Re:boiler pressure

[Gary Broeder]

>
>As a newbie live steamer, neither of them translate to anything meaningful
>to me since I can't see how 200lbs of steam pressure against a cylinder face
>of x inches in diameter can move a multi-ton  Loco and it's consist, but it
>does somehow. 



Remember that is 200 PSI. There is 200 pounds pushing on every square inch of surface 
on that piston!

GaryB ( I remember from the 60s that a kilo was always 2.2046 Lbs.!)