Re: Dry Flow Tank Cars ?

Douglas Harding

Thanks to Garth, I have the proper ARA designations, so I check my Jan 1941 ORER. No listing for the MSTL car, as I suspected. I doubt the contract was renewed after the original 10 month commitment. Among the information I received from Gene Green about the MSTL car, was a mechanical record for GATX 34000, dated 1-27-37. So this may have been the actual car leased to the MSTL. It indicates the car was built 2-17 by Warren, classed as LO and had a capacity of 10140 gallons. And was weighed on 10-36 at 46800.


In the 1941 ORER I found the following listed for General American in the tank car section, not under covered hoppers, with no indication of how many cars in each class.

LT 33000-33019

LT 33020

LT 33021-33030

LO 33031-33049

ARA EXP 33050

LO 33051-33054

LO 34000-34499


In the NMRA issued 1943 ORER was the number of cars in each class.

LT 33000-33019, six cars listed

LT 33020, one car

LT 33021-33030, six cars

LO 33031-33049, eighteen cars

ARA EXP 33050 reclassed as TL, one car

LO 33051-33053, three cars

LO 33054 reclassed as TM, one car

LO 34000-34099, two cars (note number series changed)


From the number series it would appear that General American anticipated building more cars than they actually did.


Doug  Harding


From: STMFC@... [mailto:STMFC@...]
Sent: Monday, January 29, 2018 5:25 AM
To: STMFC@...
Subject: Re: [STMFC] Dry Flow Tank Cars ?



Jim and Friends,

This type of car was classed as "LT" or "LTA". LT is defined in my 1958 ORER as "A permanently enclosed car having a cylindrical body for handling certain dry powdered or granular commodities . . . . Inside of body provided with mechanical means to expedite unloading. LTA uses the same definition, but lacks the unloading mechanism.

GATX (LT) 33000-33053 are listed in my ORER, but the "number of cars" column is empty, suggesting these had recently been retired or altered to some other classification. In addition, GATX (LTA) series 34000-34099 is also empty. One other GATX LTA series with mixed numbers in the 31XXX and 32XXX ranges shows eight cars in service.

GATX series 33000 is listed with outside length of 40'. GATX 34000 had an outside length of 31' 10". The mixed series had a length of 38' 2". No other dimensions are listed. From the photo of 33000, it appears that an Athearn 40' single-dome tank car might make a good start for a kitbash.

I also found Barret Division of Allied Chemical with 96 LTA cars listed as BMX 800-899 with an outside length of 36'; and four BMX 827, 838, 845 and 896 listed as exceptions with a different capacity.

Chicago Freight Car & Parts Company operated four LT cars under the CFRX reporting marks.

United States Railway Equipment Co. operated two LT cars as USEX 101-102.

A builder's photo of American Cyanamid Co.s CYX 102 is found in Gregg's TRAIN SHED CYCLOPEDIA No. 38. No cars of this type are among the CYX listings in 1958.

Yours Aye,

Garth Groff

On 1/28/18 11:29 PM, jcdworkingonthenp@... [STMFC] wrote:


  Sorry if this has been discussed here prior. I could not find anything in posts. 

While researching, this came up..from page 605 of a 1932 Railway Age is an article on General American Dry-Flo tank cars. Wondering if anyone has a sense of how many of these cars were built. Covered hoppers are still in the future a bit. 

   In the 50s, were these still running? 


 Has anyone ever produced a model (HO) of these? 


                             Thank you in advance.            Jim Dick  - St. Paul                                                                    



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