John Bull (locomotive)
Encyclopedia
John Bull is a British-built railroad steam locomotive
Steam locomotive
A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

 that operated in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. It was operated for the first time on September 15, 1831, and it became the oldest operable steam locomotive in the world when the Smithsonian Institution
Smithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...

 operated it in 1981. Built by Robert Stephenson and Company
Robert Stephenson and Company
Robert Stephenson and Company was a locomotive manufacturing company founded in 1823. It was the first company set up specifically to build railway engines.- Foundation and early success :...

, the John Bull was initially purchased by and operated for the Camden and Amboy Railroad, the first railroad in New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

, which gave John Bull the number 1 and its first name, "Stevens". The C&A used the locomotive heavily from 1833 until 1866, when it was removed from active service and placed in storage.

After the C&A's assets were acquired by the Pennsylvania Railroad
Pennsylvania Railroad
The Pennsylvania Railroad was an American Class I railroad, founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania....

 (PRR) in 1871, the PRR refurbished and operated the locomotive a few times for public displays: it was steamed up for the Centennial Exposition
Centennial Exposition
The Centennial International Exhibition of 1876, the first official World's Fair in the United States, was held in Philadelphia, Pennsylvania, from May 10 to November 10, 1876, to celebrate the 100th anniversary of the signing of the Declaration of Independence in Philadelphia. It was officially...

 in 1876 and again for the National Railway Appliance Exhibition in 1883. In 1884 the locomotive was purchased by the Smithsonian Institution
Smithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...

 as the museum's first major industrial exhibit.

In 1939 the employees at the PRR's Altoona
Altoona, Pennsylvania
-History:A major railroad town, Altoona was founded by the Pennsylvania Railroad in 1849 as the site for a shop complex. Altoona was incorporated as a borough on February 6, 1854, and as a city under legislation approved on April 3, 1867, and February 8, 1868...

, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

, workshops built an operable replica of the locomotive for further exhibition duties, as the Smithsonian desired to keep the original locomotive in a more controlled environment. After being on static display for the next 42 years, the Smithsonian commemorated the locomotive's 150th birthday in 1981 by firing it up, making it the world's oldest surviving operable steam locomotive. Today, the original John Bull is on static display once more in the Smithsonian's National Museum of American History
National Museum of American History
The National Museum of American History: Kenneth E. Behring Center collects, preserves and displays the heritage of the United States in the areas of social, political, cultural, scientific and military history. Among the items on display are the original Star-Spangled Banner and Archie Bunker's...

 in Washington, D.C.
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

 The replica John Bull is preserved at the Railroad Museum of Pennsylvania
Railroad Museum of Pennsylvania
The Railroad Museum of Pennsylvania is a railroad museum in Strasburg, Lancaster County, Pennsylvania.The museum is located on the east side of Strasburg along Pennsylvania Route 741...

.

Construction and initial use

The John Bull was built in Newcastle
Newcastle upon Tyne
Newcastle upon Tyne is a city and metropolitan borough of Tyne and Wear, in North East England. Historically a part of Northumberland, it is situated on the north bank of the River Tyne...

, England, by Robert Stephenson and Company
Robert Stephenson and Company
Robert Stephenson and Company was a locomotive manufacturing company founded in 1823. It was the first company set up specifically to build railway engines.- Foundation and early success :...

 for the Camden and Amboy Railroad (C&A), the first railroad built in New Jersey. It was dismantled and then shipped across the Atlantic Ocean
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 in crates aboard the Allegheny. C&A engineer Isaac Dripps reconstructed the locomotive to the best of his ability (the shipment did not include any drawings or instructions to assemble the locomotive) and ran it for the first time in September 1831. On November 12, 1831, Robert Stevens (then president of the C&A) repaid some political debts by inviting several members of the New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

 legislature and some local dignitaries, including Napoleon's nephew Prince Murat
Prince Achille Murat
Achille Charles Louis Napoléon, Crown Prince of Naples, Hereditary Prince of Berg, 2nd Prince Murat was the eldest son of the King of Naples during the First French Empire and later in life mayor of Tallahassee, Florida in the United States.-Early life:Murat was born in the Hôtel de Brienne in...

, for rides behind the newly delivered locomotive over a short test track. The prince's wife, Catherine Willis Gray
Catherine Willis Gray
Catherine Daingerfield Willis Gray Murat was born near Fredericksburg, Virginia and died in Tallahassee, Florida, United States.-Family:...

, made a point of hurrying onto the train so she could be declared the first woman to ride a steam-powered train in America.

Until the railroad construction was completed, the locomotive was placed in storage; horse-drawn cars served the construction efforts until 1833. The C&A applied both numbers and names to their first locomotives, giving this engine the number 1 and officially naming it Stevens (after the C&A's first president, Robert L. Stevens). However, through regular use of the engine, crews began calling it the old John Bull, a reference to the cartoon personification of England, John Bull
John Bull
John Bull is a national personification of Britain in general and England in particular, especially in political cartoons and similar graphic works. He is usually depicted as a stout, middle-aged man, often wearing a Union Flag waistcoat.-Origin:...

. Eventually the informal name was shortened to John Bull and this name was much more widely used until the Stevens name fell out of use in favor of John Bull.

In September 1836 the John Bull and two coaches were shipped by canal to Harrisburg
Harrisburg, Pennsylvania
Harrisburg is the capital of Pennsylvania. As of the 2010 census, the city had a population of 49,528, making it the ninth largest city in Pennsylvania...

, and became the first locomotive to operate there.

Mechanical modifications and early exhibitions

Stephenson built the locomotive originally as an 0-4-0
0-4-0
Under the Whyte notation for the classification of steam locomotives, 0-4-0 represents one of the simplest possible types, that with two axles and four coupled wheels, all of which are driven...

 (an 0-4-0 is the Whyte notation
Whyte notation
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 encouraged by an editorial in American Engineer and Railroad Journal...

 for a steam locomotive with two powered axles
Driving wheel
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons...

 and no unpowered leading
Leading wheel
The leading wheel or leading axle of a steam locomotive is an unpowered wheel or axle located in front of the driving wheels. The axle or axles of the leading wheels are normally located in a truck...

 or trailing axles
Trailing wheel
On a steam locomotive, a trailing wheel or trailing axle is generally an unpowered wheel or axle located behind the driving wheels. The axle of the trailing wheels was usually located on a trailing truck...

). The locomotive's power was transmitted to the driving axles through pistons that were mounted under the boiler between the two front wheels and in front of the front axle. These inside cylinders' main rods were connected to a rear crank axle with a connecting rod
Connecting rod
In a reciprocating piston engine, the connecting rod or conrod connects the piston to the crank or crankshaft. Together with the crank, they form a simple mechanism that converts linear motion into rotating motion....

 between the two axles to power the front axle.

Due to poorer quality track than was the norm in its native England, the locomotive had much trouble with derailment; the C&A's engineers added a leading truck (an assembly consisting of an unpowered axle with smaller diameter wheels that was connected to the frame and pushed in front of the locomotive) to help guide the engine into curves. The leading truck's mechanism necessitated the removal of the coupling rod between the two main axles, leaving only the rear axle powered. Effectively, the John Bull became a 2-2-2-0 (a locomotive with one leading axle, followed by separate unpowered and powered main axles, and no trailing axle). Later, the C&A also added a pilot
Pilot (locomotive)
In railroading, the pilot is the device mounted at the front of a locomotive to deflect obstacles from the track that might otherwise derail the train. In some countries it is also called cowcatcher or cattle catcher....

 ("cowcatcher") to the lead truck. The cowcatcher is an angled assembly designed to deflect animals and debris off of the railroad track in front of the locomotive. To protect the locomotive's crew from the weather, the C&A also added walls and a roof (a cab
Cab (locomotive)
The cab, crew compartment or driver's compartment of a locomotive is the part of the locomotive housing the train driver or engineer, the fireman or driver's assistant , and the controls necessary for the locomotive's operation....

) to the rear of the locomotive where the controls were located. C&A workshop crews also added safety features such as a bell and headlight.

After several years serving as a switching engine
Switcher
A switcher or shunter is a small railroad locomotive intended not for moving trains over long distances but rather for assembling trains ready for a road locomotive to take over, disassembling a train that has been...

 (a locomotive used for moving railroad cars around within a railroad yard
Rail yard
A rail yard, or railroad yard, is a complex series of railroad tracks for storing, sorting, or loading/unloading, railroad cars and/or locomotives. Railroad yards have many tracks in parallel for keeping rolling stock stored off the mainline, so that they do not obstruct the flow of traffic....

; also known as a shunter) and stationary boiler
Boiler (steam generator)
A boiler or steam generator is a device used to create steam by applying heat energy to water. Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure but, at pressures above this, it is more...

, the John Bull was retired in 1866 and stored in Bordentown, New Jersey
Bordentown, New Jersey
Bordentown City is in Burlington County, New Jersey, United States. As of the 2010 United States Census, the city population was 3,924. Bordentown is located at the confluence of the Delaware River, Blacks Creek and Crosswicks Creek...

. Toward the end of its life in revenue service, the locomotive worked as a pump
Pump
A pump is a device used to move fluids, such as liquids, gases or slurries.A pump displaces a volume by physical or mechanical action. Pumps fall into three major groups: direct lift, displacement, and gravity pumps...

 engine and as the power for a sawmill.

The C&A was soon absorbed into the United New Jersey Railroad and Canal Company
United New Jersey Railroad and Canal Company
The United New Jersey Railroad and Canal Company was part of the Pennsylvania Railroad system in New Jersey, including their main line to New York City...

 (1869) which itself was merged into the Pennsylvania Railroad
Pennsylvania Railroad
The Pennsylvania Railroad was an American Class I railroad, founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania....

 (PRR) in 1871. The PRR saw the potential publicity to be gained by exhibiting such an old engine, showing it at the 1876 Centennial Exposition
Centennial Exposition
The Centennial International Exhibition of 1876, the first official World's Fair in the United States, was held in Philadelphia, Pennsylvania, from May 10 to November 10, 1876, to celebrate the 100th anniversary of the signing of the Declaration of Independence in Philadelphia. It was officially...

 in Philadelphia; PRR workshop staff then "back-dated" the engine (by replacing some original parts with parts that "looked" old or by removing them entirely). The exhaust stack
Chimney
A chimney is a structure for venting hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the...

 was replaced with a straight tube of metal and the cab walls and roof were removed. The PRR then exhibited the engine in 1883 at the National Railway Appliance Exhibition in Chicago, Illinois
Chicago
Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

. In 1885, the Smithsonian Institution
Smithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...

 purchased the John Bull from the PRR as the Institution's first large engine purchase.

Smithsonian Institution and locomotive restoration

At the exhibition in 1883, the Pennsylvania Railroad ended up resolving two problems at once. In the Smithsonian Institution, the railroad was able to find a home for the historic locomotive as well as a suitable new employer for a young civil engineer named J. Elfreth Watkins
J. Elfreth Watkins
John Elfreth Watkins was a civil engineer working for American railroads of the 19th century. He played a key role in the preservation of the John Bull steam locomotive and its subsequent public displays by the Smithsonian Institution....

. Watkins had been involved in an accident on the railroad in New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

 a few years before the exhibition. In the accident, he had lost a leg so he was no longer suited to the physical demands of railroad work (although the railroad did employ him as a clerk for a while after his accident). The PRR employed his engineering experience as an expert curator for the Smithsonian's new Arts and Industries Building which was opened in 1880. The locomotive's first public exhibition at the Smithsonian occurred on December 22, 1884, where it was displayed in the East Hall of the Arts and Industries building.

The locomotive remained on display in this location for nearly 80 years, but it was transported for display outside the museum on certain rare occasions. The most significant display in this time occurred in 1893 when the locomotive traveled to Chicago for the World's Columbian Exposition
World's Columbian Exposition
The World's Columbian Exposition was a World's Fair held in Chicago in 1893 to celebrate the 400th anniversary of Christopher Columbus's arrival in the New World in 1492. Chicago bested New York City; Washington, D.C.; and St...

. The Pennsylvania Railroad, like many other railroads of the time, put on grand displays of their progress; the PRR arranged for the locomotive and a couple of coaches to be delivered to the railroad's Jersey City
Jersey City, New Jersey
Jersey City is the seat of Hudson County, New Jersey, United States.Part of the New York metropolitan area, Jersey City lies between the Hudson River and Upper New York Bay across from Lower Manhattan and the Hackensack River and Newark Bay...

, New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

, workshops where it would undergo a partial restoration to operating condition. The PRR was planning an event worthy of the locomotive's significance to American railroad history—the railroad actually planned to operate the locomotive for the entire distance between New Jersey and Chicago.

The restoration was supervised by the PRR's chief mechanical officer, Theodore N. Ely. Ely was confident enough in its 50-mile (80.5 km) test run to Perth Amboy
Perth Amboy, New Jersey
Perth Amboy is a city in Middlesex County, New Jersey, United States. The City of Perth Amboy is part of the New York metropolitan area. As of the 2010 United States Census, the city population was 50,814. Perth Amboy is known as the "City by the Bay", referring to Raritan Bay.-Name:The Lenape...

, New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

 (which took two hours and fifteen minutes), that the governors
Governor (United States)
In the United States, the title governor refers to the chief executive of each state or insular territory, not directly subordinate to the federal authorities, but the political and ceremonial head of the state.-Role and powers:...

 of all the states that the locomotive was to pass through and the then President of the United States
President of the United States
The President of the United States of America is the head of state and head of government of the United States. The president leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces....

, Grover Cleveland
Grover Cleveland
Stephen Grover Cleveland was the 22nd and 24th president of the United States. Cleveland is the only president to serve two non-consecutive terms and therefore is the only individual to be counted twice in the numbering of the presidents...

, were invited to ride behind the engine on its first leg toward Chicago. The John Bull was to pull a few passenger cars in a train that would carry dignitaries and representatives of the press. The train traveled to Philadelphia
Philadelphia, Pennsylvania
Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States,...

, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

, in the charge of one locomotive crew. From Philadelphia, local engineers (train drivers) were employed to ride on the locomotive's footplate as pilots
Maritime pilot
A pilot is a mariner who guides ships through dangerous or congested waters, such as harbours or river mouths. With the exception of the Panama Canal, the pilot is only an advisor, as the captain remains in legal, overriding command of the vessel....

 to advise the operators for the trip over the local engineers' territories for the rest of the journey to Chicago. Traveling at 25 to 30 mph (40.2 to 48.3 km/h), the train departed from the Pennsylvania Railroad's Jersey City station at 10:16am on April 17 and reached Chicago on April 22. The locomotive operated during the exhibition giving rides to the exhibition's attendees, and then the train left Chicago on December 6 for the return trip to Washington. The locomotive arrived back in Washington on December 13.

In 1927 the John Bull again traveled outside the museum. The Baltimore and Ohio Railroad
Baltimore and Ohio Railroad
The Baltimore and Ohio Railroad was one of the oldest railroads in the United States and the first common carrier railroad. It came into being mostly because the city of Baltimore wanted to compete with the newly constructed Erie Canal and another canal being proposed by Pennsylvania, which...

 was celebrating its centenary that year in its Fair of the Iron Horse in Baltimore, Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

. Since the locomotive's original tender (fuel and water car) had deteriorated beyond repair and was dismantled in 1910, the PRR built a replica of the tender at its Altoona
Altoona, Pennsylvania
-History:A major railroad town, Altoona was founded by the Pennsylvania Railroad in 1849 as the site for a shop complex. Altoona was incorporated as a borough on February 6, 1854, and as a city under legislation approved on April 3, 1867, and February 8, 1868...

, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

, workshops. The locomotive was also refurbished in Altoona for operation during the fair. This fair was the last steam up for the locomotive until 1980.

(Mostly) static display

After the locomotive returned to the Smithsonian, it remained on static display. The museum in 1930 commissioned the Altoona Works
Altoona Works
Altoona Works is a large railroad industrial complex in Altoona, Pennsylvania. It was built by the Pennsylvania Railroad to supply the railroad with locomotives, railroad cars and related equipment. For many years it was the largest railroad shop complex in the world.-History:In 1849, PRR...

 to build a second replica of the locomotive's tender for display with the locomotive in the museum. This time, however, the replica tender re-used some of the fittings that the museum had retained when the original tender was dismantled twenty years earlier.

The Smithsonian recognized the locomotive's age in 1931. But, since the museum didn't have the funds to refurbish the locomotive for full operation again, it was decided to run the locomotive in place (with the driving wheels lifted off the rails using jacks) with compressed air. The museum borrowed an 1836 coach from the Pennsylvania Railroad to display on the track behind the newly rebuilt tender, and the locomotive's 100th birthday was officially celebrated on November 12, 1931. The locomotive's semi-operation was broadcast over the CBS radio network
CBS
CBS Broadcasting Inc. is a major US commercial broadcasting television network, which started as a radio network. The name is derived from the initials of the network's former name, Columbia Broadcasting System. The network is sometimes referred to as the "Eye Network" in reference to the shape of...

 with Stanley Bell narrating the ceremonies for the radio audience.

The PRR again borrowed the locomotive in 1933–1934 for the Century of Progress
Century of Progress
A Century of Progress International Exposition was the name of a World's Fair held in Chicago from 1933 to 1934 to celebrate the city's centennial. The theme of the fair was technological innovation...

 exhibition in Chicago. Unlike its earlier jaunt to Chicago, for this trip, the railroad hauled and displayed it as a static exhibit. While this exhibit was progressing, the Altoona Works were busy again building a replica; this time the replica was an operable copy of the locomotive itself. The replica was then operated in 1940 at the New York World's Fair
1939 New York World's Fair
The 1939–40 New York World's Fair, which covered the of Flushing Meadows-Corona Park , was the second largest American world's fair of all time, exceeded only by St. Louis's Louisiana Purchase Exposition of 1904. Many countries around the world participated in it, and over 44 million people...

, while the original locomotive and rebuilt tender returned to the Smithsonian.

The original locomotive was displayed outside the museum one more time in 1939 at the New York World's Fair, but the museum's curators decided that the locomotive was becoming too fragile for repeated outside exhibits. It was then placed in somewhat permanent display back in the East Hall where it remained for the next 25 years. The locomotive was moved to its current home, the National Museum of American History
National Museum of American History
The National Museum of American History: Kenneth E. Behring Center collects, preserves and displays the heritage of the United States in the areas of social, political, cultural, scientific and military history. Among the items on display are the original Star-Spangled Banner and Archie Bunker's...

 (then called the National Museum of History and Technology), in 1964.

Operating again after 150 years

The John Bull had remained on static display for another 15 years, but the locomotive's significance as one of the oldest locomotives in existence, or its use on the first railroad in New Jersey, was not very plainly noted in the display's literature. As 1981 and the locomotive's 150th birthday approached, the Smithsonian started discussions on how best to commemorate the locomotive's age and significance. There was very little question that special publications and exhibits would be prepared, but museum officials were left with the thought that the exhibit could still be so much more than that.

Many superficial inspections were performed on the locomotive in 1980 and it was found to be in relatively sound mechanical condition. There wasn't a significant amount of deterioration noted in these early inspections, and when the wheels were jacked off the rails, as they had been 50 years earlier, the axles were found to be freely operable. One morning in January 1980, before the museum opened to the public, museum officials used compressed air to power the cylinders and move the wheels through the connecting rods for the first time since its last semi-operation. After the compressed air blew some dirt and debris out of the locomotive's exhaust stack, it was soon running smoothly.

The running gear seemed to be in good order, but it was still unknown if the boiler could still handle the pressure of steam and a live fire again. The museum asked the Hartford Steam Boiler Inspection and Insurance Company
Hartford Steam Boiler Inspection and Insurance Company
The Hartford Steam Boiler Inspection and Insurance Company founded in 1866 and headquartered in Hartford, Connecticut, U.S., is a global specialty insurer and reinsurer...

 to inspect the locomotive's boiler for operation. The inspections were conducted after hours at the museum (from 6:30 p.m. to 4:00 a.m.) over three days and included electromagnet
Electromagnet
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current is turned off...

ic, ultrasonic
Ultrasound
Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Ultrasound is thus not separated from "normal" sound based on differences in physical properties, only the fact that humans cannot hear it. Although this limit varies from person to person, it is...

, and radiographic
Radiography
Radiography is the use of X-rays to view a non-uniformly composed material such as the human body. By using the physical properties of the ray an image can be developed which displays areas of different density and composition....

 tests. The tests did reveal a few flaws, but it was projected that the engine could operate at a reduced boiler pressure of 50 psi (340 kPa or 3.5 kgf
Kilogram-force
A kilogram-force , or kilopond , is a gravitational metric unit of force. It is equal to the magnitude of the force exerted by one kilogram of mass in a gravitational field...

/cm²); as delivered to the Camden & Amboy, the boiler was rated for 70 psi (482.6 kPa) or 4.9 kgf/cm². The Smithsonian's staff, after a few further hydrostatic tests, were confident that the locomotive could again operate under its own power. The items that needed repair were repaired, and on Oct. 14, 1980, the locomotive was successfully field-tested on the Warrenton Branch Line in Fauquier County between Calverton and Casanova, Va. The site was selected because at the time, only one freight train per week used the branch line. On September 15, 1981, the locomotive operated under steam on a few miles of branch line near the Potomac River
Potomac River
The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States. The river is approximately long, with a drainage area of about 14,700 square miles...

 within Washington, D.C.
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

  With this exhibition, the locomotive became the oldest operable steam locomotive (and oldest self-propelled vehicle
Vehicle
A vehicle is a device that is designed or used to transport people or cargo. Most often vehicles are manufactured, such as bicycles, cars, motorcycles, trains, ships, boats, and aircraft....

) in the world.

The original John Bull is housed on static display at the National Museum of American History
National Museum of American History
The National Museum of American History: Kenneth E. Behring Center collects, preserves and displays the heritage of the United States in the areas of social, political, cultural, scientific and military history. Among the items on display are the original Star-Spangled Banner and Archie Bunker's...

 in Washington, D.C. The replica of the John Bull, built in 1939, is owned and preserved by the Railroad Museum of Pennsylvania
Railroad Museum of Pennsylvania
The Railroad Museum of Pennsylvania is a railroad museum in Strasburg, Lancaster County, Pennsylvania.The museum is located on the east side of Strasburg along Pennsylvania Route 741...

 and is, as of 2009, their only operational piece of equipment.

Timeline

  • June 18, 1831: The John Bull is constructed by Stephenson and Company in England.
  • July 14, 1831: The John Bull departs Liverpool
    Liverpool
    Liverpool is a city and metropolitan borough of Merseyside, England, along the eastern side of the Mersey Estuary. It was founded as a borough in 1207 and was granted city status in 1880...

     aboard the ship Allegheny bound for Philadelphia, Pennsylvania
    Philadelphia, Pennsylvania
    Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States,...

    .
  • September 4, 1831: The John Bull arrives in Philadelphia.
  • September 15, 1831: The John Bull makes its first runs in New Jersey under its own power.
  • November 12, 1831: Robert Stevens hosts a group of New Jersey politicians on a series of trial runs pulled by the John Bull.
  • 1833: The John Bull is one of a few locomotives operating on the newly completed Camden and Amboy Railroad.
  • 1866: The John Bull is retired from regular service.
  • 1876: The John Bull is displayed at the United States Centennial Exposition
    Centennial Exposition
    The Centennial International Exhibition of 1876, the first official World's Fair in the United States, was held in Philadelphia, Pennsylvania, from May 10 to November 10, 1876, to celebrate the 100th anniversary of the signing of the Declaration of Independence in Philadelphia. It was officially...

     in Philadelphia.
  • 1883: The Pennsylvania Railroad displays John Bull at the National Railway Appliance Exhibition in Chicago, Illinois
    Chicago
    Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

    .
  • 1884: The Smithsonian Institution acquires the John Bull from the Pennsylvania Railroad
  • 1893: The John Bull operates at the World's Columbian Exposition
    World's Columbian Exposition
    The World's Columbian Exposition was a World's Fair held in Chicago in 1893 to celebrate the 400th anniversary of Christopher Columbus's arrival in the New World in 1492. Chicago bested New York City; Washington, D.C.; and St...

     in Chicago.
  • 1910: The original tender, now deteriorated beyond repair, is dismantled by Smithsonian staff. Usable fittings from the tender are placed in storage.
  • 1927: The Baltimore and Ohio Railroad
    Baltimore and Ohio Railroad
    The Baltimore and Ohio Railroad was one of the oldest railroads in the United States and the first common carrier railroad. It came into being mostly because the city of Baltimore wanted to compete with the newly constructed Erie Canal and another canal being proposed by Pennsylvania, which...

     borrows the John Bull to operate at the Fair of the Iron Horse in Baltimore, Maryland.
  • 1930: A replica tender is commissioned by the Smithsonian and built by the Pennsylvania Railroad using the fittings previously salvaged from the original tender; the new tender is displayed with the locomotive at the museum.
  • November 12, 1931: The Smithsonian celebrates the locomotive's 100th "birthday," using compressed air to operate the stationary engine (stabilized on jacks) within the museum's exhibit hall.
  • 1933–1934: The Pennsylvania Railroad borrows the John Bull to display it at the Century of Progress
    Century of Progress
    A Century of Progress International Exposition was the name of a World's Fair held in Chicago from 1933 to 1934 to celebrate the city's centennial. The theme of the fair was technological innovation...

     Exhibition in Chicago.
  • 1939: The original John Bull is displayed in the opening of the New York World's Fair
    1939 New York World's Fair
    The 1939–40 New York World's Fair, which covered the of Flushing Meadows-Corona Park , was the second largest American world's fair of all time, exceeded only by St. Louis's Louisiana Purchase Exposition of 1904. Many countries around the world participated in it, and over 44 million people...

  • 1940: A replica of the John Bull, built by engineers at the Pennsylvania Railroad's Juniata Shops in Altoona, Pennsylvania
    Altoona, Pennsylvania
    -History:A major railroad town, Altoona was founded by the Pennsylvania Railroad in 1849 as the site for a shop complex. Altoona was incorporated as a borough on February 6, 1854, and as a city under legislation approved on April 3, 1867, and February 8, 1868...

    , is displayed at the New York World's Fair, and the original is returned to the Smithsonian.
  • Oct. 14, 1980: The John Bull is restored to operating condition, and tested on the Warrenton Branch Line in Fauquier County, Virginia.
  • September 15, 1981: The John Bull operates in Washington, D.C.
    Washington, D.C.
    Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

    , on the 150th anniversary of its first use, becoming the oldest operable steam locomotive (and oldest self-propelled vehicle) in the world.
  • 1985: The John Bull is carried aboard an airplane for an exhibition in Dallas, Texas
    Dallas, Texas
    Dallas is the third-largest city in Texas and the ninth-largest in the United States. The Dallas-Fort Worth Metroplex is the largest metropolitan area in the South and fourth-largest metropolitan area in the United States...

    , making it the oldest locomotive in the world to travel by air.
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