> I wouldn't say that; how much do they know about stainless steel
> drivers - and how much better off would we be if they spent more time
> learning?
> Bob Nicholson
Bob....Only my high degree of professionalism prevents me from making a
response to your query above. Not to mention a probable "ding" from
our esteemed Moderator for saying something even remotely related to
politics or religion. Suffice to say, that I am still in learning mode
trying to figure out why a large-wheeled loco (steam) has more drawbar
pull than a small-wheeled loco (dismal) when they both have the same
weight and the same number of powered wheels. One fellow suggested
(offlist) that the larger diameter wheel has more surface area contact
with the rail head which then results in more drawbar pull.
Interesting theory, but I cannot say if it is really the causation
factor in this instance. Any mechanical ungineers out there? Or
metallurgists? Or maybe someone willing to take an unscientific
guess? Nothing like a new challenge to end the day. Cheers...Ed L.
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