Re: Six new locomotives for White Pass?

trainrider47 Wrote:
-------------------------------------------------------
> From the NRE website describing the requirements
> for the Australian units that the White Pass units
> are based on - The locomotives must be
> narrow-gauge (1,067 millimeter). They must have
> six axles, each able to carry 15.75 metric tons,
> with new NRE bogies. They must have 2,250 traction
> horsepower with a minimum radius curve of 80
> millimeters. They must weigh no more than 94.5
> metric tons with dimensions that do not exceed
> 3,900 millimeters in height, 2,850 millimeters in
> width and 19,018 in length.
>
> 2,250 tractive horsepower is a lot less than the
> 2,900 tractive horsepower figure Brandon is
> quoting. The curvature requirement is obviously a
> typo.
>
> Michael Allen

I got 2,900 from some rough math I did last year. I was looking at continuous amps rating of the NRE 764 motor and was able to translate that into continuous hp. I don't remember how I did the calculation, I could be wrong.

What I know is White Pass wants to haul 16 coaches up the grade at a reasonable speed. With that, In the Dec 2018 Railway Age article John Gray said they need at least 2,800 hp.



Edited 1 time(s). Last edit at 01/27/2020 10:08AM by BrandonGia.