GE PowerHaul

70014 at North Wingfield in September 2012 70805 at Westbury in April 2014 The PowerHaul Class are a 6 axle Co-Co design for heavy mainline freight operations - the design originated in a collaboration between Freightliner who required a more powerful freight locomotive, and General Electric who needed a launch customer for its entry into the European rolling stock market. 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. Freightliner placed an order for 30 units (originally designated JS37ACi) in November 2007. 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. the initial contract was reported to be for production of 50 units, 30 for GE and 20 for TCDD. 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, 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. ==Sub-types==

PH37ACmi The subtype PH37ACmi was originally built for Freightliner with the TOPS designation given Class 70. The design is built to vehicle gauge defined by drawing 'UK L-A1-1806', 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 L620 version is expected to have a redesigned bogie. 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. PH37ACmai In November 2011 GE and UGL Rail announced that it would build two prototype UGL Rail PH37ACmai gauge PowerHaul locomotives. They were intended for use on the narrow gauge networks in Queensland and Western Australia. GE supplied the power and traction package, with UGL constructing the locomotive frame, with some components sourced from India. The first of three prototypes was nearing completion at its Broadmeadow factory in January 2014. They were sold to Pacific National in 2016 for use in Queensland. ==Production and operators==