Jump to content

GE Dash 8.5-40CW

From Wikipedia, the free encyclopedia
GE Dash 8.5-40CW
NS Dash 8.5 #8500 at Salisbury.
Type and origin
Power typeDiesel-electric
BuilderGE Transportation Systems/Norfolk Southern
ModelDash 8.5-40CW
Build date2012-April 2016
RebuilderNorfolk Southern
Specifications
Configuration:
 • AARC-C
 • UICCo′Co′
Gauge4 ft 8+12 in (1,435 mm) standard gauge
TrucksGE HiAd
Wheel diameter40 in (1,016 mm)
Length70 ft 8 in (21.54 m)
Width10 ft 2 in (3.10 m)
Height15 ft 4 in (4.67 m)
Fuel capacity5,000 gallons
Lubricant cap.410 US gal (1,600 L; 340 imp gal)
Coolant cap.380 US gal (1,400 L; 320 imp gal)
Prime moverGE 7FDL-16
Engine typefour stroke cycle V16 diesel engine
AspirationTurbocharged
AlternatorGE GMG197
Traction motorsGE GE752-AH DC traction motors
Cylinders16
Train brakesCCB 26
Performance figures
Maximum speed70
Power output4,000 hp (2,983 kW)
Career
OperatorsNorfolk Southern
LocaleNorth America
Current ownerNorfolk Southern
DispositionAll retired, to be scrapped

The GE Dash 8.5-40CW was a 6-axle a 4,000 hp (2,800 kW) diesel-electric locomotive originally built by GE Transportation Systems, rebuilt by Norfolk Southern at its shops in Roanoke, VA. The first locomotive started rebuild 2012, with eleven more being rebuilt until 2016.

The locomotive is designed to meet Tier 2 emissions standards. All of the Dash 8.5-40CW's excluding 8500 and 8505 have been rebuilt with the Norfolk Southern-designed wide-nose RLS cab which meets current FRA crashworthiness standards. 8500 was rebuilt with an SD60E style Norfolk Southern-designed Crescent cab while 8505 was rebuilt with an ES44AC style GE cab. They have been equipped with the Traction and Engine Control Unit (TECU) from TMV Control Systems, upgraded from Manual Fuel Injection (MFI), to Electronic Fuel Injection (EFI), and equipped with NS-designed split cooling system. The rebuild also includes the installation of locomotive speed limiter (LSL), and cab signals. The traction motors were upgraded from GE752-AG to GE752-AH. They were also equipped with CCB 26 electronic air braking system, and an electric parking brake. PTC has also been installed.

In April 2016, the program was canceled, due to Norfolk Southern experiencing many problems with the first of the locomotives. As a result, all 9 of the operational locomotives were added to the active roster in "as is" condition for testing. By August 2016, 5 out of 10 completed were stored, but still on the active roster. Norfolk Southern later decided finish the units that have started rebuilding, with a total of 12 units being built. By April 2020, the entire fleet was stored indefinitely.

History

[edit]

The units that have been rebuilt were all Norfolk Southern GE Dash 8-40C's with some being ex-Conrail. They were built in the late 1980s and were getting old and some had deteriorating cabs; one of the primary reasons for the rebuilds. The rebuilds also include emissions upgrades with an engine rebuild and upgrade with new systems, such as electronic fuel injection. The units are also getting new computer systems to improve efficiency.

On July 14, 2016, NS 8505 was wrecked in Chattanooga, Tennessee and was later scrapped.

Due to many problems with the locomotives, the program was discontinued in 2016, and the remaining Dash 8's were phased out with the delivery of new ET44AC and ES44AC locomotives in mid-2016; the last remaining Dash 8-40C's on the roster were retired in March 2017. The last locomotive to be rebuilt as part of the program was unit 8513, which was completed in June 2018.

In April 2020, Norfolk Southern retired all Dash 8.5-40CWs. All locomotives stored pending disposition, 8503, 8506-8507, 8513 presumed scrapped. [1]

References

[edit]
  • Toth, Chris (2015). "Norfolk Southern Diesel Locomotive Roster: GE/NS Dash 8.5-40CW (D8.5-40CW) No. 8501". Archived from the original on 2015-09-23. Retrieved 2015-09-22.