

Dennis Storzek wrote:

 

When I looked at Tony's numbers, I decided they work... for a PAIR of trucks with wheel sets.


Wasn't that the question?

Tony Thompson             Editor, Signature Press, Berkeley, CA
2906 Forest Ave., Berkeley, CA 94705         www.signaturepress.com
(510) 540-6538; e-mail, tony@...
Publishers of books on railroad history






Jack Mullen
 

It appears that the Terminating Truck is a swing-motion truck - You can see the parallel transoms and bolster between them at 2:01 in the clip. It should have significantly more mass than the standard three-piece truck, though one of those would have been just as effective.

Of course, Dave's question was about WEIGHT, so while it's falling, almost zero.

BTW, I've heard and used the expression "I feel like I've been hit by a truck", but it never had that much impact.

Jack Mullen


Dave Nelson
 

Apologies for the late reply but thank you very much!

 

Dave Nelson

=======================

From: STMFC@... [mailto:STMFC@...]
Sent: Wednesday, October 04, 2017 11:40 PM


Dave Nelson] wrote:



 

Thank you all for the thoughts on the weight of a cast wheel. 

 What is the weight of a truck side frame?

 A truck bolster?

 

  Dave, you might enjoy my article in _Model Railroad Hobbyist_ in the issue for September 2016 (download or read on line, for free, any time, at their website, www.mrhmag.com ). You will find all this discussed there. Bolsters weighed 1000 pounds or more, as did side frames, and then add the spring planks (if any), spring packages, and brake linkage. Most freight trucks in the transition era weighed between 12,000 and 14,000 pounds.

 

Tony Thompson             Editor, Signature Press, Berkeley, CA

2906 Forest Ave., Berkeley, CA 94705         www.signaturepress.com

(510) 540-6538; e-mail, tony@...

Publishers of books on railroad history

Model-Railroad-Hobbiest.com _