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The EMD G18 was an export locomotive introduced by GM-EMD in the late 1960s. The standard EMD suffixes applied after the G18 designation to indicate if the customer purchased locomotives with specific traction motors to fit narrow gauge (U) or broad gauge (W) rails. An (L) indicates a locomotive built with a lightweight frame, and (6) indicates A1A-A1A trucks. The similar EMD GA18 was a G18 designed as an extremely light locomotive with low axle loading and used freight car trucks driven by a cardan shaft and underframe mounted traction motors like its predecessor, the EMD GA8. A further variation was the G18B. They are powered by an EMD 8-645E prime mover rated at 1100 bhp and 1000 hp for traction[1] and were produced with A1A-A1A or B-B trucks.

EMD G18
Ferronor G18U 72 (Former Andes Copper Mining)
Type and origin Power type Diesel-electric Builder GM-EMD La Grange, Illinois, USA Model G18 Build date March 1968-October 1978 Total produced 50
Specifications Configuration: ​  • AAR A1A-A1A or B-B Gauge 1,000 mm (3 ft 3+3⁄8 in) 3 ft 6 in (1,067 mm) 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 40 in (1,016 mm) Wheelbase 8 ft 0 in (2.44 m) (Each truck B-B) 10 ft 05 in (3.18 m) (Each truck A1A-A1A) Length 38 ft 0 in (11.58 m) Width 9 ft 8+3⁄4 in (2.97 m) Height 12 ft 2+11⁄16 in (3.73 m) Loco weight 124,000 lb (56,250 kg) (62T, G18U6) 134,100 lb (60,830 kg) (67.5T, G18U) 142,900 lb (64,820 kg) (71.45T, G18W) Fuel capacity 500 US gal (1,900 l; 420 imp gal) Lubricant cap. 130 US gal (490 l; 110 imp gal) Water cap. 126 US gal (480 l; 105 imp gal) Sandbox cap. 9 cu ft (0.25 m3) Prime mover GM 8-645E Engine type V8 2-stroke diesel Aspiration Roots blower Generator GM D25 Traction motors GM D29 (4) Cylinders 8 Loco brake Straight air Train brakes Air or Vacuum schedule 26-LA
Performance figures Power output 1,000 hp (750 kW)
Career Locale South America, Middle East, Africa, Asia Disposition Some scrapped, many still operating

Several countries have purchased these locomotives.[2]

A1A-A1A Version Original Owners

Chile

• 1 FCAB 954

Indonesia

• 8 Indonesian Railways BB202 01-BB202 08 (Note: BB202 01 - BB202 03 are GL18U6)

B-B Version Original Owners

Chile

• 2 Andes Copper Mining 71-72

Iran

• 2 Rah E Ahan 40451-40452

Israel

• 1 Rotem Amfert Negev Ltd company in Mishore Rotem (former company name: Negev Phosphates Ltd)

Peru

• 1 Cerro de Pasco 24

Saudi Arabia

• 16 Saudi Govt. Railway 1006-1021

South Africa

• 19 Anglo American Corp. (1 unit no #); 1–3; 21–25; Iron & Steel Corp. 36–42; 661.42-661.44

G18B Original Owners

Algeria

• 5 SNTF 040DH1-040DH5 (Built by GMD)

References

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