I believe that 8000 was designed and built by the cpr at the Angus shops in Montreal Henry Blaine Bowen, cpr's head of motive power, as I understand, believed he could with time and money resolve the technical issues associated with such a complex design, but with war on the horizon the cpr decided that it was unwilling to invest the needed resources to continue with locomotives development. Donald Blain and associate did an excellent book on the 8000 witch I was able to find on line
I have some incredible photos of the 8000 my grandfather was an intricate part of the design! He spent years working for superheater boiler Company and spent time in Calgary Canada! I do need to donate some things to a train museum photos etc.
The original comment contains errors. See below sentence by sentence.
This multipressure locomotive was designed in Montreal at Montreal Locomotive works in 1928. *correct *
These locomotives were assigned road numbers 5900 through 5919. These were part of the Selkirks, a name chosen for then range of Rockies they travelled and crossed. *No, this not a Selkirk locomotive. It only has the same White Notation as the Selkirks: 2-10-4. It is correct, that the first series of the Selkirks, the T1a class had the numbers 5900 - 5919, but the locomotive in the picutre has the number 8000 like shown in the title of the pic.*
Exhaust steam was mixed with 250 psi pressure steam from the main boiler to feed two outside cylinders. *imprecise. It should say: "A closed ultra high pressure circuit filled with deitilled water generated steam of 1350 psi pressure. This steam was used to evaporate normal water in a heat exchanger to steam of 850 psi, which was used to feed the central cylinder. Exhaust steam (of the center cylinder) was mixed with 250 psi pressure steam from the (low pressure boiler) to feed two outside cylinders.*
High maintenance costs offset benefits and was scrapped in late 1930's. *maybe correct*
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