NRE 3GS21B
Performance figures | |
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Power output | 2,100 hp (1,570 kW) |
Career | |
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Operators | See list |
The NRE 3GS21B is a low-emissions diesel genset locomotive built by National Railway Equipment (NRE). Instead of a single prime mover, the NRE genset locomotive is powered by three separate 700 horsepower (522 kW) Cummins QSK19C engines providing a total power output of 2,100 horsepower (1,570 kW). Each engine could be individually started or shut off depending on load reducing overall diesel emissions and improving 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 NRE's Mount Vernon shops in Southern Illinois.[2] In addition, three road slug models have also been produced.
Flexibility
Because the engines are modular, flexibility is obtained:
- If one engine fails, the others can continue at reduced power.
- If a lower axle load is needed, one engine can be left off.
- When reduced power is needed, one or more of the engines can be turned off, saving fuel and wear and tear.
- The QSK19C engine is common to the four variants of the NRE 3GS21C locomotive.
- The QSK19C engine is also widely used for non-railway applications, and spare parts are readily available.[3]
Original buyers
Railroad | Quantity | Road numbers | Notes |
---|---|---|---|
BNSF Railway | 72 | 1220-1294 | 1293-1294 equipped with dynamic brakes, classified as 3GS21B-DE |
California Northern Railroad | 5 | 501-505 | |
Canadian Pacific | 2 | 2100-2101 | Both units equipped with dynamic brakes, classified as 3GS21B-DE, 2100 retired 5/13, 2101 retired 6/13 (both returned to NRE). |
CSX Transportation | 16 | 1300-1316 | |
Massachusetts Bay Transportation Authority | 2 | 3248-3249 | Both units equipped with dynamic brakes, classified as 3GS21B-DE |
Metro Stevedore[4] | 1 | 805 | Equipped with dynamic brakes, classified as 3GS21B-DE |
Neptune Bulk Terminals[5] | 3 | 805-805A, 808-808A, 809-809A | 805A, 808A and 809A are the only road slug model built to date. |
Norfolk Southern | 2 | 300-301 | |
Nova Chemicals | 2 | 9120-9121 | |
National Railway Equipment | 7 | 2008-2009, 2011, 2013–2015, & 2020 | Demonstration Units |
Pacific Harbor Line | 4 | 30-31 & 33-34 | |
Tacoma Rail | 1 | 2100[6] | |
Union Pacific | 59 | Y2701-Y2760 | |
United States Army | 7 | 6500-6506 | |
San Diego and Imperial Valley Railroad | 2 | SDIY 701-702 | |
Total | 182[7] |
- A brand new 3GS21B locomotive painted for the BNSF Railway.
-
- Two brand new U.S. Army 3GS21B locomotives working at Fort Lewis, Washington.
- Brand new MBTA 3GS21B-DE at South Station.
- MBTA 3GS21B-DE on the Grand Junction Railroad.
See also
References
- ^ "N-Viromotive new locomotive". www.nationalrailway.com. Archived from the original on 2007-09-01.
- ^ Train Web: Gensets Gen-set switchers by National Railway Equipment.
- ^ Cummins Marine (August 2002). "Bulletin 4000084: QSK19-M" (PDF). Archived from the original (PDF) on April 12, 2013.
- ^ 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 | |
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![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- National Railway Equipment Archived 2007-09-01 at the Wayback Machine – Official N-ViroMotive Product Page
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