IMAGE
RAIL: FREIGHT
1873 
Baltimore & Ohio #173 “Camelback”
4-6-0 Camelback
TYPE
Baltimore & Ohio
BUILDER
The engine is designed for heavy freight use. It features an unusual center-cab "camel" design, with the cab place atop the boiler due to the size of the firebox at the rear.
IMAGE
RAIL: FREIGHT
1944 
Atchison, Topeka, Santa Fe Railway #5011 Locomotive
2-10-4 S Texas
TYPE
Baldwin Locomotive Works
BUILDER
Built big for Santa Fe, this monster was equipped with 74 inch high driving wheels, largest on any 2-10-4. This steam engine was part of the old Pecos Division of Santa Fe.
IMAGE
RAIL: FREIGHT
1943 
Arkansas & Missouri Railroad #22
Locomotive
TYPE
American Locomotive Company
BUILDER
Arkansas & Missouri Railroad #22 for a time was the oldest operating diesel locomotive in regular mainline service. After being sold a number of times, it finally ended up with the Arkansas & Missouri, where for many years it served as a power unit for the railroad's excursion trains.
IMAGE
RAIL: FREIGHT
1926 
Alton & Southern Railroad #12
0-8-0 Rare 3-cylinder design
TYPE
American Locomotive Company
BUILDER
#12 served the Alton & Southern Railroad for just 22 years, operating 622,626 miles for the industrial switching/transfer line in Illinois. The locomotive's rare 3-cylinder design saved on fuel. Unfortunately, maintenance and associated costs for the center cylinder outweighed the fuel economies. Only four North American 3-cylinder steam engines exist today. #12 weighs 242,000 pounds and has three 22" x 28" cylinders.
RAIL: FREIGHT
1896 
Georgia Railroad #724 Locomotive
"Fantail" Steam Locomotive
TYPE
Baldwin Locomotive Works
BUILDER
Last coal-burner steam engine to operate in the St. Louis area. Primary function was to operate as a switch engine for different companies in the area. It was called a "fantail" because of its sloping tender's allowing for greater visibility for the crew. Various parts are colored coded for informational purposes.
IMAGE
RAIL: FREIGHT
1926 
St. Louis and San Francisco Railway #1522 Locomotive (Frisco)
4-8-2 Mountain
TYPE
Baldwin Locomotive Works
BUILDER
St. Louis-San Francisco Railway #1522 famous steam locomotive (Frisco). Locomotive has booster engine on trailing truck. The engine was used in freight/passenger service. Retired in 1955, it was donated to the Museum. #1522 led 2 lives, restored in 1988 to operating condition and returned to hauling passengers on Midwest excursions from 1988 to 2002.
IMAGE
RAIL: FREIGHT
1929 
New York Central #2933 “Mohawk Locomotive”
Steam Locomotive
TYPE
America Locomotive Company
BUILDER
This engine is one of only two large Mohawk type NYC steam engines to have survived being scrapped. It is the only locomotive donated for preservation by the NYC. It weighs 185 tons and has 67" drivers.
IMAGE
RAIL: FREIGHT
1889 
Reading “Black Diamond” Last One Surviving
2-2-2T Inspection Engine
TYPE
Baldwin Locomotive Works
BUILDER
The "Black Diamond" is the sole surviving steam inspection engine. It was used by the President of Philadelphia & Reading Coal and Iron Co. and other railroad executives on short business or inspection trips. The "Black Diamond" is 22'9" in length and weighs 26,300 pounds. It is believed the engine could attain a maximum speed of 60 mph.
IMAGE
RAIL: FREIGHT
1966 
Union Pacific #900081 Rotary Snow Plow
Rotary Snow Plow
TYPE
Union Pacific
BUILDER
This is the largest and heaviest rotary snowplow built. It is 56'2" long, 17' high and weighs 376,400 pounds. (That's the same as 62 African Elephants!) Its 12' diameter cutting wheel could throw snow far to either side of the track as it was pushed forward at four to six mph. Its hydraulically operated wings can open to permit a 14' wide cutting swath of snow. The cutting wheel can revolve up to 150 rpm. It is not self propelled and must be pushed by up to four locomotives.
A steam generator heats the carburetor, prevents the fuel and water pipes from freezing and thaws out the cutting wheel if it gets stuck. The plow engineer controls both the plow and the trailing locomotives.  The circular windows in the front of this plow revolve to keep them clear from snow. Hear more here.
IMAGE
RAIL: FREIGHT
1939 
General Motors #103 “The Diesel That Did It”
D Model FTA B-B
TYPE
General Motors Electro-Motive Division
BUILDER
General Motors Electro-Motive Division (EMD) locomotive #103 (FT 103) was a demonstrator with 1350 horsepower. First successful diesel electric locomotive. This locomotive proved the efficiency of diesel electric power, ending the steam locomotive era. National Engineering Landmark declared 1982.