Tender

A tender or coal-car, is a special rail vehicle hauled by a steam engine containing the locomotive's fuel (wood, coal, or oil) and water. Steam locomotives consume large quantities of water compared to the quantity of fuel, so tenders are necessary to keep the locomotive running over long distances. A locomotive that pulls a tender is called a tender locomotive (or engine), which is commonly considered the standard steam locomotive.
Locomotives that do not have tenders and carry all their fuel and water on board the locomotive are called tank engines. 
Locomotives that do not have a separate tender and carry fuel supplies on articulated sections of themselves are called Garratts.
==Trivia==
rake tender is a heavy variant used primarily to provide greater braking efficiency.
A Vanderbilt tender is a tender designed by Cornelius Vanderbilt. The tender is mainly meant for hauling or carrying oil or extra water. (The inventor actually named the unique tender after himself.)
Tenders have also been used on Gas-Electric Turbine diesel locomotives, such as the GE GTEL diesel locomotive.
== Gallery:==
File:Vanderbuilt Tender.jpg|A Vanderbilt tender, which focuses on liquid carrying capacity.
File:Northern Alberta tender.jpg
File:E33448EF-D98B-4883-AC25-36D4517E6F23.jpeg
File:Southern Pacific Locomotive at Roseville California station.jpg
File:Southern Pacific No. 2252 In Roseville Ca. - panoramio (1).jpg
File:Southern Pacific 2353 (4282709837).jpg
File:B8869057-56A7-4DB6-A102-6BE129DD48B2.jpeg
File:Tender of the locomotive.JPG
File:Coal Tender - 10572149515.jpg
File:1630 tender.jpg
File:B0D33630-FEF9-43F3-8F6F-06DF37782119.jpeg
File:Wmsr 734 tender by engine97 d7jv6c8-fullview.jpg
Category:Locomotive Parts
Category:Steam Locomotive Principles
Category:Encyclopedic articles
Category:Rolling Stock