Maumelle Ordnance Works Locomotive 1
Encyclopedia
Maumelle Ordnance Works Locomotive 1 is a gasoline powered, mechanically driven, two axle railway locomotive which was built in 1942 by Vulcan Iron Works
Vulcan Iron Works
Since Vulcan was the Roman god of fire and smithery, the name was an obvious choice for an iron foundry or mechanical engineering works in the nineteenth century, both in England, the birthplace of the Industrial Revolution, and in the United States.-England:...

 for the War Department's
United States Department of War
The United States Department of War, also called the War Department , was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army...

 Maumelle Ordnance Works.

History

The Maumelle Ordnance Works were built by the War Department in 1941 to produce the explosives picric acid
Picric acid
Picric acid is the chemical compound formally called 2,4,6-trinitrophenol . This yellow crystalline solid is one of the most acidic phenols. Like other highly nitrated compounds such as TNT, picric acid is an explosive...

, ammonium picrate, and ammonium nitrate. The plant began production in 1942 and the locomotive was purchased to move freight cars around the facility, which was spread over 7000 acres (2,832.8 ha) to minimize the risk of incidents spreading from one production unit to others. The plant stopped production in August 1945 and was decontaminated and shut down by November. The land passed through several hands and eventually became the planned community of Maumelle, Arkansas
Maumelle, Arkansas
Maumelle is a city in Pulaski County, Arkansas, United States and a suburb of Little Rock. Founded by Jess Odom with federal assistance from the Urban Growth and New Community Development Act, it is a master-planned community....

.

The Arkansas nomination document says that locomotive #1 was then transferred to the Army, renumbered 8223, and sent to the Newport Army Air Field. The airfield, however, had been renamed "Marine Corps Air Facility Newport" in 1944 and turned over to the City of Newport
Newport, Arkansas
Newport is a city in Jackson County, Arkansas, northeast of Little Rock, on the White River. In 1900, 2,866 people lived in Newport, Arkansas; in 1910, 3,557. The population was 7,811 at the 2000 census. The city is the county seat of Jackson County....

 at the end of the war.

Wherever it spent the period after the war, in the early fifties the government sold the locomotive to the Augusta Railroad, a 1.65 miles (2.7 km) line that connected Augusta, Arkansas
Augusta, Arkansas
Augusta is a city in Woodruff County, Arkansas, United States. The population was 2,693 at the 2000 census. The city is the county seat of Woodruff County.-Geography:Augusta is located at ....

, near Broadway and 1st Street, to the Missouri Pacific at 6th Street in New Augusta. Parts of the railroad right of way are still obvious on the Google aerial view. The little gasoline locomotive replaced a 1924 Alco 2-6-0
2-6-0
Under the Whyte notation for the classification of steam locomotives, 2-6-0 represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, six powered and coupled driving wheels on three axles, and no trailing wheels. This arrangement is commonly called a Mogul...

 steam locomotive that had been condemned. During the 1950s, the railroad gradually died, as its traffic shifted to trucks. The railroad went through an abandonment proceeding in 1958 and was purchased by Glenn Taggart and Bing Miller. Subsequently, Tommy Taggart bought Miller's interest. He kept the locomotive until he donated it to the Fort Smith Trolley Museum
Fort Smith Trolley Museum
The Fort Smith Trolley Museum is a railroad museum in Fort Smith, Arkansas.Located at 100 South 4th Street, the museum collection includes four streetcars which operated in municipal service in Fort Smith, an open streetcar, as well as a Frisco steam locomotive.The museum also operates a heritage...

 in June, 1988

Design

Locomotive #1 is an unusual combination. Virtually all internal combustion locomotives are diesel-electric
Diesel-electric
Diesel-electric transmission or diesel-electric powertrain is used by a number of vehicle and ship types for providing locomotion.A diesel-electric transmission system includes a diesel engine connected to an electrical generator, creating electricity that powers electric traction motors...

s, powered by a diesel prime mover driving a generator which in turn drives one or more electric traction motors; apart from some diesel-mechanical and diesel-hydraulic locomotives. All of the major manufacturers had discarded the use of gasoline engines by the middle 1930s in favor of diesel, primarily on the grounds of fuel economy. Vulcan continued to produce a very limited number of both while it also continued to produce steam locomotives. In early 1942 it is likely that war needs made it easier to get a gasoline engine that a diesel because a gasoline engine uses much less material.

Electric drive is almost universal because a railroad locomotive is a difficult environment for a mechanical gearbox, as the loads vary widely from second to second as the slack action
Slack action
In railroading, slack action is the amount of free movement of one car before it transmits its motion to an adjoining coupled car. This free movement results from the fact that in railroad practice cars are loosely coupled, and the coupling is often combined with a shock-absorbing device, a "draft...

 runs in and out. Only on very small locomotives, pulling a limited number of cars, generally on level track, have there been any successful gearbox locomotive drives. In the case of Locomotive 1, the four speed gearbox drives a countershaft under the cab which is connected with side rods to the two driving wheels. The choice of mechanical drive may also have been driven by war availability – a generator and traction motor take hundreds of pounds of copper, which was scarce.

The nomination document quotes a Vulcan ad in the 1947 Locomotive Cyclopedia, ""All Vulcan diesel and gasoline geared locomotives are equipped with a distinctive four-speed, constant-mesh, spur-geared transmission which permits easy gear changes at relatively high speeds. Gears and shafts are heat-treated nickel-chromium steel mounted on anti-friction bearings and operating in an oil bath. Extra-heavy cross-equalized semi-elliptic springs and Vulcan 3-point suspension assure easy riding on rough track and minimize derailments."

It was added to the National Register of Historic Places
National Register of Historic Places
The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

in 2006 as Maumelle Ordnance Works Locomotive #1.
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