Tender Booster

[nw-mailing-list at nwhs.org]

Short explanation, I am sure that Ed can provide a better one. Using 
spent steam from the locomotive ( like in a mallet), you add one or two 
trucks with pistons to power the wheels on the tender.  This in theory 
adds more tractive effort,  it does when the tender is loaded.  When the 
tender starts to empty, it is not an advantage, see the triplex locomotives.

Regards,
Kurt S. Kramke MMR

nw-mailing-list at nwhs.org wrote:


> While looking through the collection of photos in the Virginia Tech 

> collection, I ran across two photos of a N&W Y-3 that had a 

> significant amount of piping between the locomotive and tender.  One 

> photo has the notation "Application of Bethlehem Tender Booster 

> 5-19-27."  I have never heard of a tender booster and wonder if 

> someone can provide an explanation.

>  

> The photos are found at 

> http://spec.lib.vt.edu/imagebase/norfolksouthern/full/ns966.jpeg

> and ....ns965.

>  

> Skip Chamberlayne

>

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