EAR 59 class

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East African Railways 59 class
5902 prior to being named Ruwenzori Mountains
Type and origin Power type Steam Builder Beyer, Peacock and Company Order number 11164, 11168 Serial number 7632–7658, 7700–7706 Build date 1955 Total produced 34
Specifications Configuration: ​  • Whyte 4-8-2+2-8-4 Garratt  • UIC (2′D1′)(1′D2′) h4 Gauge 1,000 mm (3 ft 3+3⁄8 in) Driver dia. 54 in (1,372 mm) Length 102 ft 11 in (31.37 m) Adhesive weight 157 long tons (160 t) Loco weight 248 long tons (252 t) Firebox: ​  • Grate area 72 sq ft (6.69 m2) Boiler 225 psi (1.55 MPa) Heating surface 3,560 sq ft (331 m2) Superheater: ​  • Heating area 745 sq ft (69.2 m2) Cylinder size 20.5 in × 28 in (521 mm × 711 mm)
Performance figures Maximum speed 43 mph (69 km/h) Tractive effort 83,350 lbf (370.76 kN)
Career Operators East African Railways Class 59 Numbers 5901–5934 Withdrawn 1973–1980 Preserved 5918, 5930

The EAR 59 class is a class of oil-fired 1,000 mm (3 ft 3+3⁄8 in) gauge 4-8-2+2-8-4 Garratt-type articulated steam locomotives. The 34 members of the class were built by Beyer, Peacock and Company in Manchester, England, for the East African Railways (EAR). They entered service in 1955–56, and were the largest, heaviest and most powerful steam locomotives to operate on any metre gauge railway in the world.^[1]

The locomotives had a 4-8-2+2-8-4 wheel arrangement, weighed 252 tons, and delivered a tractive effort of 83,350 lbf (370.76 kN). They were designed to haul 1,200-ton trains on 1.5% gradients and were the mainstay of freight services on the 330-mile run from Mombasa to Nairobi until the late 1970s.

During normal service, the locomotives were attended to by two regular crews on a 'caboose' basis, one working and one resting in a van with sleeping accommodation, changing over at eight-hour intervals.

The engines, many with Sikh drivers, were kept very clean and well maintained. The most famous of the 59 class was 5918 Mount Gelai with a devoted crew known as the 'Magnificent Foursome' who worked on it for 16 years. The two drivers, Kirpal Singh and Walter Pinto, simply went on holiday when the locomotive went into Nairobi works for scheduled maintenance.

According to railway photographer Colin Garratt (in 1975), "the overall condition of Mount Gelai is possibly unrivalled anywhere in the world today. Her cab interior is more akin to a Sikh temple than a locomotive footplate for its boiler face abounds in polished brasswork, embellished with mirrors, clocks, silver buckets and a linoleum floor".^[2]

Withdrawals started in 1973, with the last locomotive (Mount Gelai) removed from service in April 1980 when it was driven by its long time driver, Kirpal Singh directly to the Nairobi Railway Museum; Mr. Singh retired from railway service the same day. Together with Mount Gelai, Mount Shengena was also saved from scrap and both are now preserved by the Nairobi Railway Museum.

In August 2001, Mount Gelai was transferred from the Nairobi Railway Museum to the Kenya Railways' main works for an overhaul to working order. Between November 2001 and September 2005 the locomotive made three round trips to Mombasa hauling excursion trains. It was also used on at least one occasion to haul a freight train to Nairobi due to a shortage of diesel locomotives. However, it has not operated outside of Nairobi since 2005 and is unlikely to do so again due to operational restrictions and the partial regauging of Kenya's meter gauge (1,000 mm (3 ft 3+3⁄8 in)) rail lines to standard gauge (1,435 mm (4 ft 8+1⁄2 in)).

The 2018 Thomas & Friends special Big World! Big Adventures! introduced the character Kwaku, who is based on the EAR 59 class.^{[citation needed]}

The locomotives were named after mountains in East Africa:

• Nairobi Railway Museum unofficial page
• East African Railways and Harbours
• Steam in Kenya
• Railway Gazette Archived 2017-06-13 at the Wayback Machine