GE Dash 8.5-40CW

Type and origin
Power type	Diesel-electric
Builder	Norfolk Southern
Model	Dash 8.5-40CW
Build date	2012-April 2016
Rebuilder	Norfolk Southern

Specifications
AAR wheel arr.	C-C
UIC class	Co′Co′
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm) standard gauge
Trucks	GE HiAd
Wheel diameter	40 in (1,016 mm)
Length	70 ft 8 in (21.54 m)
Width	10 ft 2 in (3.10 m)
Height	15 ft 4 in (4.67 m)
Fuel capacity	5,000 gallons
Lubricant cap	410 US gal (1,600 l; 340 imp gal)
Coolant cap	380 US gal (1,400 l; 320 imp gal)
Prime mover	GE 7FDL-16
Engine type	four stroke cycle V16 diesel engine
Aspiration	Turbocharged
Alternator	GE GMG197
Traction motors	GE GE752-AH DC traction motors
Cylinders	16
Train brakes	CCB 26

Performance figures
Maximum speed	70
Power output	4,000 hp (2,983 kW)

Career
Operators	Norfolk Southern
Locale	North America
Current owner	Norfolk Southern
Disposition	10 on active roster

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

The locomotive is designed to meet Tier 2 emissions standards. All of the Dash 8.5-40CW's excluding 8505 have been rebuilt with the Norfolk Southern-designed wide-nose RLS cab which meets current FRA crashworthiness standards. 8505 was rebuilt was 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.

As of April 2016, it appears the program has been canceled. Norfolk Southern experienced 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. As of August 3, 2016, 5 out of 10 completed were stored, but still on the active roster. Norfolk Southern will finish the units that have started rebuilding, but will start no more.

History

The units that have been rebuilt were all Norfolk Southern of EX-Conrail. They were built in the late 1980s and are getting old and 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 feel injection. The units are also getting new computer systems to improve efficiency.

On July 14, 2016 in Chattanooga, Tennessee, 8505 was wrecked and its fate is currently unknown.

Due to many problems with the locomotives, the program was canceled in 2016, and the Dash 8's will be phased out with the delivery of new ET44AC and ES44AC locomotives.

References

Toth, Chris (2015). "Norfolk Southern Diesel Locomotive Roster: GE/NS Dash 8.5-40CW (D8.5-40CW) No. 8501". Retrieved 2015-09-22.

Diesel locomotives built by GE Transportation / GE Rail (GE)

Industrial and switch engines	60-ton boxcab 100-ton boxcab 600-hp centercab 1000-hp centercab DEY-2 EN-6 25-ton 35-ton 43-ton 44-ton 45-ton 50-ton 60-ton 65-ton 70-ton 80-ton 95-ton 100-ton 110-ton 125-ton 126-ton 128-ton 1800-hp transfer 2000-hp transfer U5B U6B

Universal Series	UM6B U9B U10B U12B U13B UD18 U18B U23B U25B U28B U30B U33B U36B UM12C U12C U14C U15C U17C U18C U18C1 U20C U20C1 U23C U25C U26C U28C U30C U33C U36C U50C U50

Passenger locomotives	U28CG U30CG U34CH P30CH B32-8WH Genesis series (P40DC, P32AC-DM, P42DC)

Dash 7 Series	B23-7 BQ23-7 B30-7 B30-7A B36-7 C30-7 C30-7A C36-7

Dash 8 Series	B32-8 B39-8 B40-8 B40-8W C32-8 C39-8 C40-8 C40-8M C40-8W C40-8.5W C41-8W C44-8W

Dash 9 Series	C40-9 C40-9W C44-9W BB40-9W C-38AChe

AC series	AC4400CW AC6000CW C30ACi C44ACi

Evolution Series	ES40ACi ES40DC ES44DC ES44DCi ES44AC ES44C4 ET44AC ES59ACi

PowerHaul Series	PH37ACmi PH37ACi PH37ACmai

Indonesian series	U18A1A C18MMi C20EMP CM20EMP

(see also: List of GE locomotives)

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