Norfolk Southern GP33ECO

The EMD GP33ECO is a 4-axle diesel-electric locomotive built by the Norfolk Southern Railway in its Juniata Locomotive Shop. The locomotive is a rebuild of the EMD GP50 designed to meet Tier 3 emissions standards. The first locomotive was completed in January 2015. The rebuild was funded in part by the federal Congestion Mitigation and Air Quality Improvement Program.[3]

EMD GP33ECO
EMD GP33ECO Norfolk Southern 4722 powers a freight train, with a RP-M4C at the lead
Type and origin
Power typeDiesel
BuilderNorfolk Southern Railway
Build date2014
RebuilderAltoona Works
Number rebuilt5
Specifications
Configuration:
​
 • AARB-B
 • UICBo′Bo′
Gauge4 ft 8+1⁄2 in (1,435 mm)
Prime mover12N-710G3B-T3
RPM range900-950
Engine typediesel
AspirationTurbocharged
Displacement8520 cu in
AlternatorAR15CA6-D14
Traction motors4 D87B
Cylinders12
Cylinder size710 cu in
Transmissionelectric
MU workingAAR
Loco brakepneumatic, dynamic
Performance figures
Power output3,000 horsepower (2,200 kW) (software limited)[1]
Tractive effort64,200 lbs
Career
Numbers4700-4724
Current ownerNorfolk Southern
[2]

References
  1. "Juniata Diesel Conversions GP50 to GP33ECO for Norfolk Southern". AltoonaWorks. Archived from the original on February 1, 2015. Retrieved February 1, 2015.
  2. Guss, Chris (May 8, 2014). "EXCLUSIVE: Norfolk Southern begins GP33ECO locomotive program". Trains. Retrieved January 12, 2015. (subscription required)
  3. "NS unveils first publicly funded GP33ECO locomotives". Trains. January 6, 2015. Retrieved January 12, 2015. (subscription required)

Further reading
  • Guss, Chris (March 2016). "Green is the new black". Trains. 76 (3).
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