[RITSlist] Rock Island Vanderbilt Tender Question

[tbrug at aol.com]

 Carl & List:

While you're waiting for someone else with more knowledge to  respond, I'll offer what I can recall.

The loaf of bread tenders started out as Vanderbilt's.? The RI solved at least two problems in modifying them to triangular tanks: (1) they added water capacity, and (2) They lowered the center of gravity on the tenders making them more stable.? There may have been more reasons, but someone else will have to add them.

The first modified tanks were built on a "fabricated frame" that probably started out as the original Vanderbilt frame. The second versions were modified tanks constructed on "cast" tender frames; and the third and final version were "water bottom," where the tender's water tank sheets run straight down the sides into the under frame.? One can look at a picture of a RI locomotive with it's loaf of bread tender and identify the type of frame by looking at the side frame.? They each appear a bit differently.

The tender on the Overland RI Pacific is the fabricated frame, which I selected for Overland because I liked the appearance and also it matched the coal burning version of the 4-6-2 locomotive I wanted them to model. 

The doghouse additions came later as the tenders were reassigned for local freight locomotives.

Since several of these tenders have lasted from steam through the end of the Rock, you have to consider them quite successful in design, particularly for their stability. They stay on the tracks even when you run them into deep snow drifts at high speed.? Somebody had a link to the videos of one of these plows in action on one of the short lines.? That's one tough little plow.

Hope this helps.

????????????????????????????????????????????????????????????????????????????? Tom Brugman
 

 


 

-----Original Message-----
From: Carl Fankhauser <csfank at gbta.net>
To: RITS <ritslist at simpson.edu>
Sent: Sun, 16 Mar 2008 10:10 pm
Subject: [RITSlist] Rock Island Vanderbilt Tender Question
















I've seen pictures of the typical round water tank 
Vandy tenders on RI steamers and also the triangular tank 'loaf of bread' type 
which were later converted into the snowplows.? The question is, were 
the triangular tanks later added as a modification to the round tank style or 
were both issued as new erections with their assigned locos coming from the 
builder, such as Alco?








 



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