Re: Off topic question


Jack Mullen
 

On Mon, May 20, 2019 at 07:06 AM, Clark Propst wrote:
One time I've always wondered about is why a 50' car with only a 6' door?
Because C&NW figured that anything that could be loaded thru a 6' door into a 40' car would fit thru the same size door in a 50' car. That's a smart*** way of saying that door size is driven by  nature of the freight, and how it's loaded.

These cars were intended for merchandise, not lumber, machinery, autos or other large stuff. The 50' length provided more volume for relatively low-density package freight. In 1940, manually loading using hand trucks would be the norm. So a six foot door would suffice. A larger door opening would impose some additional structural cost. 
Post-WW2, palletization and forklifts changed the rules of the game, hence later cars had bigger doors,  and these ones got the homebrew door mod.

Jack Mullen

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