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The Lionel Corporation used the 2-6-4 wheel arrangement in many of its model steam locomotives, including the 2037 used in the infamous pastel-coloured Girls' Train. [9] Their 2-6-4 model was based on the Pennsylvania Railroad’s K4 class pacific , even though this was a 4-6-2 rather than a 2-6-4.
The 2-6-6-4 was a fairly late development, a product of the superpower steam concept, introduced by the Lima Locomotive Works, which encouraged the use of large fireboxes supported by four-wheel trailing trucks. Such a firebox could sustain a rate of steam generation to meet any demands of the locomotive's cylinders, even at high speed.
Class MWGX: 4-6-2+2-6-4 Garratt; Indian Railway Standards post war designs Class YL: 2-6-2 mixed traffic locomotive with 8-ton axle load (264 built 1953–1957) Class YG: 2-8-2 goods locomotive with 10 1 ⁄ 2-ton axle load (1074 built 1949–1972) Class YP: 4-6-2 passenger locomotive with 10 1 ⁄ 2-ton axle load (871 built 1949–1970)
As of November 2024, the AIRAWAT supercomputer is the fastest supercomputer in India, having been ranked 136th fastest in the world in the TOP500 supercomputer list. [2] AIRAWAT has been installed at the Centre for Development of Advanced Computing (C-DAC) in Pune. [3]
The Indian locomotive class WM was a class of 2-6-4T tank locomotives used on 5 ft 6 in (1,676 mm) broad gauge lines in India from 1942. [ 2 ] [ 4 ] [ 5 ] A total of 70 of them were delivered new, and another four were converted from existing class WV engines.
The Indian locomotive class WP is a class of 4-6-2 "Pacific" steam locomotives used in India. It was introduced after World War II for passenger duties, marking the change from 'X' to 'W' as the classification code for broad gauge locomotives. The class was designed specifically for low-calorie, high-ash Indian coal, by Railway Board designers ...
The wheel arrangements introduced in the 1920s for these locomotives were the 4-6-4s, 2-8-4s, 4-8-4s and 2-10-4s; and in the 1930s, the 2-6-6-4s. The term "superpower" was later often applied to all locomotives with 4-wheel trailing truck arrangements, though many did not have boosters and almost all steam of any wheel arrangement built after ...
The CDC 6600, released in 1964, is generally considered the first supercomputer. [2] [3] However, some earlier computers were considered supercomputers for their day such as the 1954 IBM NORC in the 1950s, [4] and in the early 1960s, the UNIVAC LARC (1960), [5] the IBM 7030 Stretch (1962), [6] and the Manchester Atlas (1962), all [specify] of ...