Iskra
Established Member
Random question; why are the tops of these wagons slanted downwards? What purpose does this achieve?
Thanks.
Thanks.
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PCA Wagons Query
- Thread starter Iskra
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R
RailUK Forums
A bit of photo searching shows a lot as being flat- did they all start off as simple cylinders, with some/all having a wedge cut out and welded up, to help with powder flow when emptying? That the top is then v shaped is just a side effect, it's the bottom that's more important?
DarloRich
Veteran Member
Is there not a mix of styles?
Chris Butler
Member
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- 23 May 2010
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This is a guess.
I think the easiest and therefore cheapest way to make the floors slope down to the centre discharge point is to take two cylinders (which is an inherently strong shape), tilt them down and join them. The result is the top slopes, but simply because the whole cylinder tilts.
The alternative is to make a cylinder whose diameter increases as you move from the ends to the centre (another way of saying that is make a section from a cone) which is inherently weaker and more difficult and more costly.
Like I said, only a guess.
I think the easiest and therefore cheapest way to make the floors slope down to the centre discharge point is to take two cylinders (which is an inherently strong shape), tilt them down and join them. The result is the top slopes, but simply because the whole cylinder tilts.
The alternative is to make a cylinder whose diameter increases as you move from the ends to the centre (another way of saying that is make a section from a cone) which is inherently weaker and more difficult and more costly.
Like I said, only a guess.
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