GE Dash 8.5-40CW

GE Dash 8.5-40CW
NS Dash 8.5 #8500 at Salisbury.
Type and origin Power type Diesel-electric Builder GE Transportation Systems/Norfolk Southern Model Dash 8.5-40CW Build date 2012-April 2016 Rebuilder Norfolk Southern
Specifications Configuration: ​  • AAR C-C  • UIC 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 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.

As of April 2016, 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 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 in Chattanooga, Tennessee, 8505 was wrecked 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, last remaining Dash 8-40C's on the roster were retired in March of 2017.

References