South African Class 39-200
South African Class 39-200 | |
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No. 39-242 at Pyramid South, Pretoria, 14 May 2013 | |
Type and origin | |
Power type | Diesel-electric |
Designer | Electro-Motive Diesel |
Builder | Transnet Rail Engineering |
Model | EMD GT26CU-3 |
Build date | 2009-2010 |
Total produced | 50 |
Specifications | |
AAR wheel arr. | C-C |
UIC classification | Co'Co' |
Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
Bogies | 3.632 m (11 ft 11 in) wheelbase |
Wheel diameter | 1,016 mm (40 in) |
Wheelbase | 14.732 m (48 ft 4 in) |
Length | 19.202 m (63 ft 0 in) |
Width | 3 m (9 ft 10 in) |
Height | 3.924 m (12 ft 10.5 in) |
Axle load | 21,000 kg (20.7 long tons) |
Locomotive weight | 126,000 kg (124.0 long tons)[1] |
Fuel type | Fuel oil |
Fuel capacity | 7,400 litres (2,000 US gal) |
Prime mover | EMD 645-E3B 2 stroke V16 |
Engine type | Diesel |
Displacement |
10.570 litres (645 cu in) per cylinder 169.12 litres (10,320 cu in) total |
Traction motors | Six EMD D43 DC |
Performance figures | |
Power output | 2,460 kW (3,300 hp) |
Tractive effort |
350 kN (79,000 lbf) starting 305 kN (69,000 lbf) continuous |
Factor of adhesion |
25% starting 20% continuous |
Locomotive brake | Air & Dynamic braking |
Train brakes | Air & Vacuum |
Safety systems | EM2000 control system |
Career | |
Operator(s) | Transnet Freight Rail |
Class | Class 39-200 |
Number in class | 50 |
Number(s) | 39-201 to 39-250 |
Delivered | 2009-2010 |
First run | 2009 |
The South African Class 39-200 of 2009 is a South African diesel-electric locomotive from the Transnet Freight Rail era.
Near the end of 2009 the first of fifty Class 39-200 Electro-Motive Diesel type GT26CU-3 diesel-electric locomotives were placed in service by Transnet Freight Rail. The locomotives were built new after an earlier project to rebuild older locomotives to Class 39-000 locomotives was aborted.[2]
Manufacture
The Class 39-000 project
In 2005 Transwerk, later renamed Transnet Rail Engineering (TRE) and, in 2013, Transnet Engineering, commenced a project of rebuilding existing locomotives to Class 39-000 locomotives for Spoornet. The Electro-Motive Diesel type EMD GT26CU-3 diesel-electric locomotives were to be rebuilt from Classes 34-600 and 34-800 type GT26MC and Class 37-000 type GT26M2C locomotives. The original locomotives had all been designed by General Motors Electro-Motive Division (GM-EMD) and had been built by General Motors South Africa (GMSA) in Port Elizabeth between 1974 and 1981. Suitable frames from wrecked locomotives were used.[3]
The rebuilding was done at the Transwerk shops in Bloemfontein. It was intended to produce one hundred Class 39-000s, but in spite of the technical success of the TRE part of the project, rebuilding was halted after completing only five locomotives, allegedly due to higher than anticipated cost. It was decided, instead of rebuilding one hundred old locomotives, to rather continue the program by building fifty new Class 39-200 locomotives.[2]
The new Class 39-200
The Class 39-200 locomotives were built new from imported and locally produced components at the Koedoespoort TRE shops east of Pretoria, in collaboration with EMD. By October 2009 more than twenty locomotives had been built and were undergoing road testing, and by April 2010 the last of the fifty locomotives came off the production line, thereby completing the building project in twelve months. They were numbered in the range from 39-201 to 39-250.[4]
Features
Characteristics that distinguish the Class 39-200 from the existing TFR diesel-electric locomotive fleet, which was more than three decades old at the time, are features such as EM2000 microprocessor control, 26% more maximum continuous tractive effort and 15% more tractive horsepower compared to a Class 37-000, and a Knorr-Bremse electronic brake rack (EBR) instead of the old pneumatic braking controls.[5]
The EM2000 control system featured in the Class 39-200 is a proprietary EMD microprocessor-based system that offers improved performance and reliability compared with older locomotives. It manages all critical operating functions and greatly improves tractive effort, while its creep control attains high and low speed adhesion advantages.[6]
Service
The Class 39-200 locomotives were placed in service on the line between the Mpumalanga Lowveld and northern KwaZulu-Natal, working from Lydenburg via Swaziland and Golela to the coal export harbour at Richards Bay.[4][7] In 2013 some Class 39-200s were also observed at the Pyramid South locomotive depot north of Pretoria, along with the predecessor Class 39-000s.
Sides illustrated
All the Class 39-200 locomotives were delivered in the Transnet Freight Rail livery.
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No. 39-224 under construction at Koedoespoort, Pretoria, 2 October 2009
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No. 39-219 at Koedoespoort, Pretoria, 2 October 2009
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No. 39-213 at Koedoespoort, Pretoria, 2 October 2009
See also
- Diesel-electric locomotive numbering and classification
- List of South African locomotive classes
- South African Class 39-000
- South African locomotive history
References
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- ↑ The Ulolwe, South Africa, a monthly railway research/historical publication, Vol. 2 no. 8 (The “39” Special), August 1911, p18. Compiled by Hennie Heymans
- ↑ 2.0 2.1 Railways Africa, 12 Dec 2008: The Class 39 Diesels
- ↑ South African Railways Index and Diagrams Electric and Diesel Locomotives, 610mm and 1065mm Gauges, Ref LXD 14/1/100/20, 28 January 1975, as amended
- ↑ 4.0 4.1 Railways Africa, 6 Apr 2010: Final 39-200 Rolls Out
- ↑ Railways Africa, 21 Feb 2006: Spoornet's Class 39
- ↑ Railways Africa, 30 Mar 2009: Transnet Rail Engineering’s New Locomotive - Class 39-200
- ↑ Railways Africa, 22 Mar 2010: Class 39-200s Enter Service
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