PRR S1

The S1 at the New York World's Fair of 1939
Power type	Steam
Designer	{{{designer}}}
Builder	Pennsylvania Railroad
Serial number
Model	{{{buildmodel}}}
Build date	1939
Total production	1
Configuration	6-4-4-6
AAR wheel arr.	{{{aarwheels}}}
UIC classification	{{{uicclass}}}
Gauge	4 ft 8½ in (1435 mm)
Leading wheel size	{{{leadingsize}}}
Driver size	84 in (2.13 m) diameter
Trailing wheel size	{{{trailingsize}}}
Wheelbase	{{{wheelbase}}}
Length	{{{length}}}
Width	{{{width}}}
Height	{{{height}}}
Frame size	{{{framesize}}}
Weight on drivers	{{{weightondrivers}}}
Total weight	{{{weight}}}
Locomotive and tender combined weight	{{{locotenderweight}}}
Fuel type	{{{fueltype}}}
Fuel capacity	{{{fuelcap}}}
Tender capacity	{{{tendercap}}}
Fuel consumption	{{{consumption}}}
Water consumption	{{{watercons}}}
Electric system	{{{electricsystem}}}
Collection method	{{{collectionmethod}}}
Prime mover	{{{primemover}}}
Engine type	{{{enginetype}}}
Aspiration	{{{aspiration}}}
Displacement	{{{displacement}}}
Boiler	{{{boiler}}}
Boiler pressure	300 lbf/in² (2.07 MPa)
Feedwater heater	{{{feedwaterheater}}}
Fire grate area	132 ft² (12.3 m²)
Heating surface: Tubes	{{{tubearea}}}
Heating surface: Flues	{{{fluearea}}}
Heating surface: Tubes & flues	{{{tubesandflues}}}
Heating surface: Firebox	{{{fireboxarea}}}
Heating surface: Total	{{{totalsurface}}}
Superheater type	{{{superheatertype}}}
Superheater area	{{{superheaterarea}}}
Cylinders	4
Cylinder size	22×26 in (559×660 mm)
Front cylinder size	{{{frontcylindersize}}}
Rear cylinder size	{{{rearcylindersize}}}
High-pressure cylinder size	{{{hpcylindersize}}}
Low-pressure cylinder size	{{{lpcylindersize}}}
Valve gear	Walschaert
Transmission	{{{transmission}}}
Top speed	{{{topspeed}}}
Power output	{{{poweroutput}}}
Tractive effort	{{{tractiveeffort}}}
Factor of adhesion	{{{factorofadhesion}}}
Locomotive brakes	{{{locobrakes}}}
Train brakes	{{{trainbrakes}}}
Career	Pennsylvania Railroad
Class	{{{railroadclass}}}
Number in class	1
Number	6100
Official name	{{{officialname}}}
Nicknames	{{{nicknames}}}
Locale	{{{locale}}}
Delivered	{{{deliverydate}}}
First run	{{{firstrundate}}}
Last run	{{{lastrundate}}}
Retired	1945
Restored	{{{restoredate}}}
Scrapped	{{{scrapdate}}}
Current owner	{{{currentowner}}}
Disposition	{{{disposition}}}

The Pennsylvania Railroad's class S1 comprised a single steam locomotive of 6-4-4-6 wheel arrangement in the Whyte notation, the only locomotive of such arrangement ever constructed. The S1 was a duplex locomotive: it had two pairs of cylinders, each driving two pairs of driving wheels, but its driven wheelbase was rigid, unlike similar-looking articulated locomotive designs. The locomotive was displayed at the New York World's Fair of 1939, lettered American Railroads rather than Pennsylvania Railroad. The streamlined shell was designed by Raymond Loewy. Pennsylvania Railroad S1 6-4-4-6 steam locomotive at the New York Worlds Fair, July 15, 1939. ... There have been two Worlds fairs in New York City: 1939 New York Worlds Fair ( 1939- 1940) at Flushing Meadows in Queens gave us Futurama, the Trylon, and Perisphere. ... 1939 (MCMXXXIX) was a common year starting on Sunday (link will take you to calendar). ... 1893 map The Pennsylvania Railroad (AAR reporting mark PRR) was an American railroad existing 1846–1968, after which it merged into Penn Central Transportation. ... 1939 (MCMXXXIX) was a common year starting on Sunday (link will take you to calendar). ... A selection of early 20th century locomotive types according to their Whyte notation and their comparative size The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte and came into use in the early 20th century. ... The Pennsylvania Railroads lone S1 was the only 6-4-4-6 ever constructed. ... The AAR wheel arrangement system is a method of classifying locomotive (or unit) wheel arrangements that was developed by the Association of American Railroads. ... The UIC classification is a comprehensive system for describing the wheel arrangements of locomotives. ... Rail gauge is the distance between the inner sides of the two parallel rails which make up a railway track. ... A foot (plural: feet) is a non-SI unit of distance or length, measuring around a third of a metre. ... Mid-19th century tool for converting between different standards of the inch An inch is an Imperial and U.S. customary unit of length. ... A millimetre (American spelling: millimeter, symbol mm) is an SI unit of length that is equal to one thousandth of a metre. ... On a steam locomotive, a leading wheel or leading axle is an unpowered wheel or axle located in front of the driving wheels. ... On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotives pistons (or turbine, in the case of a steam turbine locomotive). ... The trailing wheels (boxed) on a 4-6-2 locomotive. ... A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork. ... For the philosophical/theological concept of a prime mover (that is, a self-created being that is the ultimate cause or mover of all things), see cosmological argument. ... A Feedwater heater is a power plant component used to pre-heat water delivered to the boiler. ... A piston and cylinder from a steam engine A cylinder in an internal combustion engine is the space within which a piston travels. ... Categories: Rail stubs | Rail technologies ... Tractive effort is the pulling force exerted, normally by a locomotive, though the term could also be used for anything else that hauls a load. ... In railroad engineering, the factor of adhesion of a locomotive is the weight on the driving wheels divided by the starting tractive effort. ... 1893 map The Pennsylvania Railroad (AAR reporting mark PRR) was an American railroad existing 1846–1968, after which it merged into Penn Central Transportation. ... 1945 (MCMXLV) was a common year starting on Monday (link will take you to calendar). ... 1893 map The Pennsylvania Railroad (AAR reporting mark PRR) was an American railroad existing 1846–1968, after which it merged into Penn Central Transportation. ... Great Western Railway No. ... The Pennsylvania Railroads lone S1 was the only 6-4-4-6 ever constructed. ... Locomotive wheel arrangement is how the wheels of the locomotive are arranged by type, position, and connections. ... A selection of early 20th century locomotive types according to their Whyte notation and their comparative size The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte and came into use in the early 20th century. ... A duplex locomotive is a steam locomotive that divides the driving force on its wheels by using two pairs of cylinders. ... A piston and cylinder from a steam engine A cylinder in an internal combustion engine is the space within which a piston travels. ... On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotives pistons (or turbine, in the case of a steam turbine locomotive). ... An articulated locomotive is a steam locomotive with one or more engine units which can move relative to the main frame. ... There have been two Worlds fairs in New York City: 1939 New York Worlds Fair ( 1939- 1940) at Flushing Meadows in Queens gave us Futurama, the Trylon, and Perisphere. ... 1939 (MCMXXXIX) was a common year starting on Sunday (link will take you to calendar). ... A streamliner is a vehicle that incorporates streamlining to produce a shape that provides less resistance to air, and is more pleasing to the eye. ... Raymond Loewy standing on one of his designs, the Pennsylvania Railroads S1 steam locomotive. ...

The S1 was the largest express passenger locomotive ever constructed, and its cast steel locomotive bed by General Steel Castings was the largest ever made. The six-wheel leading and trailing trucks were added as the locomotive's design became too heavy for four-wheel units, but the locomotive was still overweight by a significant margin. The vast boiler was the largest the PRR ever built. The locomotive was so large, in fact, that it could not fit on most of the PRR system. In its brief service life it was restricted to the main line between Chicago, Illinois and Crestline, Ohio; it was based at the Crestline enginehouse. For display at the New York World's Fair, it took a circuitous route over the Long Island Rail Road; many obstacles had to be temporarily removed, and others passed at a slow crawl. A locomotive bed is a one-piece steel casting for a steam locomotive that consists of the locomotive frame, the cylinders and valve chests, steam pipes, and smokebox saddle, all as a single component. ... On a steam locomotive, a leading wheel or leading axle is an unpowered wheel or axle located in front of the driving wheels. ... On a steam locomotive, a trailing wheel or trailing axle is an unpowered wheel or axle located behind the driving wheels. ... Nickname: The Windy City Motto: Official website: http://egov. ... Crestline is a city located in Crawford and Richland counties in Ohio. ... The Long Island Rail Road or LIRR is a railroad that serves the length of Long Island, New York. ...

Crews liked the S1, partly because of its very smooth ride. The great mass and inertia of the locomotive soaked up the bumps and the surging often experienced with duplex locomotives.

It was hoped that the locomotive could haul 1,000 tons at 100 miles per hour, but this goal was not reached. Furthermore, the locomotive's extreme length limited its usefulness as it was incapable of negotiating curves on most lines of PRR track. No further S1s were built. PRR instead turned its attention to the T1 class of 4-4-4-4 duplex locomotives, but they also met with limited success. A T1 prototype leaves Chicagos Union Station in February 1943 with the Manhattan Limited to New York. ... A 4-4-4-4 steam locomotive, in the Whyte notation for describing locomotive wheel arrangements, has four leading wheels in a leading truck, two sets of four driving wheels, and a four-wheel trailing truck. ...

This engine is suspected to be the fastest steam engine ever built. There are no official recordings about it's top speed, but the PRR had to pay a fine for one occurance where ICC officials measured a speed of 150 miles per hour, placing it well above any other steam engine ever built. The accuracy of these measurements is unknown.

The S1 appears in the Sandman comic series, book IX. The Sandman was a comic book series written by Neil Gaiman and published by DC Comics for 75 issues from 1988 until 1996. ...

Industrial designer Raymond Loewy stands on the front of the S1. Industrial designer Raymond Loewy standing on one of his designs, the Pennsylvania Railroads S1 steam locomotive. ... Raymond Loewy standing on one of his designs, the Pennsylvania Railroads S1 steam locomotive. ...

Detail view of the driving wheels and cylinders; note the rollers upon which the wheels rested while on display. Image File history File links PRR_S1_detail. ...

See also

• PRR locomotive classification