Caption: Question of the Day:
That management trainee special: CP 8246 west with a string of sixty ( or so ) of ancient fifty foot reefers & boxes, primarily CP forest product and Soo Line reefers...all empties.
The Soo Line reefers: SOO #18992 (SOO 16937 and 16889 also) that auxiliary door, purpose ?
At Cherrywood, March 13, 2013 image by S. Danko.
The 8246 west:
8246 west
sdfourty.
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An Official Railway Equipment Register of mine lists such cars as: Type E Freightmaster Cushioning, 50 ft., 10ft sliding plug door with grain access doors, whatever that means.
This isn’t a reefer, or even insulated. It’s a 50′ standard boxcar with plug doors. Apart from that, there’s nothing particularly special about this car.
This car doesn’t have any special auxiliary features, and there’s nothing unusual about the plug door, so I’m not sure what you were seeing as the “auxiliary door” on this particular car.
Note that some earlier SOO 50′ boxcars did have grain loading hatches on their doors (http://canadianfreightcargallery.ca/cgi-bin/image.pl?i=soo16644&o=soo) but that’s not the case here.