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 genset locomotive built by National Railway Equipment (NRE). 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). Instead of a single prime mover, the NRE genset locomotive has three engines that each can be turned off or on as power is needed 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 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 |
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BNSF Railway | 1293-1294 equipped with dynamic brakes, classified as 3GS21B-DE | ||
California Northern Railroad | |||
Canadian Pacific | Both units equipped with dynamic brakes, classified as 3GS21B-DE, 2100 retired 5/13, 2101 retired 6/13 (both returned to NRE). | ||
CSX Transportation | |||
Massachusetts Bay Transportation Authority | Both units equipped with dynamic brakes, classified as 3GS21B-DE | ||
[4] | Equipped with dynamic brakes, classified as 3GS21B-DE | ||
[5] | 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[7] |
A brand new 3GS21B locomotive painted for the BNSF Railway.
An NRE 3GS21B leads a Union Pacific train along street running trackage at Anaheim, California.
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[]
- ^ http://www.nationalrailway.com/nviro.asp[dead link]
- ^ 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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Wikimedia Commons has media related to NRE 3GS21B locomotives. |
- National Railway Equipment – Official N-ViroMotive Product Page
- B-B locomotives
- NRE locomotives
- Railway locomotives introduced in 2006
- Diesel-electric locomotives of the United States
- EPA Tier 2-compliant locomotives of the United States
- Rebuilt locomotives
- Standard gauge locomotives of the United States