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 Robert Stephenson & Co. work's photo of SIR No.10 (RSC No.4117) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Reference: [3] [4] [5] except where noted. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
The PT class (Passenger Tank) was a broad gauge tank locomotive designed to haul passenger trains on the railways in British India. It was one of the BESA locomotives developed by the British Engineering Standards Committee, later called the British Engineering Standards Association (BESA).
The PT class was first catalogued in the second edition of the BESA report on standard locomotive classes for the railways of British India of 1907. [6] Robert Stephenson and Company built seven PT class locomotives for the South Indian Railway (SIR) in 1936, bearing works numbers 4114 to 4120. [2] This batch differed significantly from the earlier F and FS classes (which correlate to the original BESA design with internal valve gear) by being fitted with outside cylinders. [1] In service, the locomotives were used in heavy suburban traffic, and were numbered 7 to 13. [2] Number 11 has been preserved and is on display in the National Rail Museum of India in New Delhi. [7] [8]
Three design variants of the PT class, each with different boilers, were listed in the BESA report. A larger standard boiler with a diameter of 5 ft 1 1⁄4 in (1556 mm) was developed for the PT, which was also listed as a variant in the third BESA report for the SP and SG class locomotives. [9] Alternatively, the existing boilers from the SP and SG classes could also be used, provided that the weight of the locomotive was altered in accordance with the requirements of the report. [6] The PTS variant was fitted with a Schmidt superheater - the S stands for superheated. [5] In contrast to the design recommendations of the BESA report, the SIR locomotives were fitted with external Lentz rotary valve gear. [1]
Under the Whyte notation for the classification of steam locomotives, 4-6-2 represents the wheel arrangement of four leading wheels on two axles, six powered and coupled driving wheels on three axles and two trailing wheels on one axle. The 4-6-2 locomotive became almost globally known as a Pacific type after a locomotive built by the Baldwin Locomotive Works in Philadelphia was shipped across the Pacific Ocean to New Zealand.
A Garratt locomotive is a type of articulated steam locomotive invented by British engineer Herbert William Garratt that is articulated into three parts. Its boiler, firebox, and cab are mounted on a centre frame or "bridge". The two other parts, one at each end, have a pivot to support the central frame; they consist of a steam engine unit – with driving wheels, trailing wheels, valve gear, and cylinders, and above it, fuel and/or water storage.
The BR Standard Class 8 was a class of a single 4-6-2 Pacific steam locomotive designed by Robert Riddles for use by British Railways. Only the prototype was constructed, which was christened the name Duke of Gloucester. Constructed at Crewe Works in 1954, the Duke, as it is popularly known, was a replacement for the destroyed LMS Princess Royal Class locomotive number 46202 Princess Anne, which was involved in the Harrow and Wealdstone rail crash of 1952.
The GWR 4100 Class was a class of steam locomotives in the Great Western Railway (GWR) of the United Kingdom.
The Great Western Railway 3252 or Duke Class were 4-4-0 steam locomotives with outside frames and parallel domed boilers. They were built in five batches between 1895 and 1899 for express passenger train work in Devon and Cornwall. William Dean was their designer, possibly with the collaboration of his assistant, George Jackson Churchward. Four prototype 4-4-0s, of the Armstrong Class, had already been built in 1894.
The Great Western Railway 2900 Class or Saint Class, which was built by the Great Western Railway's Swindon Works, incorporated several series of 2-cylinder passenger steam locomotives designed by George Jackson Churchward and built between 1902 and 1913 with differences in the dimensions. The majority of these were built as 4-6-0 locomotives; but thirteen examples were built as 4-4-2. They proved to be a highly successful class which established the design principles for GWR 2-cylinder classes over the next fifty years, and influenced similar classes on other British railways.
The London, Midland and Scottish Railway (LMS) Hughes Crab or Horwich Mogul is a class of mixed-traffic 2-6-0 steam locomotive built between 1926 and 1932. They are noted for their appearance with large steeply-angled cylinders to accommodate a restricted loading gauge.
The United States Army Transportation Corps S160 Class is a class of 2-8-0 Consolidation steam locomotive, designed for heavy freight work in Europe during World War II. A total of 2,120 were built and they worked on railroads across much of the world, including Africa, Asia, all of Europe and South America.
Indian Railways operates India's railway system and comes under the purview of the Ministry of Railways of Government of India. As of 2023, it maintains over 108,706 km (67,547 mi) of tracks and operates over 13,000 trains daily with a fleet of 14,800 locomotives. The railways primarily operates a fleet of electric and diesel locomotives along with a few compressed natural gas (CNG) locomotives. Steam locomotives are operated on mountain railways and on heritage trains.
Robert Stephenson and Company was a locomotive manufacturing company founded in 1823 in Forth Street, Newcastle upon Tyne in England. It was the first company in the world created specifically to build railway engines.
The South African Railways Class 16 4-6-2 of 1914 was a steam locomotive.
The South Australian Railways T class was a class of seventy-eight 1067 mm narrow-gauge 4-8-0 steam locomotives operated by the South Australian Railways. Several were sold to the Tasmanian Government Railways; some others operated on the Commonwealth Railways. Four were converted to operate on 1600 mm broad-gauge lines.
The Indian Railways WG class was a type of broad gauge 2-8-2 goods locomotive introduced in the 1950s. 2,450 of the class were built between 1950 and 1970.
The Indian locomotive class XP was a class of experimental 4-6-2 "Pacific" type steam locomotives used on 5 ft 6 in broad gauge lines in India.
The Indian locomotive class XB was a 4-6-2 passenger locomotive with a 17-long-ton axle load. It had a lot of problems. It was built with the help of British Engineering Standards Association (BESA). It was up to date as any locomotive in England. It had American 3-point suspension with compensating levers for indifferent tracks in India. The trailing wheels were mounted on a Cartazzi truck as it was for the rest of British Pacifics at the time. Goodall-type drawgear was fitted between engine and tender to facilitate free movement. They still proved to be successful as they survived till the 1980s. The modifications in India to this class was implemented in LMS Railway in UK. Copper firebox had combustion chamber extension.
The Indian locomotive class SG is a class of Indian steam locomotives used for goods trains. Its class designation, SG, stands for Standard Goods. It was, by number of locomotives built, one of the largest steam locomotive classes built in the United Kingdom. It was one of the BESA locomotives developed by the British Engineering Standards Committee, later called the British Engineering Standards Association (BESA).
The Indian locomotive class SP is a class of Indian 4-4-0 passenger steam locomotives which was built around 1905. It was one of the BESA locomotives developed by the British Engineering Standards Committee, later called the British Engineering Standards Association (BESA).
The Class AP was a broad gauge tender steam locomotive introduced around 1907 for passenger trains on the railways in British India. Its class designation, AP, stands for Atlantic Passenger Locomotive, where Atlantic refers to the wheel arrangement of the same name. It was one of the BESA locomotives developed by the British Engineering Standards Committee, later called the British Engineering Standards Association (BESA).
The Class HP was a 4-6-0 broad gauge passenger steam locomotive introduced in 1906 on the railways of British India. It was one of the BESA locomotives developed by the British Engineering Standards Committee, later called the British Engineering Standards Association (BESA).
The Class HG is a 2-8-0 goods steam locomotive, which was one of seven standard classes of broad gauge steam locomotives designed by the British Engineering Standards Association (BESA) for use in the British Raj in the mid-1900s.
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