Re: "Longitudinal" hopper
Russ Strodtz <sheridan@...>
Tim,
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We are getting way out of scope here. Roofed coal gons, not hoppers belonged to Big Stone Power. Those covers have been removed. Motivation was different. The Montana Sub-Bituminous is very fine and they were trying to prevent losing coal to the wind going across the prairie. The arms on the roofs were designed to work with a modified dumper. They limited the roof's travel. Cars are still in service today without the roofs. Russ
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From: timboconnor@... To: STMFC@... Sent: Wednesday, 18 April, 2007 13:59 Subject: Re: [STMFC] "Longitudinal" hopper Could these be the prototype in question? # Ga-168 Hopper Cars Series 76700-76999 built 1969 longitudinal hoppers # Ga-170 Hopper Cars Series 64025-64038 built 1969 copper concentrate service Milwaukee also tried the wind resistance idea -- they built hoppers designed with a top that was mechanically closed as the train slowly rolled. The cars had these big 'arms' sticking up IIRC. Tim -------------- Original message ---------------------- From: "Russ Strodtz" <sheridan@...> > Tim, > > Yes it does but the AT&SF seemed to be full of > these oddball ideas. If you take a three bay > GA-122, remove the hoppers and replace with > lengthwise doors and build up or borrow flat car > ends, that model on e-bay is what you are going > to end up with. > > Somewhere I have photos of their attempt to reduce > the wind resistance of modern coal hoppers by > putting bonnets over the open end areas. The test > process even included a locomotive with a boom > sticking out about 30' forwards to put wind > measurement instruments. > > The purpose built 1963 B-L-H cars are odd enough > in themselves. I don't know what their center of > gravity was but it must have been rather high. > > Russ Strodtz > ----- Original Message ----- > From: timboconnor@... > To: STMFC@... > Sent: Wednesday, 18 April, 2007 12:36 > Subject: Re: [STMFC] "Longitudinal" hopper > > > > Russ I think you are right that the prototype car was built for > copper concentrates. SP had some really weird looking cars > built around the same time period for that commodity. That > model of a hopper car on a flat car body just looks silly IMO! > > Tim O'Connor Yahoo! Groups Links
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