0-4-0+0-4-0

Locomotive wheel arrangement 0-4-0+0-4-0 WheelArrangement 0-4-0+0-4-0.svg Diagram of four driving wheels in two pairs, each pair joined by coupling rods K1 works photograph.jpg Tasmanian Government Railways K class works photograph B+B 020+020 22+22 2/2+2/2, 4/4 from the 1920s 0-2-0+0-2-0 1909 Australia TGR K class Tasmanian Government Railways Beyer, Peacock & Company Beyer, Peacock & Company 2-4-0+0-4-2 Total engine mass as adhesive weight Instability at speed Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 0-4-0+0-4-0 is an articulated locomotive of the Garratt type. The wheel arrangement is effectively two 0-4-0 locomotives operating back-to-back or face-to-face, with the boiler and cab suspended between the two power units. Each power unit has no leading wheels, four powered and coupled driving wheels on two axles and no trailing wheels. A similar arrangement exists for Mallet, Meyer and Fairlie locomotives, but is referred to as 0-4-4-0. Overview The first Garratt locomotive, K1, one of two 2ft gauge Tasmanian Government Railways K class locomotives built in 1909, has this wheel arrangement and has been restored to operating condition at the Welsh Highland Railway. This arrangement proved one of the less popular Garratt types, since most Garratt locomotives were larger and more powerful, requiring more pairs of driving wheels to operate within the normal axle load limits, and because leading wheels gave more stability and better tracking to allow higher speeds. In total, 34 Garratts of this type were constructed, seven by Garratt patent holder Beyer, Peacock & Company, mostly for industrial use, and 27 by other builders. The largest user of the type was the C.F. Vicinaux du Mayumbe in the Belgian Congo, with twenty locomotives built to a 600mm gauge by St Leonard in Belgium. +0-4-0+0-4-0 Garratt production list – All manufacturershttp://www.trendelfindelmundo.com.ar/ferrocarril_ingenieroPorta.php The End of the World Train - Tierra del Fuego National Park - Engineer Porta 2012-09-20 https://web.archive.org/web/20120301030645/http://www.trendelfindelmundo.com.ar/ferrocarril_ingenieroPorta.php 2012-03-01 dead http://www.trendelfindelmundo.com.ar/ferrocarril_ingenieroZubieta.php The End of the World Train - Tierra del Fuego National Park - Engineer Zubieta 2012-09-20 https://web.archive.org/web/20120229185220/http://www.trendelfindelmundo.com.ar/ferrocarril_ingenieroZubieta.php 2012-02-29 dead Gauge Railway Class Works no. Units Year Builder0500 500 mm 1 onSouthern Fuegian Railway, Argentina"Engineer Porta"11994Argentina0500 500 mm 1 onSouthern Fuegian Railway, Argentina"Engineer Zubieta"12006Girdlestone Rail, South Africa0600 600 mm 1 onC.F.Vicinaux du Mayumbe, ZaïreE209611927St Leonard, Belgium0600 600 mm 1 onC.F.Vicinaux du Mayumbe, ZaïreA1708-170921911St Leonard, Belgium0600 600 mm 1 onC.F.Vicinaux du Mayumbe, ZaïreA1715-171621911St Leonard, Belgium0600 600 mm 1 onC.F.Vicinaux du Mayumbe, ZaïreB1899-190021919St Leonard, Belgium0600 600 mm 1 onC.F.Vicinaux du Mayumbe, ZaïreB1953-195641921St Leonard, Belgium0600 600 mm 1 onC.F.Vicinaux du Mayumbe, Zaïre2021-202551924St Leonard, Belgium0600 600 mm 1 onC.F.Vicinaux du Mayumbe, ZaïreC2056-205941926St Leonard, Belgium0610 2ft 1 onDarjeeling Himalayan, IndiaD540711910Beyer, Peacock0610 2ft 1 onTasmanian Government RailwaysK5292-529321909Beyer, Peacock & Company0750 750 mm 1 onMines du Zaccar, Algeria175211936Du Haine Saint-Pierre0750 750 mm 1 onMines du Zaccar, Algeria178311937Du Haine Saint-Pierre0750 750 mm 1 onMines du Zaccar, Algeria178111912St. Leonard, Belgium1000 1000 mm 1 onPorto Feliz Sugar Co, Brazil209111927St Leonard, Belgium1000 1000 mm 1 onPiracicaba Sugar Co, Brazil210811927St Leonard, Belgium1435 4ft8.5in 1 onVivian & Sons617211924Beyer, Peacock & Company1435 4ft8.5in 1 onSneyd Colliery, Burslem672911931Beyer, Peacock1435 4ft8.5in 1 onGuest, Keen & Baldwins677911934Beyer, Peacock & Company1435 4ft8.5in 1 onBaddesley Colliery, Atherstone684111937Beyer, Peacock & Company Use Argentina thumb|The Engineer Porta of the FCAF The 500mm gauge Southern Fuegian Railway (F.C.A.F.) in Argentina procured a new 0-4-0+0-4-0 Garratt in 1994. Based on Livio Dante Porta's work, it included larger cross section tubing, insulation of the boiler and an improved front end. This vastly improved the economy of this modern steam engine and more than doubled train length. Accordingly, a second Garratt for this railway was built to similar specifications, but with superheating added, in the workshops of Girdlestone Rail in Port Shepstone, South Africa. It was shipped to Argentina in 2006 and entered service in October of that year. These locomotives had their engine units arranged face-to-face. Australia thumb|Tasmanian Government Railways Garratt K1 on the Welsh Highland Railway The Tasmanian Government Railways K class was the first class of Garratt locomotive ever produced. They differed from most later Garratts in two respects. They were compound locomotives, with two high-pressure cylinders on the rear engine unit and two larger low-pressure cylinders on the front engine unit. Their engine units were arranged with their cylinders facing each other, rather than back-to-back as on most other Garratts.Turner Jim Australian Steam Locomotives 1896-1958 1997 Kangaroo Press Kenthurst 086417778X 50Oberg Leon Locomotives of Australia 1850s-2010 2010 Rosenberg Publishing Dural 9781921719011 143/144K1 The World's First Garratt (Accessed on 27 October 2016)Steam Locomotives of the Tasmanian Government Railways and its Constituents. Australian Railway History, issue 917, March 2014, p. 19. United Kingdom In addition to K1 at the Welsh Highland Railway, the standard gauge industrial Beyer-Garratt William Francis, built in 1937, is preserved at the Bressingham Steam Museum.Beyer Peacock & Company Works No 6841 William Francis 0-4-0+0-4-0T Preserved British Steam Locomotives https://preservedbritishsteamlocomotives.com/beyer-peacock-company-works-no-6841-william-francis-0-4-00-4-0t/ 1 August 2025 This locomotive had its engine units arranged back-to-back in the usual Garratt fashion. References left 4,0-4-0