Re: Mason Bogies Tender Tanks

Posted by Rick Steele on Nov 28, 2017; 8:37pm
URL: http://c-sng-discussion-forum.254.s1.nabble.com/Mason-Bogies-Tender-Tanks-tp10176p10230.html

If I can interject here, the DSP&P 2-6-6-T Masons were of three different types there were the small ones, the earlier ones with the lower numbers the 3 -8, 10-14, the larger ones with a higher tractive effort were 9, 15,16 20-24. BUT, according to Mason's own records, the 24 was a one-of. The 24 had a slightly larger boiler and more flues than its predecessors. This means that it could produce more steam and was probably slightly more powerful than its predecessors. This is the locomotive that became No. 57 and then C&S 1. I would suggest that, in looking at the spec's the lighter Bogies had a water capacity or 4,385 gallons and the larger bogies capacity of 4,500 gallons that the individual classes or individual locomotives should be looked at rather than making a blanket statement for the entire line of Mason Built locomotives.

The coal capacity for both classes was three tons. Those are US 2,000 lb tons, Chris...

If you read the valuation field notes carefully. you will find that some of the lighter bogie boilers ended up in pump houses along the C&S in various locations.

With three different owners (independent, UP and the Court) it would be foolish to say "Look, they all had an air tank right there". Some may have, some may not.

My opinion is that they all eventually had air tanks and the rear of the tender deck (If you can call the solid frame of a Bogie a "tender") was the easiest place to put them. With the advent of Air Brakes, the air reservoir had to be stored somewhere. The big question is whether the frame was lengthened or the water jacket was shortened. Remember that arch rival Rio Grande mounted a lot of theirs between the back board for the coal space and the water hatch. If you have a long way to go between water stops, that makes the best sense.

A quick glance would tell me that the water jacket was shortened. But I am up for anything.

Just to throw some sand into the agreement gears around here...

Rick