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High-speed rail (HSR) is a type of rail transport network utilising trains that run significantly faster than those of traditional rail, using an integrated system of specialised rolling stock and dedicated tracks. While there is no single definition or standard that applies worldwide, lines built to handle speeds of at least 250 km/h (155 mph ...
Fast passenger steam locomotive; the magazine Popular Mechanics cites 1941 a speed of 133.4 mph (214.7 km/h) PRR S2: Pennsylvania Railroad: 6200 Baldwin Locomotive Works: 1944 Steam turbine direct-drive 6-8-6: 470 tonnes (518 short tons) 314 kilonewtons (70,500 lbf) 5,145 kilowatts (6,900 hp) Most powerful steam turbine locomotive ever built ...
LNER Class A4 4468 Mallard is officially the fastest steam locomotive, reaching 126 mph (203 km/h) on 3 July 1938. LNER Class A3 4472 Flying Scotsman was the first steam locomotive to officially reach 100 mph (160 km/h), on 30 November 1934. 41 018 climbing the Schiefe Ebene with 01 1066 as pusher locomotive (video 34.4 MB)
The following is a list of high-speed trains that have been, are, or will be in commercial service.. A high-speed train is generally defined as one which operates at or over 125 mph (200 km/h) in regular passenger service, with a high level of service, and often comprising multi-powered elements.
While in British Railways days regular steam-hauled rail services in the UK were officially limited to a 90 mph (140 km/h) 'line speed', before the war, the A4s had to run significantly above 90 mph (140 km/h) just to keep schedule on trains such as the Silver Jubilee and The Coronation, [2] with the engines reaching 100 mph on many occasions.
The trains would run faster than those on other high-speed lines in the U.S., including Amtrak's Acela between Boston and Washington, D.C., which can top 150 mph (241 kph).
Authorities in the United States maintain various definitions of high-speed rail. The United States Department of Transportation, an entity in the executive branch, defines it as rail service with top speeds ranging from 110 to 150 miles per hour (180 to 240 km/h) or higher, [10] while the United States Code, which is the official codification of Federal statutes, defines it as rail service ...
The LNER Class A4 is a class of streamlined 4-6-2 steam locomotive designed by Nigel Gresley for the London and North Eastern Railway in 1935. Their streamlined design gave them high-speed capability as well as making them instantly recognisable, and one of the class, 4468 Mallard, holds the record as the world's fastest steam locomotive.