NRE 3GS21B
| NRE 3GS21B | |||||||||||||
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 A new NRE 3GS21B locomotive in the Union Pacific scheme. | |||||||||||||
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The NRE 3GS21B is a low-emissions diesel switcher locomotive built by National Railway Equipment. It is powered by three Cummins QSK19C I6 engines with each one developing 700 horsepower (522 kW) and creating a total power output of 2,100 horsepower (1,570 kW). Having multiple engines instead of a single prime mover, a design referred to as a "Genset," reduces overall diesel emissions and improves fuel efficiency.[1] More than 150 of the 3GS21B Genset locomotives have been produced to date, with the majority of these units being manufactured at NREC's Mount Vernon shops in Southern Illinois.[2] In addition, three road slug models have also been produced.
Original buyers
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| BNSF Railway | |||
| California Northern Railroad | |||
| Canadian Pacific | 2100 retired 5/13, 2101 retired 6/13 (both returned to NRE). | ||
| CSX Transportation | |||
| Massachusetts Bay Transportation Authority | |||
| Metro Stevedore[3] | |||
| Neptune Bulk Terminals[4] | 805A, 808A and 809A are the only road slug model built to date. | ||
| Norfolk Southern | |||
| Nova Chemicals | |||
| National Railway Equipment | |||
| Pacific Harbor Line | |||
| Tacoma Rail | |||
| Union Pacific | |||
| United States Army | |||
| San Diego and Imperial Valley Railroad | |||
| Total | 182[6] |
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A brand new 3GS21B locomotive painted for the BNSF Railway. -
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Two brand new U.S. Army 3GS21B locomotives working at Fort Lewis, Washington. -
Brand new MBTA 3GS21B at South Station. -
MBTA 3GS21B on the Grand Junction Railroad.
References
- ^ http://www.nationalrailway.com/nviro.asp
- ^ Train Web: Gensets Gen-set switchers by National Railway Equipment.
- ^ Metro Ports
- ^ Neptune Terminals
- ^ Tacoma Rail Locomotives Tacoma Rail Acquires Eco-friendly Locomotives.
- ^ Train Web: Gensets Roster information on NREC 3GS21B engines.
External links
| External images | |
|---|---|
 RailPictures.Net – NRE 3GS21B photographs from RailPictures.Net. | |
| Railroad Picture Archives – Photographs of the NRE 3GS21B at Railroad Picture Archives. |
- National Railway Equipment – Official N-ViroMotive Product Page
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