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The GE PowerHaul is a class of mainline diesel-electric locomotives designed by General Electric. Thirty locomotives were ordered by Freightliner in 2007; the first locomotive was completed in July 2009 at GE's Erie, Pennsylvania, plant.
The Turkish state owned rolling stock manufacturer Tülomsaş has a manufacturing agreement with GE to produce PowerHaul locomotives for European, African and Middle-Eastern markets. The Tülomsaş plant produced its first PowerHaul locomotive in February 2011. In November 2011 Australian engineering firm UGL Rail announced it was to develop a narrow gauge version of the class in association with GE.
Three main subclasses exist: PH37ACmi for UK railways, PH37ACi a version for mainland Europe and elsewhere built to UIC 505-1 Loading gauge, and PH37ACmai a version for track gauge lines.
Versions of the locomotive include the Class 70 used by Freightliner (UK), the DE36000 of the Turkish State Railways and the Korail Class 7600 (South Korea).
To fit within European and UK mass and loading gauge restrictions GE used a relatively high revving engine (1500rpm), giving a 20% increase in power-weight ratio. The engine uses the same design of transmission system as used in GE's North American AC drive locomotives: an AC alternator, with AC output rectified to an intermediate DC line, with separate inverters and inverter control for each traction motor, auxiliary power is also supplied by the DC link, using electronic inverter based load control. The PM37ACmi design uses a General Electric GTA series alternator, and 5GEB30 axle hung traction motors.
The cab includes heating, air conditioning, and acoustic insulation; the driving controls are 'dial-less' - information is displayed using electronic panel displays. The cab design includes consideration for GSM-R and European Rail Traffic Management System. One innovative feature of the design was the use of electrical power generated when using dynamic braking to supply auxiliary power - resulting in increase in overall efficiency.
Freightliner placed an order for 30 units (originally designated JS37ACi) in November 2007.Sources:
The first two locomotives manufactured were for Freightliner in the United Kingdom, construction began in May 2009 in Erie, with much of the UK compatibility testing taking place in the US before shipping to the UK. Two locomotives were delivered to the UK in October 2009, and received permission for service use by December 2009.
In December 2008 GE Transportation reached a manufacturing agreement with Tülomsas for the production of future PowerHaul locomotives for Eurasian, and African markets; the initial contract was reported to be for production of 50 units, 30 for GE and 20 for TCDD. Sources: In February 2011 Tülomsas completed the assembly of its first PowerHaul from a kit manufactured at GE's Erie plant; the locomotive, built to a UK loading gauge was shipped to the United Kingdom in October 2012.
In April 2012 GE announced that it was to use a PowerHaul locomotive to test its "Tempo" European Rail Traffic Management System system (Level 1 & 2). The locomotive is to be a Tülomsas built unit operated by an unnamed open access operator in Belgium, Netherlands, France, Germany and Switzerland, with operations starting 2013. In September 2012 GE announced that freight operator Heavy Haul Power International (HHPI) would be the recipient of two to six locomotives, which would be used to obtain homologation certification.
General Electric claims that the engine is more fuel efficient than contemporary competitors,Compared to Caterpillar Inc C175, MTU 4000 and EMD 710 series engines consuming 192g per kilowatt hour at full power output. EU IIIb emission standards are said to be achievable using exhaust gas recirculation and exhaust gas after-treatment by diesel oxidation catalyst.
Unlike PH37ACmi the locomotives are expected to be built to a cowl unit external design, with dimensions of long, width , and height . The locomotives retain a twin cab design. Fuel tank capacity is , with available for traction, and a braking force of maximum. The European version is expected to be re-designed to meet 'European Driver Desk' recommendations, and UIC 612 standards, with a central driving position. The L620 version is expected to have a redesigned bogie. The track gauge for the PH37ACi can be from to .
Kits for the new design were expected to be shipped to Tülomsaş (Turkey) in early 2012. A Tulomsas assembled locomotive in Heavy Haul International branding was exhibited at Innotrans trade fair in September 2012.
European freight operator Heavy Haul Power International took a delivery of pilot production 9 Powerhaul locomotives assembled at Tulomsas. They were stored in Cottbus, Germany for several years as their buyer had no use for them. In 2020 stored PH37ACai locomotives were returned to Turkey for conversion from 1435 mm gauge to 1524 mm gauge for operations in Finland. They were also equipped with Finnish JKV train protection system and Russian standard SA3 couplers. Locomotives were delivered for Finnish operator North Rail (then Operail Finland) in 2020. Finnish locomotive registry designation for PH37ACai is Dr20 (D = diesel, r = raskas (heavy), type 20). Units have been used for goods traffic from Russia to Finland.
| PH37ACmi | Freightliner | Class 70/0 | 19 | 2007 (order) | 30 units ordered via Lloyds TSB Leasing for Freightliner. Initial 20 of ordered delivered to Freightliner. One unit (70 012) damaged in unloading and returned to the United States. |
| PH37ACmi | TCDD / Colas Rail | TCDD DE37000 / BR Class 70/8 | 1 | 2011 (built) | Assembled in Turkey by Tülomsaş as demonstrator. Initially numbered as TCDD 37001. Shipped to UK in 2012, renumbered 70 099. Acquired by Colas in 2013, renumbered 70 801. |
| PH37ACmi | Colas Rail | Class 70/8 | 10 | 2013 (order) | Colas Rail order for 10 units made in 2013. Order made up from remainder of 2007 order of 30 for Lloyds leasing was taken up by Colas in 2013. First Colas unit 70 801 is former TCDD demonstrator. |
| PH37ACmi | Colas Rail | Class 70/8 | 7 | 2015 (order) | Colas Rail order for 7 units made in 2015. |
| PH37ACai | North Rail (formerly Operail Finland) | Dr20 | 9 | 2012 (launch) | Converted to 1524 mm gauge and EBICAB installed. Launch customer Heavy Haul Power International GmbH (HHPI), for European mainland. Unveiled at Innotrans 2012. Initially used for European certification in Germany, and Benelux. |
| PH37ACi | TCDD | TCDD DE 36000 | 20 | 2013 (order) | 20 units ordered for Turkish State Railways (TCDD) as part of an order of 50 to be assembled by Tulomsas. Production of locomotives during 2014-. |
| PH37ACi | 30 | 2013 (order) | Units to be assembled for unspecified "'regional export markets' in Europe, the Middle East and North Africa. | ||
| PH37ACi | Korail | Korail Class 7600 | 25 | 2014 | Locomotives ordered by Korail in 2011 and being built in association with Hyundai Rotem for use on passenger and freight services from 2014. Operating speed up to 150 km/h. see also 한국철도공사 7600호대 디젤 기관차 |
| PH37ACmai | Pacific National | PH | 3 | 2014 | 3 prototype demonstrators built by UGL Rail, Australia |
| PH37ACi | Körfez Ulaştırma | 5 | 2019 | Assembled by Tülomsaş Wabtec: Five Locomotives for Turkey Railway Age 26 July 2019 |
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