| 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 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 at South Station. -
MBTA 3GS21B 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 | |
|---|---|
RailPictures.Net – NRE 3GS21B photographs from RailPictures.Net. | |
|
Railroad Picture Archives – Photographs of the NRE 3GS21B at Railroad Picture Archives. |
- National Railway Equipment Archived 2007-09-01 at the Wayback Machine – Official N-ViroMotive Product Page