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
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Tony Thompson
Dave Nelson] wrote:
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
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jace6315
Tony,
toggle quoted messageShow quoted text
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. 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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
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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
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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
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Tony Thompson
Dennis Storzek wrote:
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
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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
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Dave Nelson
Apologies for the late reply but thank you very much!
Dave Nelson ======================= From: STMFC@... [mailto:STMFC@...] 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 _
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