EMD G22CU

The EMD G22CU is a narrow gauge diesel-electric locomotive designed and built by the Electro-Motive Division of General Motors. It was manufactured by several licensees, and exported to many countries including Argentina, Australia, Brazil, Egypt, Iran, New Zealand, Nigeria, Pakistan, South Korea, Yugoslavia and Taiwan (ROC) (countries with more than 20 units).

EMD G22CU
Type and origin
Power typeDiesel-electric
BuilderGM Electro-Motive Division. Under license (different G22 versions): Astarsa (Argentina), Đuro Đaković (Yugoslavia), Henschel und Sohn (Germany), MACOSA (Spain), Nohab (Sweden), Villares (Brazil)
Build date1970s
Specifications
Configuration:
​
 • AARC-C
Gauge1,000 mm, 3 ft 6 in (1,067 mm)
Length15.506 m (50 ft 10.5 in)
Brazilians:15.970 m
Width2.8 m (9 ft 2 in)
Height3.772 m (12 ft 4.5 in)
Axle load15.333 t
Loco weight92 tonnes (90.5 long tons; 101 short tons)
Fuel capacity3,080 litres (680 imp gal; 810 US gal)
Prime moverEMD 12-645
Performance figures
Maximum speed105 km/h (65 mph)

Overview

G22 locomotives were first built in 1967 with the export markets in mind. For that reason they carried a low per-axle weight. The CU version sports a C-C traction motors configuration, and 1-meter gauge. Its main engine is an EMD 12-645. They were produced at the General Motor's Electro-Motive Diesel plants at La Grange and London -Canada-, as well at plants -under license- in other countries, including Argentina and Spain.

Argentina
A TACyL locomotive on the General Belgrano Railway.

In 1972 Ferrocarriles Argentinos bought 250 locomotives from Electro Motive Division of General Motors, including G22 and GT22 models.[1] 96 of them where delivered to the Ferrocarril Belgrano line, so they were the CU version, adapted to its 1-meter gauge. Belgrano Norte line received 20 built at La Grange, while Belgrano Sur line received 5 produced at London -Canada-. The remaining ones were built by Astarsa at San Fernando, Buenos Aires.

At first they were assigned to the suburban passenger service in Buenos Aires. Afterwards many of them were sent to the northern part of the country, where they ran services among several cities including Salta, Resistencia, Embarcación, Formosa and Tucumán. When Ferrocarriles Argentinos was dismembered and privatised at the beginning of the 1990s, these locomotives were handed over to several different companies including Ferrovías (Buenos Aires northern local line), Metropolitano (Buenos Aires southern local line, then taken by UGOFE) and Belgrano Cargas (long-distance freight service).

As of 2015 many of them are still in service for Belgrano Norte and Belgrano Sur lines and State-owned freight company, Belgrano Cargas.[2][3]

Brazil

The Brazilian railways company, RFFSA, acquired 24 G22CUs -produced in Spain by Materiales y Construcciones SA under license- in 1971. They were put in service at the Division #13 Rio Grande do Sul, serving the states of Paraná, Santa Catarina and Rio Grande do Sul. Due to RFFSA privatisation 21 of the locomotives (the others were already retired) where transferred to Ferrovia Sul Atlântico SA, which afterwards became part of ALL.[4]

Taiwan
R155 hauled Chukuang Exp. (train number 67) in Zhixue, Hualien.

In order to improve the hauling efficacy, Taiwan Railway Administration bought 20 G22CU from GM-EMD IN 1973. They were named the "R150" series and numbered from R151 to R170 (EMD serial: 712755-712764 and 713120-713129).[5] All the R150 series arrived Taiwan between 1973 and 1974. In 1982, five more G22CU (R171-R175, EMD serial: 818016-1 to 818016-5) were purchased. Currently, their main arena is the East-Trunk Line (東部幹線, from Badu Station to Taitung Station, including the Yilan Line, North-Link Line, and Taitung Line).

One of the locomotives, R164, was removed from service after an accident in 2001.[6]

These locomotives are very similar to G22CW, which are standard or broad gauge, and to GM GT22 Series, which are turbocharged.

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See also

References
  1. "Las incansables GT-22" by Andrés Blinstein Archived 14 March 2015 at the Wayback Machine, Portal de Trenes, 8 Jun 2014
  2. Moscaro, Alejandro (2009). "Las General Motors G-22 (Parte 1)", Tren Rodante, 122 -2009, March-(5).
  3. Moscaro, Alejandro (2009). "Las General Motors G-22 (Parte 2)", Tren Rodante, 123 -2009, April-(9).
  4. Wikipedia Portuguese G22 article, pt:EMD G22CU. Retrieved 31 August 2009.
  5. UNofficial EMD Homepage G22CU orders. Retrieved 10 June 2010.
  6. Wikipedia (Chinese Traditional): TRA R150 Series Diesel-Electric Locomotive (臺鐵R150型柴電機車), zh-tw:臺鐵R150型柴電機車. Retrieved 9 June 2010.
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