2-4-2+2-4-2

Locomotive wheel arrangement 2-4-2+2-4-2 WheelArrangement 2-4-2+2-4-2.svg Diagram of one small leading wheel, two large driving wheels joined by a coupling rod, two small trailing wheels, two large driving wheels joined by a coupling rod, and one small leading wheel 1B1+1B1, 1’B1’+1’B1’ 121+121 24+24 2/4+2/4, 4/8 from the 1920s 1-2-1+1-2-1 1943 Brazil Leopoldina Railway Beyer, Peacock and Company Beyer, Peacock and Company 2-4-0+0-4-2 Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 2-4-2+2-4-2 is a Garratt locomotive. The wheel arrangement is effectively two 2-4-2 locomotives operating back to back, with the boiler and cab suspended between the two power units. Each power unit has a single pair of leading wheels in a leading truck, followed by two coupled pairs of driving wheels, with a single pair of trailing wheels in a trailing truck. This was the rarest of all Garratt types, with only one class of four locomotives constructed to this wheel arrangement. It most likely evolved from the 2-4-0+0-4-2 Double Porter Garratt, with the trailing wheels added on each engine unit to improve stability at speed. Manufacturers +2-4-2+2-4-2 Garratt production list – All manufacturers Gauge Railway Numbers Works no. Units Year Builder1000 1000mm onLeopoldina Railway, Brazil400-4036976-697941943 Beyer, Peacock Usage Brazil All four 2-4-2+2-4-2 locomotives were built in 1943 by Beyer, Peacock and Company for the 1000mm on Leopoldina Railway in Brazil. The locomotives were allocated engine numbers in the range from 400 to 403 on that system. References 4,2-4-2+2-4-2 Category:Whyte notation