Re: [Non-DoD Source] Re: [RealSTMFC] PRR G25, X40 and F37

Gatwood, Elden J SAD



Just to add to what Ben said, the X40 were part of the “lightweight” fad taking place at the time.


The thinking was that reduction of dead weight in a car, particularly in service like LCL, could be lowered, cost savings.


Unfortunately, with the failure of dedicated LCL, these cars were cascaded into other service, resulting in them being overloaded sometimes.


They did not hold up well in general service, and other less than robust car classes also suffered.


PRR’s answer much after the fact was to only build box cars with much-reinforced side sills, including sometimes door gussets, either on rebuilds or as new.


Elden Gatwood



From: <> On Behalf Of Benjamin Hom
Sent: Tuesday, April 20, 2021 8:57 AM
Subject: [Non-DoD Source] Re: [RealSTMFC] PRR G25, X40 and F37


Ron Merrick wrote:

"Hope somebody will humor me, but I'm interested in the X40 cars despite the fact that I'll never build a model of one, one reason being that I doubt that one of them ever visited my obscure secondary main line in Kansas.  I believe the X40c was the fire engine delivery car, which has been discussed here several times."


While the single Class X40C car was a 60 ft non-rack equipped automobile boxcar with end doors that could have been used for delivering fire engines, it wasn't necessarily dedicated in that service, so could be used for any other lading requiring an end door automobile boxcar.


Regarding the dedicated car for American LaFrance, you're probably thinking about the Class X30 boxcar.



"But I'd be curious as to what the others were intended for, other than pushing the envelope on freight car design.  I see by the site that they had a fairly long life,  but since only 110 were ever built, they may have been an evolutionary dead end."


They were used in automobile service, with a few equipped for LCL service  - a check of the notes section of the ORER would indicate which ones were equipped with racks for specific parts and other service.



Ben Hom

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