Mason Bogies Tender Tanks

[Tim B]

As far as I understand it, all of the "larger" DI-1 class Mason Bogies were built with the larger tender tanks like the Breckenridge below.



Later they had the brake air tank added to the rear of the tank on an extended deck as seen below on C&S #1



As far as I know ALL the large DI-1 class Mason's had their air tanks placed on this "extended" deck WITH the larger tender. So my question is how accurate is the drawing below that shows the air tank on the deck behind the smaller tender tank ???



I know the above drawing shows the smaller tender tank that were common on the "smaller" DH-1 Class Masons but did any of the "larger" Masons ever have this smaller tender tank like shown in the drawing above ??

Thanks

[Tim B]

Sorry Guys. I should have made the one picture smaller so you could see the air tank behind the tender.

Cheers

[Robert McFarland]

I think there was some discussion about differences in Mason Bogie equipment in Mal Ferrell's South Park Line  

[Robert McFarland]

Remember Mason was constructing other engines at the same time as the DSP&P ones- there would have been slight changes during the production run.

[Rick Steele]

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

[Chris Walker]

How many gallons Rick? have you got one extra digit?  Our NZR 65ton tankcars only held 13700 gals.
And Rick is right, it is only called a Tank or cistern on a Tank loco since there is no separate trailing tender car, but the frame is extended, the tank isn't shortened.

Break out and post your Mason Bogie photos, Robert.

[Rick Steele]

You are right Chris, an extra zero on each. Sorry.

Edited, does it look better now?

Rick

[Robert McFarland]

What Mason Bogie photos? BTW there are 2-3 good ones on eBay right now.

[ComoDepot]

[Jim Courtney]

What a beautiful photograph!  Source??

[ComoDepot]

Ebay

We are trying to trace who bought it, hopefully somebody we know.

[Robert McFarland]

Is there a station or siding named Sullivans?

[Chris Walker]

Sullivan was a fireman for Sam Speas at one time.

The notation on the picture is No.600 Noble Six Hundred Sullivans South Park Democrats

The scenery to me looks very much like that of just downstream of Dome Rock, the jumble of large cut and tenoned timbers suggest the unload of a Water Tank kitset, but what a wonderful view.

Edit: not saying it is but very reminiscent

[Robert McFarland]

Check out DPL photo  C-264 by Joseph Collier