Norfolk Southern GP33ECO

EMD GP33ECO
EMD GP33ECO Norfolk Southern 4722 powers a freight train, with a RP-M4C at the lead. This unit was later renumbered to 6722.
Type and origin
Power typeDiesel
BuilderNorfolk Southern Railway
Build date2014
RebuilderAltoona Works
Number rebuilt30
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
Numbers6700-6729 (formerly 4700-4729)
Current ownerNorfolk Southern
DispositionRenumbered to 6700 series locomotives to clear the roster for new rebuilt AC44C6Ms
[2]

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]

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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