Instruct: Given a question, retrieve passages that answer the question.
Query: What was the fastest steam locomotive?
The F7s are major contenders for the fastest steam locomotives ever built, as they ran at over daily. One run in January 1941 recorded by a reporter for "Trains" magazine saw achieved twice—in the midst of a heavy snowstorm. Baron Gérard Vuillet, a French railroading expert, once recorded a run between Chicago and Milwaukee where the locomotive reached and sustained an average for . However, the British locomotive LNER Class A4 4468 "Mallard" is officially accepted to be the world's fastest, with a run recorded at but authenticated at 126 mph in 1938.
Weighing against the cost of, and inertia against, replacing the large investment that railroads had in existing steam power were the dramatic increases in flexibility and efficiency with diesel. The fastest and most powerful steam locomotives were faster and more powerful than diesels; however, their range of efficient operation was severely limited. Diesels pro-rate their fuel usage to the length of trains, which a steam engine cannot do. Multiple-unit diesel power is scalable to power requirements with one locomotive crew; steam power is not. A high speed Hudson steam locomotive is good for only one situation, high speeds on level grades. The diesel locomotive can be operated by a single person, with no need of a fireman to run the boiler (two person cab crews may be required for other reasons). Also, diesels use much less fuel and no manpower when idling, something locomotives often do. Diesels can be parked running for days unattended, whereas steam engines must be constantly tended to if not completely shut down. Bringing a steam engine boiler up to operating temperature is often regarded as both an art and science, requiring much training and experience. A diesel is much simpler to start and shut down.
London and North Eastern Railway locomotive numbered 4468 "Mallard" is a Class A4 4-6-2 Pacific steam locomotive built at Doncaster Works, England in 1938. It is historically significant as the holder of the world speed record for steam locomotives at .
The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte, and came into use in the early twentieth century following a December 1900 editorial in "American Engineer and Railroad Journal". The notation counts the number of leading wheels, then the number of driving wheels, and finally the number of trailing wheels, groups of numbers being separated by dashes. Other classification schemes, like UIC classification and the French, Turkish and Swiss systems for steam locomotives, count axles rather than wheels.
The prototype train of seven coaches and two locomotives was completed in August 1972 and by the autumn was running trials on the main line. The following year, high-speed testing was being undertaken on the "racing stretch" of the East Coast Main Line between York and Darlington. The set had been reduced to two power cars and five trailers, and there seems to have been a concerted attempt to see how fast the train would go. On 6 June 1973 131 mph was reached, and this maximum was raised as the days passed. By 12 June a world diesel speed record of was achieved. The drivers believed that 150 mph was possible but the BRB issued instructions for the high speed tests to cease. It was believed at the time that this was because the BRB wanted to promote the APT as the future of high speed rail travel in the UK.
All but one of the railway's distinctive locomotives were built by Beyer, Peacock and Company of Manchester between 1873 and 1926, with 16 steam locomotives in total. As of October 2018 there are nominally four locomotives in traffic: № 8 "Fenella", № 12 "Hutchinson", № 13 "Kissack" and № 15 "Caledonia". In addition, № 11 "Maitland" is undergoing a long-term rebuild, whilst № 4 "Loch" and № 10 "G. H. Wood" are both undergoing overhaul. The Isle of Man Railway Museum is home to № 6 "Peveril" of 1875 and № 16 "Mannin" of 1926, with other locomotives at various locations. Only № 2 "Derby" has been lost, with only the frames of № 7 "Tynwald" in existence, privately owned off-island. The railway also possesses two diesel locomotives: № 17 "Viking" which was withdrawn in 2010 and the as-yet unnamed № 21, a diesel electric locomotive delivered in December 2013. A number of smaller shunting locomotives and people carriers for departmental use also exist.
Thomas is a steam engine and has a number 1 painted on his side. All of the locomotives in The Railway Series were based on prototypical engines; Thomas has origins in the E2 Class designed by Lawson Billinton in 1913. Thomas first appeared in 1946 in the second book in the series, "Thomas the Tank Engine", and was the focus of the four short stories contained within. Thomas's best friends are Percy and Toby.
The diesel-electric locomotive assaulted the primacy of the coal/oil fired steam locomotive from every angle. First, it had a much higher duty cycle than any steam locomotive could match. Famously, the use of steam locomotives to attempt the achievement of the schedules for the crack passenger trains between Chicago and the West Coast, required no less than nine (9) complete changes of engine and tender between Chicago and Los Angeles/San Francisco. With no steam engine/tender set travelling more than 250 miles. Diesels would complete these long distance runs with the same motive power units. And the diesel units would only receive fuel and water at limited operating stops. So the number of in-cab crews necessary to operate any schedule would be dramatically reduced by the introduction of diesels
For locomotives where a high starting torque and low speed were required, the conventional direct drive approach was inadequate. "Geared" steam locomotives, such as the Shay, the Climax and the Heisler, were developed to meet this need on industrial, logging, mine and quarry railways. The common feature of these three types was the provision of reduction gearing and a drive shaft between the crankshaft and the driving axles. This arrangement allowed the engine to run at a much higher speed than the driving wheels compared to the conventional design, where the ratio is 1:1.
In 1769 the first steam-powered automobile capable of human transportation was built by Nicolas-Joseph Cugnot.
Baldwin built many 4-4-0 "American" type locomotives (the locomotive that built America). Surviving examples of which include the 1872 "Countess of Dufferin" and 1875's Virginia and Truckee Railroad No.22 "Inyo", but it was perhaps best known for the 2-8-2 "Mikado" and 2-8-0 "Consolidation" types. It was also well known for the unique cab-forward 4-8-8-2 articulateds built for the Southern Pacific Company and massive 2-10-2 for the Atchison, Topeka and Santa Fe Railway. Baldwin also produced their most powerful steam engines in history, the 2-8-8-4 "Yellowstone" for the Duluth, Missabe and Iron Range Railway. The Yellowstone could put down over of Tractive force. They routinely hauled 180 car trains weighing over . The Yellowstones were so good that the DM&IR refused to part with them; they hauled ore trains well into the diesel era, and the last one retired in 1963. Three have been preserved. One of Baldwin's last new and improved locomotive designs were the 4-8-4 "Northern" locomotives. Baldwin's last domestic steam locomotives were 2-6-6-2s built for the Chesapeake and Ohio Railway in 1949. Baldwin 60000, the company's 1926 demonstration steam locomotive, is on display at the Franklin Institute in Philadelphia. On a separate note, the restored and running 2-6-2 steam locomotive at Fort Edmonton Park was built by Baldwin in 1919.
These were not the first locomotives to use geared transmission. Richard Trevithick's Coalbookdale Locomotive used a large gear instead of side rods to link the crankshaft to the driving axles, with a net 1:1 gear ratio. The early "Grasshopper" (1832), "Crab" (1837) and "Mud Digger" (1842) locomotives built for the Baltimore and Ohio Railroad used gear ratios on the order of 2:1 so that each turn of the crankshaft caused about two turns of the driving axles. This allowed use of relatively small driving wheels without sacrificing speed.
Under the Whyte notation for the classification of steam locomotives, 2-2-2 represents the wheel arrangement of two leading wheels on one axle, two powered driving wheels on one axle, and two trailing wheels on one axle. The wheel arrangement both provided more stability and enabled a larger firebox than the earlier 0-2-2 and 2-2-0 types. This configuration was introduced in 1834 on Robert Stephenson's 'Patentee locomotive' but it was later popularly named Jenny Lind, after the Jenny Lind locomotive which in turn was named after the popular singer. They were also sometimes described as Singles, although this name could be used to describe any kind of locomotive with a single pair of driving wheels.
1782: The first steam-driven train is invented by Richard Trevithick in Boston, Plymouth Commonwealth. A race is held in a commonwealth bordering the New Nile starting in Springfield and ending in Cairo, with one of the hairy elephant-pulled trains they threaten to replace.
Dieselisation took place largely because of the tremendous reduction in operating costs it allowed. Steam locomotives require large pools of labour to clean, load, maintain and run. They also require extensive service, coaling and watering facilities. This was their biggest inferior measure as compared to the diesel locomotive in the number of ton-miles or passenger traffic miles either could run. Diesels could and did have a significantly higher initial price per unit-horsepower delivered. However, their far greater range between fueling stops, the absence of water stops, and the much higher unit availability between inspection repair and maintenance stops, were far better than steam. Diesels simply required significantly less time and labour to operate and maintain. Diesel power was also more scalable to power requirements, owing to the control systems that allowed multiple units to be controlled by one operator. "Double header" steam power required a crew for each locomotive. Initially, diesel locomotives were less powerful than the typical steam locomotives. Between the late 1930s and the late 1950s the power available with diesel locomotive engines roughly doubled, although the most powerful steam locomotives ever built still exceeded the power of the most powerful diesel locomotives from the late Twentieth Century.
What was needed was a big improvement in fuel efficiency. While the boilers for steam engines on land were allowed to run at high pressures, the Board of Trade (under the authority of the Merchant Shipping Act 1854) would not allow ships to exceed . Compound engines were a known source of improved efficiency – but generally not used at sea due to the low pressures available. "Carnatic" (1863), a P&O ship, had a compound engine - and achieved better efficiency than other ships of the time. Her boilers ran at but relied on a substantial amount of superheat.
Built in 1927 by the Baldwin Locomotive Works, 3751 was Baldwin's and the Santa Fe railway's first 4-8-4. It had a Santa Fe 5-chime freight whistle mounted on it. Tests showed that 3751 was 20% more efficient and powerful than the Santa Fe's 3700 class 4-8-2 steamers, which at the time were Santa Fe's most advanced steam locomotives. In 1936, the engine was converted to burn oil. Two years later, the locomotive was given a larger tender able to hold 20,000 gallons of water and 7,107 gallons of fuel oil. 3751 was also present at the grand opening of Union Station in Los Angeles on May 7, 1939 pulling the Scout, one of Santa Fe's crack passenger trains as it arrived from Chicago. It was the first steam locomotive to bring a passenger train into LAUPT. In 1941, along with other 4-8-4s, 3751 received major upgrades including: 80-inch drive wheels, a new frame, roller bearings all around, and more. That same year, it achieved its highest recorded speed at 103 mph. It continued to be a very reliable working locomotive until 1953, when it pulled the last regularly scheduled steam powered passenger train on the Santa Fe to run between Los Angeles and San Diego on August 25, this was its last run in revenue service. After that, it was stored at the Redondo Junction, California roundhouse in Los Angeles for four years before it was officially retired from the roster by the railroad in 1957, and in 1958 it was placed on display in San Bernardino.
Chesapeake & Ohio 614 is a 4-8-4 steam locomotive built by the Lima Locomotive Works in Lima, Ohio, in June 1948 for the Chesapeake and Ohio Railway (C&O) as a member of the J3a class. As one of the last commercially built steam locomotives in the United States, the locomotive was built with the primary purpose of hauling long, heavy, high speed express passenger trains for the Chesapeake & Ohio Railway such as the "George Washington" and the "Fast Flying Virginian". Retired from active service in the late 1950s, the 614 was preserved and placed on display at the B&O Railroad Museum in Baltimore, Maryland. In 1979, the locomotive was restored to operating condition and was used for extensive mainline excursion service from the 1970s until the late 1990s. Today the locomotive is on temporary display at the C&O Railway Heritage Center in Clifton Forge, Virginia awaiting a potential return to steam.
SS "Great Eastern" was an iron sailing steamship designed by Isambard Kingdom Brunel, and built by J. Scott Russell & Co. at Millwall Iron Works on the River Thames, London. She was by far the largest ship ever built at the time of her 1858 launch, and had the capacity to carry 4,000 passengers from England to Australia without refuelling. Her length of was only surpassed in 1899 by the 17,274-gross-ton RMS "Oceanic", her gross tonnage of 18,915 was only surpassed in 1901 by the 21,035-gross-ton RMS "Celtic", and her 4,000-passenger capacity was surpassed in 1913 by the 4,935-passenger SS "Imperator". The ship's five funnels were rare. These were later reduced to four.
A steamship, often referred to as a steamer, is a type of steam powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines that typically move (turn) propellers or paddlewheels. The first steamships came into practical usage during the early 1800s; however, there were exceptions that came before. Steamships usually use the prefix designations of "PS" for "paddle steamer" or "SS" for "screw steamer" (using a propeller or screw). As paddle steamers became less common, "SS" is assumed by many to stand for "steam ship". Ships powered by internal combustion engines use a prefix such as "MV" for "motor vessel", so it is not correct to use "SS" for most modern vessels.
Diesel locomotives offer significant operating advantages over steam locomotives. They can safely be operated by one person, making them ideal for switching/shunting duties in yards (although for safety reasons many main-line diesel locomotives continue to have 2-man crews: an engineer and a conductor/switchman) and the operating environment is much more attractive, being quieter, fully weatherproof and without the dirt and heat that is an inevitable part of operating a steam locomotive. Diesel locomotives can be worked in multiple with a single crew controlling multiple locomotives in a single train — something not practical with steam locomotives. This brought greater efficiencies to the operator, as individual locomotives could be relatively low-powered for use as a single unit on light duties but marshaled together to provide the power needed on a heavy train. With steam traction a single very powerful and expensive locomotive was required for the heaviest trains or the operator resorted to double heading with multiple locomotives and crews, a method which was also expensive and brought with it its own operating difficulties.
The locomotives were cross balanced and ran on drivers. They had an oil-fired grate and a rated boiler pressure of , which gave the boiler a high capacity in relation to the cylinders. Designed for a light-weight train of five to six passenger cars, they were considered as probably the fastest steam locomotives ever built in the United States, possibly capable of matching any locomotive in the world. The fleet covered their schedule in 400 minutes with several stops en route, at an average speed of more than on some sections and often arriving with one or two minutes to spare.
They hauled the fastest scheduled steam-powered trains in the world. Running at 100 mph or greater was required to keep these schedules; the class A locomotives were designed to cruise at over and be able to achieve . A run with a dynamometer car behind the locomotive was made on May 15, 1935 by locomotive No. 2 between Milwaukee and New Lisbon, Wisconsin. Over a stretch the speed of was recorded. This was the fastest authenticated speed reached by a steam locomotive at the time, making No. 2 the rail speed record holder for steam and the first steam locomotive to top . There are reports, without evidence or accurate records, that these locomotives could exceed . Such speeds would have placed the class A in contention with the LNER Class A4 and German BR 05 for the crown of fastest steam locomotive until that time, but no records have been unearthed. The successor Milwaukee Road class F7 was even more powerful, with a claimed top speed of .
On 11 May 1936, high-speed steam locomotive 05 002, hauling three express carriages and a test van, reached 200.4 km/h at the 52 km mark between Vietznitz and Paulinenaue, a world record for steam locomotives.
On 15 May 1933, Germany’s first high-speed diesel train, DRG 877 "Fliegender Hamburger" ("Flying Hamburger"), was introduced on the line. With a travel time of two hours and 18 minutes the "Fliegender Hamburger" had an average speed of for the , between Hamburg Hauptbahnhof and Berlin Lehrter station. The "Fliegender Hamburger" was the world's fastest scheduled rail service. The majority of travellers still travelled in ordinary steam-hauled express trains with a travel time of three and a half to four hours. With the outbreak of World War II, military priorities meant that high-speed projects were abandoned.
If running is achieved, "Tornado" would also become the second fastest operational steam locomotive in the world. Regular steam operation was last seen in Britain in 1967 with the Merchant Navy class Pacific locomotives operating on the Waterloo to Bournemouth route. The fastest operational steam locomotive in the world is Deutsche Reichsbahn 18.201, allowed to run in Germany up to .