{{Short description|Class of South African diesel locomotives}} {{Use dmy dates|date=June 2024}} {{Use South African English|date=August 2013}} {{Infobox locomotive | name = South African Class 36-000 | image = Class 36-000 36-013 Rugby.JPG | alt = | caption = No. 36-013 at Rugby, [[Cape Town]], 4 November 2013 | hatnote = | powertype = Diesel-electric | designer = [[General Electric]] | builder = SA GE-DL Locomotive Group | ordernumber = | serialnumber = 40420-40519, 41380-41399, 40586-40589 | buildmodel = GE SG10B | builddate = 1975–1981 | totalproduction = 124 | rebuilder = | rebuilddate = | numberrebuilt = | aarwheels = [[AAR wheel arrangement#B-B|B-B]] | uicclass = [[Bo'Bo']] | Britishclass = [[Bo-Bo]] | gauge = {{Track gauge|Cape|allk=on}} | bogies = | leadingdiameter = | wheeldiameter = {{convert|915|mm|in|1|abbr=on}} | trailingdiameter = | minimumcurve = | wheelbase = {{convert|10782|mm|ftin|1|abbr=on}} | bogie = {{convert|2082|mm|ftin|1|abbr=on}} | pivotcentres = {{convert|8700|mm|ftin|1|abbr=on}} | wheelspacing = | length = | over couplers = {{convert|15151|mm|ftin|1|abbr=on}} | over bufferbeams = | body = | width = {{convert|2727|mm|ftin|1|abbr=on}} | height = {{convert|3924|mm|ftin|1|abbr=on}} | axleload = {{convert|18250|kg|lb|abbr=on}} | leadingbogie/pony= | weightondrivers = {{convert|73000|kg|lb|abbr=on}} | trail bogie/pony = | locoweight = {{convert|73000|kg|lb|abbr=on}} max | fueltype = [[Diesel fuel|Diesel]] | fuelcap = {{convert|2200|L|impgal}} | lubecap = | coolantcap = | watercap = | sandcap = | powersupply = | consumption = | watercons = | primemover = [[GE Transportation Systems|GE]] [[GE FDL|7FDL-8]] | rpmrange = 385–1,050 | rpmrange low = 385 | rpmrange idle = 450 | rpmrange max = 1,050 | enginetype = 4-stroke diesel | aspiration = GE 1408 turbocharger | displacement = <!-- per cylinder --> | alternator = | generator = 10 pole GE 5GT-581C15 | tractionmotors = Four GE 5GE-761-A13 DC 4 pole | t/m amps 1 hr = 665A | t/m amps cont = 655A @ {{convert|15|km/h|mph|abbr=on}} | headendpower = | cylindercount = V8 | cylindersize = | transmission = | gear ratio = 92:19 | multipleworking = 4 maximum | trainheating = | locobrakes = 28-LAV-1 with vigilance control | dynamicpeakeffort= | trainbrakes = Westinghouse 6CDX4UC compressor/exhauster | reservoircap = {{convert|800|L|impgal}} | compressorcap = {{convert|0.033|m3/s|ft3/s|abbr=on}} | exhaustercap = {{convert|0.130|m3/s|ft3/s|abbr=on}} | safety = | coupling = [[Janney coupler|AAR knuckle type E]] | maxspeed = {{convert|100|km/h|mph|abbr=on}} | poweroutput = | poweroutput start= {{convert|875|kW|hp|abbr=on}} | poweroutput 1 hr = | poweroutput cont = {{convert|800|kW|hp|abbr=on}} | tractiveeffort = | t/e starting = {{convert|176|kN|lbf|abbr=on}} @ 25% adh. | t/e 1 hr = | t/e continuous = {{convert|141|kN|lbf|abbr=on}} @ {{convert|14|km/h|mph|abbr=on}} | factorofadhesion = | f/adh starting = 25% | f/adh 1 hr = | f/adh continuous = 20% | locobrakeforce = 70% ratio @ {{convert|345|kPa|psi|abbr=on}} | operator = South African Railways<br>Spoornet<br>[[Transnet Freight Rail]]<br>[[Passenger Rail Agency of South Africa|PRASA]] | operatorclass = Class 36-000 | powerclass = | numinclass = 124 | fleetnumbers = 36-001 to 36-124 | officialname = | nicknames = | axleloadclass = | locale = | deliverydate = 1975–1981 | firstrundate = 1975 | lastrundate = | withdrawndate = | preservedunits = | restoredate = | scrapdate = | currentowner = | disposition = | notes = }}
The '''South African Railways Class {{nowrap|36-000}}''' is a diesel-electric locomotive.
Between June 1975 and 1981, the South African Railways placed 124 Class {{nowrap|36-000}} General Electric type SG10B diesel-electric locomotives in service.<ref name="Middleton">{{Middleton-SA Loco Guide|pages=38, 43}}</ref><ref name="E&D diagram-book">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</ref>
==Manufacturer== The Class {{nowrap|36-000}} type GE SG10B diesel-electric locomotive was designed by [[General Electric]] (GE) and built for the South African Railways (SAR) in three batches by the South African General Electric-Dorman Long Locomotive Group (SA GE-DL, later Dorbyl). The first one hundred locomotives were delivered between June 1975 and September 1978, numbered in the range from 36-001 to 36-100. These were followed in 1981 by two batches of twenty and four locomotives respectively, numbered in the ranges from 36-101 to 36-120 and 36-121 to {{nowrap|36-124}} respectively.<ref name="Middleton"/><ref name="E&D diagram-book"/><ref name="Paxton-Bourne">{{Paxton-Bourne|pages=142–143}}</ref>
==Class 36 series== The Class 36 locomotive family consists of two series, the GE type SG10B Class {{nowrap|36-000}} and the [[Electro-Motive Diesel|General Motors Electro-Motive Division]] (GM-EMD) type SW1002 [[South African Class 36-200|Class {{nowrap|36-200}}]]. Both manufacturers also produced locomotives for the South African Classes 33, 34 and 35.<ref name="E&D diagram-book"/>
==Characteristics== [[File:SAR Class 36-000 36-025 BP.JPG|thumb|left|250px|[[Works plate]] on no. {{nowrap|36-025}}]] The Class {{nowrap|36-000}} is a general purpose locomotive which is equipped with two station controls for bi-directional operation. It is used mainly for yard shunting and pickup work to service industrial customers.
Their large cab windows were designed to afford the crew the maximum all-round field of vision, but in South African summer months the sun can cause much discomfort in the cab. It is not unusual to find a locomotive on yard work with the sun-side windows covered with newspaper taped onto the insides. A few Class {{nowrap|36-000}} locomotives have been observed at Vereeniging and at Port Elizabeth with home depot-applied modifications to their cab roofs in the form of sheetmetal roof extensions to the front and rear to serve as sun-shades.
==Service== When placed in service, they were initially distributed for service between Natal and the Western Transvaal, but they were later exchanged with Class 36-200 units from the Western and Eastern Cape, the Free State and Western Transvaal where they are still serving.<ref name="Middleton"/><ref name="Paxton-Bourne"/>
==Works numbers== The Class 36-000 [[Builder's plate|builder's works numbers]] and years built are shown in the table.<ref name="Middleton"/> {| class="wikitable collapsible sortable collapsed" style="margin:0.5em auto; font-size:100%;" |+'''Class 36-000, GE type SG10B''' |- !<br>Loco no. !Works<br>no. !Year<br>built |- |36-001 |40420 |1975 |- |36-002 |40421 |1975 |- |36-003 |40422 |1975 |- |36-004 |40423 |1975 |- |36-005 |40424 |1975 |- |36-006 |40425 |1975 |- |36-007 |40426 |1975 |- |36-008 |40427 |1975 |- |36-009 |40428 |1975 |- |36-010 |40429 |1975 |- |36-011 |40430 |1975 |- |36-012 |40431 |1975 |- |36-013 |40432 |1975 |- |36-014 |40433 |1975 |- |36-015 |40434 |1975 |- |36-016 |40435 |1975 |- |36-017 |40436 |1975 |- |36-018 |40437 |1975 |- |36-019 |40438 |1975 |- |36-020 |40439 |1975 |- |36-021 |40440 |1975 |- |36-022 |40441 |1975 |- |36-023 |40442 |1975 |- |36-024 |40443 |1975 |- |36-025 |40444 |1975 |- |36-026 |40445 |1975–78 |- |36-027 |40446 |1975–78 |- |36-028 |40447 |1975–78 |- |36-029 |40448 |1975–78 |- |36-030 |40449 |1975–78 |- |36-031 |40450 |1975–78 |- |36-032 |40451 |1975–78 |- |36-033 |40452 |1975–78 |- |36-034 |40453 |1975–78 |- |36-035 |40454 |1975–78 |- |36-036 |40455 |1975–78 |- |36-037 |40456 |1975–78 |- |36-038 |40457 |1975–78 |- |36-039 |40458 |1975–78 |- |36-040 |40459 |1975–78 |- |36-041 |40460 |1975–78 |- |36-042 |40461 |1975–78 |- |36-043 |40462 |1975–78 |- |36-044 |40463 |1975–78 |- |36-045 |40464 |1975–78 |- |36-046 |40465 |1975–78 |- |36-047 |40466 |1975–78 |- |36-048 |40467 |1975–78 |- |36-049 |40468 |1975–78 |- |36-050 |40469 |1975–78 |- |36-051 |40470 |1975–78 |- |36-052 |40471 |1975–78 |- |36-053 |40472 |1975–78 |- |36-054 |40473 |1975–78 |- |36-055 |40474 |1975–78 |- |36-056 |40475 |1975–78 |- |36-057 |40476 |1975–78 |- |36-058 |40477 |1975–78 |- |36-059 |40478 |1975–78 |- |36-060 |40479 |1975–78 |- |36-061 |40480 |1975–78 |- |36-062 |40481 |1975–78 |- |36-063 |40482 |1975–78 |- |36-064 |40483 |1975–78 |- |36-065 |40484 |1975–78 |- |36-066 |40485 |1975–78 |- |36-067 |40486 |1975–78 |- |36-068 |40487 |1975–78 |- |36-069 |40488 |1975–78 |- |36-070 |40489 |1975–78 |- |36-071 |40490 |1975–78 |- |36-072 |40491 |1975–78 |- |36-073 |40492 |1975–78 |- |36-074 |40493 |1975–78 |- |36-075 |40494 |1975–78 |- |36-076 |40495 |1975–78 |- |36-077 |40496 |1975–78 |- |36-078 |40497 |1975–78 |- |36-079 |40498 |1975–78 |- |36-080 |40499 |1975–78 |- |36-081 |40500 |1975–78 |- |36-082 |40501 |1975–78 |- |36-083 |40502 |1975–78 |- |36-084 |40503 |1975–78 |- |36-085 |40504 |1975–78 |- |36-086 |40505 |1975–78 |- |36-087 |40506 |1975–78 |- |36-088 |40507 |1975–78 |- |36-089 |40508 |1975–78 |- |36-090 |40509 |1975–78 |- |36-091 |40510 |1975–78 |- |36-092 |40511 |1975–78 |- |36-093 |40512 |1975–78 |- |36-094 |40513 |1975–78 |- |36-095 |40514 |1975–78 |- |36-096 |40515 |1975–78 |- |36-097 |40516 |1975–78 |- |36-098 |40517 |1975–78 |- |36-099 |40518 |1975–78 |- |36-100 |40519 |1975–78 |- |36-101 |41380 |1981 |- |36-102 |41381 |1981 |- |36-103 |41382 |1981 |- |36-104 |41383 |1981 |- |36-105 |41384 |1981 |- |36-106 |41385 |1981 |- |36-107 |41386 |1981 |- |36-108 |41387 |1981 |- |36-109 |41388 |1981 |- |36-110 |41389 |1981 |- |36-111 |41390 |1981 |- |36-112 |41391 |1981 |- |36-113 |41392 |1981 |- |36-114 |41393 |1981 |- |36-115 |41394 |1981 |- |36-116 |41395 |1981 |- |36-117 |41396 |1981 |- |36-118 |41397 |1981 |- |36-119 |41398 |1981 |- |36-120 |41399 |1981 |- |36-121 |40586 |1981 |- |36-122 |40587 |1981 |- |36-123 |40588 |1981 |- |36-124 |40589 |1981 |- |}
==Liveries== The Class 36-000 were all delivered in the SAR Gulf Red livery with signal red buffer beams, yellow side stripes on the long hood sides and a yellow V on each end. In the 1990s many of the units began to be repainted in the Spoornet orange livery with a yellow and blue chevron pattern on the buffer beams. From 2007 many were repainted in the Spoornet blue livery with outline numbers on the long hood sides. After 2008 in the [[Transnet Freight Rail]] (TFR) and [[Passenger Rail Agency of South Africa]] (PRASA) era, many were repainted in the TFR red, green and yellow livery and at least one was repainted in the PRASA blue livery.<ref name="Middleton"/><ref name="Soul of a Railway 7-9">[https://sites.google.com/site/soulorailway/home/system-7-1/south-eastwards-as-far-as-volksrust-2nd-section-wattles-to-union-junction-by-les-pivnic Soul of A Railway, System 7, Western Transvaal, based in Johannesburg, Part 9. South-Eastwards as far as Volksrust (2nd part) by Les Pivnic. Caption 4.] {{Webarchive|url=https://web.archive.org/web/20210724042106/https://sites.google.com/site/soulorailway/home/system-7-1/south-eastwards-as-far-as-volksrust-2nd-section-wattles-to-union-junction-by-les-pivnic |date=24 July 2021 }} (Accessed on 11 April 2017)</ref>
==Class 91-000== [[File:Class 91-000 91-010.JPG|thumb|left|250px|Class 91-000 no. 91-010 on Class {{nowrap|36-000}} bogies, Swartkops, 21 April 2013]] Bogies and traction motors from Class {{nowrap|36-000}} locomotives were often used under the {{track gauge|2ft|allk=on}} narrow gauge [[South African Class 91-000|Class {{nowrap|91-000}}]] GE UM6B diesel-electric locomotives when they were being transferred between the Cape and Natal narrow gauge systems. These "Bigfoot bogies" enabled them to travel under their own power on {{Track gauge|Cape|allk=on}}. Bigfoot bogies were also used under the narrow gauge locomotives whenever they had to be exchanged for maintenance purposes, sometimes running under their own power, sometimes hauled dead.<ref name="Middleton"/>
After most of the Class {{nowrap|91-000}} narrow gauge locomotives were withdrawn, one of them was allocated to the Swartkops electric locomotive depot in Port Elizabeth for use as shunting engine. It was also running on Class {{nowrap|36-000}} bogies, but with only one bogie powered.
==Illustration== The main picture shows no. 36-013 in Transnet Freight Rail livery approaching Rugby in Milnerton from Table Bay Harbour on 4 November 2013. Other liveries which were applied to Class {{nowrap|36-000}} locomotives and the sun-shade depot modification are illustrated below. <gallery mode="packed" heights="200"> File:SAR Class 36-000 36-069.JPG|No. 36-069 in Spoornet orange livery at the Bloemfontein Locomotive Depot, 29 April 2013 File:SAR Class 36-000 36-052.JPG|No. 36-052 with a sun-shade modified cab roof at Swartkops, [[Port Elizabeth]], 17 October 2009 File:SAR Class 36-000 36-001 2.JPG|No. 36-001 in Spoornet blue livery with outline numbers at Stikland, Cape Town, 23 May 2007 File:Class 36-000 36-027 b.jpg|No. 36-027 in Passenger Rail Agency of South Africa blue livery at Culemborg Yard, Cape Town, 15 October 2015 File:Class36001CPT20231209.jpg|No. 36-001 in Spoornet blue livery with outline numbers at Cape Town Station carrying Shosholoza Meyl Carriages, 09 December 2023 </gallery>
==References== {{Commons category|South African Class 36-000|position=left}} {{Reflist}} {{Locomotives of South Africa}} {{GE diesels}}
[[Category:Diesel–electric locomotives of South Africa|3470]] [[Category:Bo-Bo locomotives]] [[Category:General Electric locomotives]] [[Category:Dorbyl locomotives]] [[Category:Cape gauge railway locomotives]] [[Category:Railway locomotives introduced in 1975]] [[Category:1975 in South Africa]]