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South African Class 35-000

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South African Class 35-000
No. 35-016 at Worcester, Western Cape, 13 April 2006
Type and origin
Power typeDiesel-electric
DesignerGeneral Electric
BuilderGeneral Electric
Serial number38161-38210, 38724-38743 [1]
ModelGE U15C
Build date1972-1973
Total produced70
Specifications
Configuration:
 • AARC+C
 • UICCo'Co' (Co+Co interlinked bogies)
Gauge3 ft 6 in (1,067 mm)
Wheel diameter915 mm (36.0 in)
Wheelbase3.188 m (10 ft 5.5 in) per bogie
7.860 m (25 ft 9.4 in) between pivots
10.782 m (35 ft 4.5 in) overall
Length15.152 m (49 ft 8.5 in)
Width2.753 m (9 ft 0.4 in)
Height3.874 m (12 ft 8.5 in)
Axle load13.720 t (13.503 long tons; 15.124 short tons)
Loco weight82.000 t (80.705 long tons; 90.390 short tons) average
82.320 t (81.0 long tons; 90.7 short tons) maximum
Fuel typeFuel oil
Fuel capacity2,700 L (590 imp gal; 710 US gal)
Prime moverGE 7FDL-8 4 stroke V8
RPM range385 rpm low idle
450 rpm idle
1,050 rpm maximum
Engine typeDiesel engine
AspirationElliott H-584 turbocharger
GeneratorDC 10 pole GE 5GT-581C15
Traction motorsSix GE 5GE-764-C1 DC 4 pole
* 655A 1 hour
* 645A continuous at 17 km/h (11 mph)
Transmission90/17 gear ratio
MU working4 maximum
Loco brake28-LAV-1
Dynamic brake peak effort:
138 kN (31,000 lbf) at 28 km/h (17 mph)
Train brakes740 litres (200 US gal) main reservoir
Compressor capacity:
0.033 m3/s (1.2 cu ft/s) at idle
Exhauster capacity:
0.130 m3/s (4.6 cu ft/s) at idle
Safety systemsVigilance control
Performance figures
Power output1,230 kW (1,650 hp) starting
1,160 kW (1,560 hp) continuous
Tractive effort201 kN (45,000 lbf) starting
161 kN (36,000 lbf) continuous at 21 km/h (13 mph)
Factor of adh.25% starting
20% continuous
Brakeforce60% ratio at 345 kPa (50.0 psi) brake cylinder pressure
Career
Number in class70
Delivered1972-1973
First run1972 [2]

Between March 1972 and May 1973 the South African Railways placed seventy Class 35-000 GE U15C diesel-electric locomotives in service.[1][2]

Manufacturer

The South African Class 35-000 type GE U15C diesel-electric locomotive was designed and built for the South African Railways (SAR) by General Electric (GE) and imported. The first batch of fifty locomotives were delivered in 1972 with the first locomotives arriving in March, numbered 35-001 to 35-050, followed by a second batch of twenty in 1973, numbered 35-051 to 35-070. The last locomotives arrived in May 1973.[1][2][3]

Class 35 series

GE and EMD designs

Inter-bogie linkage

South Africa’s Class 35 locomotive series consists of four sub-classes, the GE Class 35-000 and 35-400 and the Electro-Motive Diesel (EMD) Class 35-200 and 35-600. Both these manufacturers also produced locomotives for the South African Classes 33, 34 and 36.[2]

The locomotive has interlinked bogies, hence the "Co+Co" wheel arrangement classification. The linkage is usually hidden from view by the saddle-shaped fuel tank.

Distinguishing Features

With the GE Class 35 locomotives, the Class 35-000 and 35-400 are visually indistinguishable from each other. An externally visible modification that is done during major overhauls is the addition of a saddle hood straddling the hump on the long hood behind the cab. By 2011 this modification had been done on a large number of Class 35-000s, but not yet on any Class 35-400s.[4][5]

Service

South African Railways

The Class 35 is South Africa’s standard branch line diesel-electric locomotive. GE Class 35-000s were designed for light rail conditions across difficult terrain and they work on most branch lines in the central, western, southern and southeastern parts of the country.[3]

NLPI

New Limpopo Projects Investments Limited (NLPI), a Mauritius registered company, specialises in private sector investments using the build-operate-transfer (BOT) concept. It has three connected railway operations in Zimbabwe and Zambia that form a rail link between South Africa and the Congo.[1]

In Zambia the RSZ locomotive fleet includes former ZR locomotives, but the rest of the locomotive fleet of all three operations consist of EMD Class 34-200, 34-600 and 34-800 and GE Class 35-000 and Class 35-400 locomotives from Transnet Freight Rail (TFR). These locomotives are sometimes marked or branded as either BBR or LOG or both, but their status, whether leased or loaned, is unclear since they are still on the TFR roster and still often work in South Africa as well. The locomotives do not appear to be restricted to working in any one of the three operations sections and have been observed being transferred between Zimbabwe and Zambia across the bridge at Victoria Falls as required.[1][6]

Liveries

The main picture shows number 35-016 in Spoornet blue livery with outline numbers and with a saddle hood, at Worcester, Western Cape on 13 April 2006.

No. 35-001 at Stikland, Cape Town, in Spoornet blue livery with outline numbers and with a saddle hood, 16 March 2007
No. 35-009 at Klawer, Western Cape, in Spoornet blue livery without side numbers and without a saddle hood, 16 May 2006
No. 35-031 at the Transwerk shops in Bloemfontein, Free State, awaiting repair after accident damage, 7 April 2006
No. 35-060 at Bellville, Cape Town, in Spoornet blue livery with outline numbers and without a saddle hood, 26 April 2009
No. 35-066 at Biesiesfontein Farm near Moorreesburg in Spoornet orange livery without a saddle hood, 9 June 2007
No. 35-067 at Stikland, Cape Town, in Spoornet orange livery and with a saddle hood, 22 March 2007

See also

References

  1. ^ a b c d e Middleton, John N. (2002). Railways of Southern Africa Locomotive Guide - 2002 (as amended by Combined Amendment List 4, January 2009) (2nd, Dec 2002 ed.). Herts, England: Beyer-Garratt Publications. pp. 38, 41–42.
  2. ^ a b c d South African Railways Index and Diagrams Electric and Diesel Locomotives, 610 mm and 1065 mm Gauges, Ref LXD 14/1/100/20, 28 January 1975, as amended
  3. ^ a b Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 141–142. ISBN 0869772112.
  4. ^ 35-003 without saddle filter
  5. ^ 35-001 with saddle filter
  6. ^ Railways Africa, 7 Dec 2006: 35 Class Diesels