Re: one of N&W's battleship gons on the New Haven
Normally, the extremes of side roll forces of the body are taking up through the bolsters. With six-wheel trucks the contact plates are more-inboard (because of the center wheels) than with 4-wheel trucks . . . unless you take the loading points out to the truck side-frames. The Virginian had 106-ton (Class 120-ton) cars with larger journal bearings, the C&O 91-ton (Class 100-ton) cars, and the N&W had 90-ton and 100-ton (Class 100-ton) cars. The C&O was the most conservative on allowable heaping.of coal (10" capped at 30 degrees vs straight uncapped, peaked 30-degrees). The GS's were allowed to twist more than other cars that were designed to react shorter cross-bearing loads on a beefier cross-bar in the body bolster assemblies.
Al Kresse
To: STMFC@...
Sent: Tuesday, February 11, 2014 12:44:52 PM
Subject: Re: [STMFC] RE: one of N&W's battleship gons on the New Haven
Al, what does "taking rolling or rocking bolster loads through the
side-sills through adjustable wear plates." mean? is that a means to unload
without a rotary dumper? Curious.
Clark Cone
loves Pennsy coal trains
On Tue, Feb 11, 2014 at 10:14 AM, wrote:
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> Hey David,
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> Happy new Year!
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> I believe these were "over-light-weighted" so they could be truly called
> 100-ton cars (versus 90-tons for other N&W gons). They relied on taking
> rolling or rocking bolster loads through the side-sills through adjustable
> wear plates. They were last-built and first scrapped.
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> Al Kresse
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> ------------------------------
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> *From: *jaydeet2001@...
> *To: *STMFC@...
> *Sent: *Monday, February 10, 2014 3:39:46 PM
> *Subject: *[STMFC] RE: one of N&W's battleship gons on the New Haven
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> Yep, N&W class GS built in 1920 and retired in the mid-30s. Looks like the
> top eave is rather wobbly on that one.
> http://www.nwhs.org/archivesdb/detail.php?ID=19939
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> Hope New Haven had a big rotary dumper somewhere.
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> David Thompson
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