Re: Kansas Central Grade

bcp Wrote:
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> evankamp Wrote:
> --------------------------------------------------
> -----
> > Not sure about the grade but I do know for sure
> > that Klondike Mines Railway #1 up in Dawson
> City
> > is old #7 Sidney Dillion.
>
> WP&Y had two from KC.
> [wpyphotos.com]
>
> [wpyphotos.com]

Interesting. In the links above, tractive effort appears to be figured from 125 pounds using .8 as a coefficient (Canada using commonwealth norms) and with 42 inch driving wheels. I do not call these figures wrong but rather point them out as indicative of changes made to the locomotives over the years. As originally built by Brooks the 14x18 moguls (and most other Brooks models of that era) usually permitted up to 135 pounds pressure as a hard limit, with the first valve opening sooner but being variable. Normal Brooks practice for the late 1870's and early 80's was to equip an engine with two safeties, the first of which of which was adjustable from the cab if the engineer wanted to "hold it down" for more power for whatever reason. Such adjustable safety valves later fell out of use and may have been outlawed. Drivers would've been 41 inch as new, different due to being later equipped with thicker tires.

In addition to the Moguls, Kansas Central also had some of the Brooks 12x18 4-4-0 types. I've been looking for detail specifications for that model because a local narrow gauge railroad also ran them. I have specifications for the 12x16 and the 14x18 4-4-0's, but not for the 12x18.



Edited 1 time(s). Last edit at 02/18/2020 05:29AM by James.