Re: Garratt Design - and the Americanization thereof ...

Russo Loco Wrote:
=======================================================
> My sediments exactly, Michael -
>
> Actually, although the K-37s have a slightly
> higher TE than the K-36s, they have much
> older and less efficient boilers (i.e. lower
> horsepower), so they can pull a bit more, but
> at a somewhat lower speed lest they run out of
> steam ...
>
> Where is Will Woodard now that we really need
> him??

Having a bigger grate area as well as a higher crown sheet made k37 boilers steam better than the 480's. The higher crown sheet makes for a greater gas area above the fire which consumes the coal gasses better-in much the same way as a combustion chamber does.