EMD G22

EMD G22 Series

RFFSA MACOSA G22U #4392-6L pulling a passenger train in the Ferrovia Curitiba–Paranaguá line.

Type and origin Power type Diesel-electric Builder Various licencees from Electro-Motive Division (see models listed) Model G22 Build date January 1969 - November 1991 Total produced 635

Specifications AAR wheel arr. B-B, C-c UIC class Bo'–Bo' ; A-1-A A-1-A, Co'-Co' Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge 3 ft 6 in (1,067 mm) 1,000 mm (3 ft 3 3⁄8 in) metre gauge Driver dia. 40 inches (1,016 mm) Wheelbase 43 feet 6 inches (13.26 m) between bolsters; 8 ft (2,438 mm) between axles in each truck Length 46 feet 6 inches (14.17 m)) over the coupler pulling faces Width 9 feet 3 inches (2.819 m) over the grabirons Height 12 ft 6 15⁄16 in (3.834 m) Loco weight 71 t (69.9 long tons; 78.3 short tons) Fuel capacity 1,700–2,000 US gal (6,435–7,571 L; 1,416–1,665 imp gal) Prime mover 12-645E Engine type V12 diesel engine Aspiration Roots Blower Cylinders 12

Performance figures Maximum speed 62–93 mph (100–150 km/h) Power output 1,500–1,650 hp (1,119–1,230 kW)

Career Nicknames "Pup” Locale Australia, Brazil, Egypt, Guinea, Iran, Israel, New Zealand, Sweden, Taiwan & Yugoslavia

The EMD G22 Locomotive Series made their debut in 1967 after the rise in popularity of the export EMD G12. Designed to meet most First World, Second World and Third World countries, the G22 Series were now equipped with a naturally aspirated EMD 645 Series engine as well as four axle Flexicoil Type-B trucks which carry a low per-axle weight. Based on customer input, the G22 Series would be defined by various designations that suit the customer's railway operations.

The standard suffixes applied after the G22 designation were if the customer purchased locomotives with specific traction motors to fit Narrow Gauge (U) or Broad Gauge (W) rails. As the years progressed, the customers began to have more options available for their locomotives such as EMD Dash 2 Electronics, Alternators instead of Generators, A-1-A running gear and/or steam generators, etc.

The G22 designation can freely apply to the designs of any EMD export model or a licensee of EMD as long as the electrical and mechanical gear were left unaltered.

With the introduction of the 645 engine in export models in 1967, the model numbers changed by adding "10". Thus the G12 now became the G22. This new model was an upgrade from the 567 series G12 and brought forward various innovations for almost four decades. To this day, the G22 series is the most common diesel found in Brazil, New Zealand and in Egypt.

The G22 Series was one of the first models to be commonly constructed outside of the United States and to have its own separate designation based on traction motors/gauge, generator, etc. Unlike the G12, which its six axle version was the GR12, the six axle version of the G22 Series was designated as G22C. The customer then had options to apply on the locomotive as desired.

Several models were introduced:

The G22W first appeared in 1967. To separate itself from its predecessor, the G22W was identified by a W suffix to indicate that this model was supplied with traction motors adjustable only for Wide gauged rails (Standard gauge up to Indian gauge).