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South African Class 5E, Series 1

January 19, 2023

The South African Railways Class 5E, Series 1 of 1955 was an electric locomotive.

South African Class 5E, Series 1
Class leader no. E259 at the Bellville Depot, Cape Town, 24 May 2009
Type and origin
Power typeElectric
DesignerEnglish Electric
BuilderEnglish Electric
Vulcan Foundry
Serial numberEE 2163-2222
VF E137-E148
ModelEE 5E
Build date1954-1955
Total produced60
Specifications
Configuration:
​
 • AARB-B
 • UICBo'Bo'
 • CommonwealthBo-Bo
Gauge3 ft 6 in (1,067 mm) Cape gauge
Wheel diameter1,219 mm (48.0 in)
Wheelbase11,279 mm (37 ft 1⁄16 in)
 • Bogie3,430 mm (11 ft 3+1⁄16 in)
Pivot centres7,849 mm (25 ft 9 in)
Panto shoes6,972 mm (22 ft 10+1⁄2 in)
Length:
​
 • Over couplers15,494 mm (50 ft 10 in)
 • Body14,631 mm (48 ft 0 in)
Width2,896 mm (9 ft 6 in)
Height:
​
 • Pantograph4,089 mm (13 ft 5 in)
 • Body height3,937 mm (12 ft 11 in)
Axle load21,591 kg (47,600 lb)
Adhesive weight86,364 kg (190,400 lb)
Loco weight86,364 kg (190,400 lb)
Electric system/s3 kV DC catenary
Current pickup(s)Pantographs
Traction motorsFour EE 529
 • Rating 1 hour377 kW (506 hp)
 • Continuous325 kW (436 hp)
Gear ratio18:67
Loco brakeAir & Regenerative
Train brakesVacuum
CouplersAAR knuckle
Performance figures
Maximum speed97 km/h (60 mph)
Power output:
​
 • 1 hour1,508 kW (2,022 hp)
 • Continuous1,300 kW (1,700 hp)
Tractive effort:
​
 • Starting200 kN (45,000 lbf)
 • 1 hour128 kN (29,000 lbf)
 • Continuous104 kN (23,000 lbf)
Career
OperatorsSouth African Railways
Spoornet
Impala Platinum
Driefontein
ClassClass 5E
Number in class60
NumbersE259-E318
NicknamesKlein Mamba (Little Mamba)
Delivered1955-1956
First run1955

In 1955 and 1956, the South African Railways placed sixty Class 5E, Series 1 electric locomotives with a Bo-Bo wheel arrangement in mainline service. The Class 5E introduced what eventually became the most prolific locomotive body shape to ever run on South African rails.[1][2]

Manufacturers

To cope with increased traffic loads on the South African Railways (SAR) in the 1950s, the capacity of its 3 kV DC electrified lines had to be increased. Since more sections in Natal and Transvaal were being electrified, the SAR placed an order for the design and production of a new and more powerful Bo-Bo mainline electric locomotive with English Electric (EE) in 1952. Sixty Class 5E, Series 1 locomotives were delivered and placed in service in 1955 and 1956, numbered in the range from E259 to E318.[1][2][3]

The first 48 units, numbered in the range from E259 to E306, were built at the Dick Kerr works of EE in Preston in 1954 and 1955, while the construction of the last twelve, numbered in the range from E307 to E318, was subcontracted to Vulcan Foundry. These twelve, with EE works numbers in the range from 2211 to 2222, were therefore also allocated Vulcan works numbers in the range from E137 to E148.[4][3]

They were delivered in a bottle green livery with red cowcatchers, initially without the yellow lines and whiskers which were added later to improve their visibility. Since the long Class 4E was already nicknamed Groen Mamba (Green Mamba) by Cape Western enginemen, the shorter Class 5E promptly became the Klein Mamba (Little Mamba) when they first appeared on that section, while the Class 4E was "promoted" to Groot Mamba (Large Mamba). Beginning in 1960, a Gulf Red and yellow whiskers livery gradually replaced the green and yellow.[3]

With both the bottle green and later the Gulf Red SAR liveries, the units had red cowcatchers, except in the Cape Western region. Locomotives based at the Bellville Depot could be identified by their yellow cowcatchers.

Orientation

These dual cab locomotives had a roof access ladder on one side only, just to the right of the cab access door. The roof access ladder end was marked as the no. 2 end. A corridor along the centre of the locomotive connected the cabs, which were identical except that cab 2 was where the handbrake was located.[1]

Brakes

While the locomotive itself used air brakes, it was only equipped to operate trains with vacuum brakes. While hauling a train, the locomotive's air brake system would be made subordinate to the train's vacuum brake system and would come into operation as the vacuum brakes were being applied, gradually building up to its maximum of 350 kilopascals (51 pounds per square inch). While working a train downgrade, the locomotive's regenerative braking system would also work in conjunction with the train's vacuum brakes.

The locomotive's air brakes would usually only be used along with the train brakes during emergencies. Under normal circumstances the train would be controlled by using the train brakes alone to slow down and stop.

While the locomotive was stopped, the air brakes on each bogie could be applied independently. The handbrake or parking brake, located in cab 2, only operated on the unit's last axle, the no. 7 and 8 wheels.

Class 5E series

The Class 5E was produced in three series, the EE- and Vulcan-built Series 1 and the Vulcan-built Series 2 and Series 3. Between 1955 and 1959, altogether 160 Class 5E locomotives were placed in service, 60 Series 1, 45 Series 2 and 55 Series 3.[1][3]

The traditional number plates on the sides of SAR locomotives were usually in a perfect oval shape and were usually cast in a leaded bronze. On the Class 5E, Series 1, however, the plates were in an oval shape with blunted ends and were cast in aluminium.[4]

Legacy

The Class 5E introduced what eventually became the most prolific locomotive body shape to ever run on South African rails, serving on all the 3 kV DC lines country-wide. The body shape and dimensions were continued with the Class 5E1 in 1959, the Class 6E and the Class 6E1 from 1969 to 1985, and still later with the rebuilding of Class 6E1 locomotives to Class 18E, a project which began in 2000.[1][2][3]

Service

The Class 5E entered service on the Natal mainline between Durban and Johannesburg and eventually served almost country-wide as electrification was completed on more mainlines. In 1960, sixty units of the Class 5E family were allocated to the Witbank section upon completion of its electrification. In December 1961 twelve of them were replaced by Class 32-000 diesel-electric locomotives and transferred to the newly-electrified Touws River-Beaufort West section. More followed to replace the Class 25 condensers that were being transferred from that section to Beaconsfield in Kimberley. At the time, electric locomotives were urgently needed on the Touwsrivier–Beaufort West section, most likely because of the water issues in the Karoo and the redeployment of the Class 25 condensing steam locomotives to the Northern Cape.[5]

After withdrawal from service, six Class 5E, Series 1 locomotives were sold into industrial service.

  • Five, numbers E269, E274, E284, E289 and E318, were sold to the Impala platinum mine in Rustenburg.
  • No. E290 was sold to the Driefontein gold mine near Carletonville.[4]

Preservation

Currently only two have been preserved so far in preservation of the Class 5E Series 1 variants.

  • Class 5E E259 the class leader is preserved at Bloemfontein Loco Depot with intentions for it to be a museum as this loco is the first sub-leader of the Class 5E Series 1's and is marked as a historic locomotive.[6]
  • Class 5E E293 Incorrectly numbered E262 is preserved at Bellville Loco Depot.[6]

Works numbers

The EE and Vulcan works numbers of the Class 5E, Series 1 and their known disposal are shown in the table.[4]

Illustration

  •  

    Left side of no. E259, with its no. 2 end at right, Bloemfontein, 18 September 2015

  •  

    No. 2 end of no. E293, renumbered E262 in preservation, Bellville, 4 July 2017

References

 
Wikimedia Commons has media related to South African Class 5E, Series 1.
  1. ^ a b c d e 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
  2. ^ a b c Dulez, Jean A. (2012). Railways of Southern Africa 150 Years (Commemorating One Hundred and Fifty Years of Railways on the Sub-Continent – Complete Motive Power Classifications and Famous Trains – 1860–2011) (1st ed.). Garden View, Johannesburg, South Africa: Vidrail Productions. p. 292. ISBN 9 780620 512282.
  3. ^ a b c d e Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 127–128. ISBN 0869772112.
  4. ^ a b c d 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. 50, 62.
  5. ^ Soul of A Railway, System 7, Western Transvaal, based in Johannesburg, Part 21: Witbank Line by Les Pivnic, Eugene Armer, Peter Stow and Peter Micenko. Caption 10. (Accessed on 4 May 2017)
  6. ^ a b Sandstone Heritage Trust - 2017016 Locomotive status - January 2017. (Accessed on 8 March 2019)

January 19, 2023
south, african, class, series, south, african, railways, class, series, 1955, electric, locomotive, class, leader, e259, bellville, depot, cape, town, 2009type, originpower, typeelectricdesignerenglish, electricbuilderenglish, electricvulcan, foundryserial, nu. The South African Railways Class 5E Series 1 of 1955 was an electric locomotive South African Class 5E Series 1Class leader no E259 at the Bellville Depot Cape Town 24 May 2009Type and originPower typeElectricDesignerEnglish ElectricBuilderEnglish ElectricVulcan FoundrySerial numberEE 2163 2222VF E137 E148ModelEE 5EBuild date1954 1955Total produced60SpecificationsConfiguration AARB B UICBo Bo CommonwealthBo BoGauge3 ft 6 in 1 067 mm Cape gaugeWheel diameter1 219 mm 48 0 in Wheelbase11 279 mm 37 ft 1 16 in Bogie3 430 mm 11 ft 3 1 16 in Pivot centres7 849 mm 25 ft 9 in Panto shoes6 972 mm 22 ft 10 1 2 in Length Over couplers15 494 mm 50 ft 10 in Body14 631 mm 48 ft 0 in Width2 896 mm 9 ft 6 in Height Pantograph4 089 mm 13 ft 5 in Body height3 937 mm 12 ft 11 in Axle load21 591 kg 47 600 lb Adhesive weight86 364 kg 190 400 lb Loco weight86 364 kg 190 400 lb Electric system s3 kV DC catenaryCurrent pickup s PantographsTraction motorsFour EE 529 Rating 1 hour377 kW 506 hp Continuous325 kW 436 hp Gear ratio18 67Loco brakeAir amp RegenerativeTrain brakesVacuumCouplersAAR knucklePerformance figuresMaximum speed97 km h 60 mph Power output 1 hour1 508 kW 2 022 hp Continuous1 300 kW 1 700 hp Tractive effort Starting200 kN 45 000 lbf 1 hour128 kN 29 000 lbf Continuous104 kN 23 000 lbf CareerOperatorsSouth African RailwaysSpoornetImpala PlatinumDriefonteinClassClass 5ENumber in class60NumbersE259 E318NicknamesKlein Mamba Little Mamba Delivered1955 1956First run1955In 1955 and 1956 the South African Railways placed sixty Class 5E Series 1 electric locomotives with a Bo Bo wheel arrangement in mainline service The Class 5E introduced what eventually became the most prolific locomotive body shape to ever run on South African rails 1 2 Contents 1 Manufacturers 2 Orientation 3 Brakes 4 Class 5E series 5 Legacy 6 Service 7 Preservation 8 Works numbers 9 Illustration 10 ReferencesManufacturers EditTo cope with increased traffic loads on the South African Railways SAR in the 1950s the capacity of its 3 kV DC electrified lines had to be increased Since more sections in Natal and Transvaal were being electrified the SAR placed an order for the design and production of a new and more powerful Bo Bo mainline electric locomotive with English Electric EE in 1952 Sixty Class 5E Series 1 locomotives were delivered and placed in service in 1955 and 1956 numbered in the range from E259 to E318 1 2 3 The first 48 units numbered in the range from E259 to E306 were built at the Dick Kerr works of EE in Preston in 1954 and 1955 while the construction of the last twelve numbered in the range from E307 to E318 was subcontracted to Vulcan Foundry These twelve with EE works numbers in the range from 2211 to 2222 were therefore also allocated Vulcan works numbers in the range from E137 to E148 4 3 They were delivered in a bottle green livery with red cowcatchers initially without the yellow lines and whiskers which were added later to improve their visibility Since the long Class 4E was already nicknamed Groen Mamba Green Mamba by Cape Western enginemen the shorter Class 5E promptly became the Klein Mamba Little Mamba when they first appeared on that section while the Class 4E was promoted to Groot Mamba Large Mamba Beginning in 1960 a Gulf Red and yellow whiskers livery gradually replaced the green and yellow 3 With both the bottle green and later the Gulf Red SAR liveries the units had red cowcatchers except in the Cape Western region Locomotives based at the Bellville Depot could be identified by their yellow cowcatchers Orientation EditThese dual cab locomotives had a roof access ladder on one side only just to the right of the cab access door The roof access ladder end was marked as the no 2 end A corridor along the centre of the locomotive connected the cabs which were identical except that cab 2 was where the handbrake was located 1 Brakes EditWhile the locomotive itself used air brakes it was only equipped to operate trains with vacuum brakes While hauling a train the locomotive s air brake system would be made subordinate to the train s vacuum brake system and would come into operation as the vacuum brakes were being applied gradually building up to its maximum of 350 kilopascals 51 pounds per square inch While working a train downgrade the locomotive s regenerative braking system would also work in conjunction with the train s vacuum brakes The locomotive s air brakes would usually only be used along with the train brakes during emergencies Under normal circumstances the train would be controlled by using the train brakes alone to slow down and stop While the locomotive was stopped the air brakes on each bogie could be applied independently The handbrake or parking brake located in cab 2 only operated on the unit s last axle the no 7 and 8 wheels Class 5E series Edit Builder s plate The Class 5E was produced in three series the EE and Vulcan built Series 1 and the Vulcan built Series 2 and Series 3 Between 1955 and 1959 altogether 160 Class 5E locomotives were placed in service 60 Series 1 45 Series 2 and 55 Series 3 1 3 The traditional number plates on the sides of SAR locomotives were usually in a perfect oval shape and were usually cast in a leaded bronze On the Class 5E Series 1 however the plates were in an oval shape with blunted ends and were cast in aluminium 4 Legacy EditThe Class 5E introduced what eventually became the most prolific locomotive body shape to ever run on South African rails serving on all the 3 kV DC lines country wide The body shape and dimensions were continued with the Class 5E1 in 1959 the Class 6E and the Class 6E1 from 1969 to 1985 and still later with the rebuilding of Class 6E1 locomotives to Class 18E a project which began in 2000 1 2 3 Service EditThe Class 5E entered service on the Natal mainline between Durban and Johannesburg and eventually served almost country wide as electrification was completed on more mainlines In 1960 sixty units of the Class 5E family were allocated to the Witbank section upon completion of its electrification In December 1961 twelve of them were replaced by Class 32 000 diesel electric locomotives and transferred to the newly electrified Touws River Beaufort West section More followed to replace the Class 25 condensers that were being transferred from that section to Beaconsfield in Kimberley At the time electric locomotives were urgently needed on the Touwsrivier Beaufort West section most likely because of the water issues in the Karoo and the redeployment of the Class 25 condensing steam locomotives to the Northern Cape 5 After withdrawal from service six Class 5E Series 1 locomotives were sold into industrial service Five numbers E269 E274 E284 E289 and E318 were sold to the Impala platinum mine in Rustenburg No E290 was sold to the Driefontein gold mine near Carletonville 4 Preservation EditCurrently only two have been preserved so far in preservation of the Class 5E Series 1 variants Class 5E E259 the class leader is preserved at Bloemfontein Loco Depot with intentions for it to be a museum as this loco is the first sub leader of the Class 5E Series 1 s and is marked as a historic locomotive 6 Class 5E E293 Incorrectly numbered E262 is preserved at Bellville Loco Depot 6 Works numbers EditThe EE and Vulcan works numbers of the Class 5E Series 1 and their known disposal are shown in the table 4 Class 5E Series 1 Loco no EE worksno Vulcanworks no SoldtoE259 2163 PreservedE260 2164E261 2165E262 2166E263 2167E264 2168E265 2169E266 2170E267 2171E268 2172E269 2173 ImpalaE270 2174E271 2175E272 2176E273 2177E274 2178 ImpalaE275 2179E276 2180E277 2181E278 2182E279 2183E280 2184E281 2185E282 2186E283 2187E284 2188 ImpalaE285 2189E286 2190E287 2191E288 2192E289 2193 ImpalaE290 2194 DriesE291 2195E292 2196E293 2197 Preserved incorrectly numbered E262 E294 2198E295 2199E296 2200E297 2201E298 2202E299 2203E300 2204E301 2205E302 2206E303 2207E304 2208E305 2209E306 2210E307 2211 E137E308 2212 E138E309 2213 E139E310 2214 E140E311 2215 E141E312 2216 E142E313 2217 E143E314 2218 E144E315 2219 E145E316 2220 E146E317 2221 E147E318 2222 E148 ImpalaIllustration Edit Left side of no E259 with its no 2 end at right Bloemfontein 18 September 2015 No 2 end of no E293 renumbered E262 in preservation Bellville 4 July 2017References Edit Wikimedia Commons has media related to South African Class 5E Series 1 a b c d e 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 a b c Dulez Jean A 2012 Railways of Southern Africa 150 Years Commemorating One Hundred and Fifty Years of Railways on the Sub Continent Complete Motive Power Classifications and Famous Trains 1860 2011 1st ed Garden View Johannesburg South Africa Vidrail Productions p 292 ISBN 9 780620 512282 a b c d e Paxton Leith Bourne David 1985 Locomotives of the South African Railways 1st ed Cape Town Struik pp 127 128 ISBN 0869772112 a b c d 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 50 62 Soul of A Railway System 7 Western Transvaal based in Johannesburg Part 21 Witbank Line by Les Pivnic Eugene Armer Peter Stow and Peter Micenko Caption 10 Accessed on 4 May 2017 a b Sandstone Heritage Trust 2017016 Locomotive status January 2017 Accessed on 8 March 2019 Retrieved from https en wikipedia org w index php title South African Class 5E Series 1 amp oldid 957413607, wikipedia, wiki, book, books, library,

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