Re: Tank Car United States Army USAX 16503

Mont Switzer

Handling chlorine cylinders (called "tons") is nasty business.  One reason for so many of these miniature pressure vessels is should there be a leak (chlorine gas) you are only dealing with 2000 lbs of product. 


Once unloaded from the car, the "tons" are easy to distribute to multiple locations where the product is used.  A lot of them go into water treatment.


Mont Switzer     

From: [] on behalf of Mont Switzer [MSwitzer@...]
Sent: Tuesday, June 09, 2020 8:49 AM
Subject: Re: [RealSTMFC] Tank Car United States Army USAX 16503



Unless the HM regulations were different back then the placards have to remain on the car whether loaded or empty to cover the residue.  However, there may have been a slightly different placard for the residue back then.


Mont Switzer

From: [] on behalf of John Barry [northbaylines@...]
Sent: Monday, June 08, 2020 10:11 PM
Subject: Re: [RealSTMFC] Tank Car United States Army USAX 16503

As Ian and Tony have stated, most likely Chlorine which was required to be placarded as a poison gas.  Your photo captures said placard so you can infer that the car was loaded when you shot it.

John Barry
ATSF North Bay Lines 
Golden Gates & Fast Freights 
Lovettsville, VA


PO Box 44736 
Washington, DC 20026-4736

On Monday, June 8, 2020, 09:02:29 PM EDT, Ian Cranstone <lamontc@...> wrote:

Cars of this type usually were in chlorine service, each canister held 1 ton.

Ian Cranstone
Osgoode, Ontario, Canada


On 2020-06-08 20:37, Richard Wilkens wrote:

U.S. Army Tank Car USAX 16503 at Taylor Yard in Los Angeles on May 24, 1958. Wonder what nasty stuff was in those tanks?

Richard Wilkens

Join to automatically receive all group messages.