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The South African Railways Class GMA 4-8-2+2-8-4 of 1954 is an articulated steam locomotive. Between 1954 and 1958, the South African Railways placed 120 Class GMA Garratt articulated steam locomotives with a 4-8-2+2-8-4 Double Mountain type wheel arrangement in service.
The largest steam locomotive built in Europe was a 4-8-2+2-8-4 Garratt, built by Beyer, Peacock and Company for the Soviet Railways in 1932. The most numerous Garratt class in the world was also a Double Mountain, the Class GMA and GMAM of the South African Railways, of which 120 were built between 1954 and 1958. [2] [3] [4] [5]
Twenty-nine 4-6-2+2-6-4 Garratts, constructed between 1936 and 1941 by Société Franco-Belge in Northern France, operated until the Algerian independence war caused their withdrawal in 1951. This class, designated 231-132BT, was streamlined and featured Cossart motion gear, mechanical stokers and 1.8 m (5 ft 11 in) driving wheels, the largest ...
Rhodesia imported 246 3 ft 6 in (1,067 mm) gauge Garratts of four different wheel arrangements: 2-6-2+2-6-2 s of the 13th, 14th and 14A classes; 4-6-4+4-6-4 s of the 15th class, 2-8-2+2-8-2 s of the 16th, 16A, and 18th classes; and 4-8-2+2-8-4 s of the 20th and 20A classes. Many went to Zambia Railways in 1967 when Rhodesia Railways surrendered ...
There were only two classes of 4-8-4+4-8-4 steam locomotives worldwide, all of which were constructed by Beyer, Peacock & Company, the owners of the Garratt patent. [1]The predecessor 4-8-2+2-8-4 Double Mountain was likely the optimal Garratt wheel arrangement, with the four-wheeled leading bogies and the two-wheeled trailing trucks on each engine unit ensuring stability at speed and with ...
The -5 model was certified in 1982, and a decade later, an engine utilizing the TFE731-5 power section and a TFE731-3 fan was built and designated the TFE731-4, intended to power the Cessna Citation VII aircraft. [4] The most recent version is the TFE731-50, based on the -60 used on the Falcon 900DX, which underwent its flight test program in ...
The G class could often not generate enough steam to build up speed for timekeeping and being complex and rather too light, were prone to valve and motion link failure, [16] the cylinder blocks should have been held by 1.5-inch plates as in the K A class locomotive rather 0.75 plates, and the link guidances were fragile, thin and insufficient ...
The Garrett ATF3 (US military designation F104) is a 3-spool turbofan engine developed at the California division of Garrett AiResearch. Due to mergers it is currently supported by Honeywell Aerospace .