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UTLX X design dimensions

Earl Tuson
 

The 1906 CBD has plans for 6,000 gal UTLX X design tank cars:

https://archive.org/details/carbuildersdict00mast/page/n315

This drawing shows the bolster centers to be 17’, and the 5 horizontal course 76” ID tank length to be 25’
(26’6” over the heads.)

PBL makes very high quality Sn3 equipment. Their 6,000 gallon tank molding is used in their Type V kit
and their modified, wide frame, Type X (converted by the prototype from normal standard gauge Type X
cars.) However, the PBL 3 horizontal course tank is ~77.5” OD but 26’6” long (28’ over the heads,) with
19’ bolster centers.

Can anyone offer insight into these apparent discrepancies?

Earl Tuson
Steve and Barb Hile
 

Although the early class X cars were about 6000 gallons capacity, most built later were 6500 gallon capacity and had 3 radial courses on the upper tank. Those converted to narrow gauge service were most likely these slightly larger and later tanks. Some details are in the book, but I did not attempt to define the narrow gauge usages, as there were several renumberings and a few cars that were designated as convertible (Class V cars) that could ride on either narrow or standard gauge trucks when required. There is a pretty complete roster from 1952 in the files section of this list. Those swing cars, I believe, are in the 55xxx range while the X cars are in the 88xxx series.  See https://realstmfc.groups.io/g/main/files/UTLX%201-1952%20TANK%20CAR%20LIST.pdf.

In HO the old MDC tank with Shapeways underframe and running boards models the 6000 gallon cars fairly well.

Steve Hile


-----Original Message-----
>From: Earl Tuson
>Sent: Mar 18, 2019 7:25 PM
>To: main@RealSTMFC.groups.io
>Subject: [RealSTMFC] UTLX X design dimensions
>
>The 1906 CBD has plans for 6,000 gal UTLX X design tank cars:
>
>https://archive.org/details/carbuildersdict00mast/page/n315
>
>This drawing shows the bolster centers to be 17’, and the 5 horizontal course 76” ID tank length to be 25’
>(26’6” over the heads.)
>
>PBL makes very high quality Sn3 equipment. Their 6,000 gallon tank molding is used in their Type V kit
>and their modified, wide frame, Type X (converted by the prototype from normal standard gauge Type X
>cars.) However, the PBL 3 horizontal course tank is ~77.5” OD but 26’6” long (28’ over the heads,) with
>19’ bolster centers.
>
>Can anyone offer insight into these apparent discrepancies?
>
>Earl Tuson
>
>
>
>
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