Real Train Database

Real-world prototypes that inspired HO scale models

Every HO scale model is based on a real-world prototype — the actual locomotive or railcar that inspired its design. Understanding the prototype helps modelers choose accurate paint schemes, match equipment to the correct era, and build realistic consists. An EMD SD40-2 in BNSF heritage paint, for instance, tells a different story than one in original Burlington Northern green.

The TrainDex prototype database covers hundreds of diesel locomotive families (EMD, GE, Alco, and others), freight car types (boxcars, covered hoppers, tank cars, gondolas, and well cars), and passenger equipment (Budd streamliners, Pullman heavyweights, Amtrak Superliners). Each entry includes builder history, production dates, technical specifications, operating railroads, and a cross-reference to every HO scale model available from tracked manufacturers.

Total Prototypes
243
Diesel Locomotives
188
Freight Cars
40
Passenger Cars
15

188 results in Diesel Locomotive

Technical Specifications

DesignationEMD SW1200
BuilderEMD
TypeSwitcher
Years Built1954-1966
Total Built1151
Horsepower1200

History

The EMD SW1200 entered production in January 1954, immediately following the conclusion of SW9 production in late 1953, and represented the third generation of 1,200-horsepower switchers produced by …

Technical Notes

The SW1200 was powered by the EMD 567C prime mover, a 12-cylinder version of EMD's well-regarded 567 engine family, producing 1,200 horsepower and driving the …

Model Manufacturers

Models by: Athearn · Rapido Trains · Walthers

Available as HO Models (3)

Rapido Trains
$200
Walthers
Athearn

Technical Specifications

DesignationEMD SW1500
BuilderEMD
TypeSwitcher
Years Built1966-1974
Total Built808
Horsepower1500

History

The EMD SW1500 was a diesel-electric switcher locomotive produced by General Motors' Electro-Motive Division between 1966 and 1974. It entered the EMD product line as a successor to the SW1200, offer…

Technical Notes

The SW1500 was powered by the EMD 645E prime mover, a member of the widely used 645 series of two-stroke diesel engines that EMD introduced in 1965. This engin…

Model Manufacturers

Models by: Athearn

Available as HO Models (1)

Athearn

Technical Specifications

DesignationEMD SW1504
BuilderEMD
TypeSwitcher
Years Built2002-present
Total Built~20
Horsepower1500

History

The EMD SW1504 is a diesel-electric switching locomotive produced by General Motors' Electro-Motive Division and sold exclusively to Ferrocarriles Nacionales de México, the national railway system of…

Technical Notes

The SW1504 is built on a B-B wheel arrangement, meaning it rides on two two-axle trucks, with all four axles powered. The locomotive produces 1,500 horsepower …

Technical Specifications

DesignationEMD SW600
BuilderEMD
TypeSwitcher
Years Built1954-1962
Total Built29
Horsepower600

History

The EMD SW600 was a diesel-electric switcher locomotive produced by General Motors Electro-Motive Division from February 1954 through January 1962. It was introduced as a replacement for the earlier …

Technical Notes

The SW600 was powered by an EMD 567C prime mover configured as a six-cylinder engine, which produced 600 horsepower. This placed the locomotive at the lower bo…

Technical Specifications

DesignationEMD SW7
BuilderEMD
TypeSwitcher
Years Built1949-1950
Total Built488
Horsepower1200

History

The EMD SW7 was a diesel-electric switcher locomotive produced by General Motors' Electro-Motive Division beginning in October 1949. It served as a direct successor to the earlier NW2, which had offe…

Technical Notes

The SW7 was powered by the EMD 567B prime mover, a 12-cylinder version of EMD's reliable 567-series engine family, producing 1,200 horsepower. This represented…

Technical Specifications

DesignationEMD SW8
BuilderEMD
TypeSwitcher
Years Built1950-1954
Total Built81
Horsepower800

History

The EMD SW8 was a diesel-electric switcher locomotive produced by General Motors' Electro-Motive Division in the United States and General Motors Diesel in Canada between September 1950 and February …

Technical Notes

The SW8 was powered by an EMD 567-series prime mover, with early production units using the 567B eight-cylinder engine and later examples, built from October 1…

Technical Specifications

DesignationEMD SW9
BuilderEMD
TypeSwitcher
Years Built1950-1953
Total Built810
Horsepower1200

History

The EMD SW9 was a diesel-electric switcher locomotive produced by General Motors' Electro-Motive Division between November 1950 and December 1953. It served as the direct successor to the SW7, carryi…

Technical Notes

The SW9 was powered by the EMD 567B prime mover, a 12-cylinder two-stroke diesel engine producing 1,200 horsepower, driving DC traction motors arranged in a B-…

Model Manufacturers

Models by: Atlas · Rapido Trains

Available as HO Models (2)

Rapido Trains
$200
Atlas

Technical Specifications

DesignationEMD SW900
BuilderEMD
TypeSwitcher
Years Built1954-1965
Total Built102
Horsepower900

History

The EMD SW900 was a diesel switcher locomotive produced by General Motors Electro-Motive Division beginning in late 1953, serving as the successor to the SW8 in EMD's catalog. The model designation r…

Technical Notes

The SW900 was powered by an EMD 567C prime mover in eight-cylinder configuration, producing 900 horsepower and driving the locomotive through a direct current …

GE 44-tonner

44-tonner

Technical Specifications

DesignationGE 44-tonner
BuilderGE
TypeSwitcher
Years Built1940-1956
Total Built372
Wheel ArrangementB-B

History

General Electric introduced the 44-ton switcher in 1940, and the locomotive quickly found a niche in both industrial service and on short line and Class I railroads throughout North America and beyon…

Technical Notes

The 44-ton switcher used a B-B wheel arrangement, with two two-axle trucks providing a relatively light axle loading well suited to industrial trackage and bra…

GE 70-tonner

70-tonner

Technical Specifications

DesignationGE 70-tonner
BuilderGE
TypeSwitcher
Years Built1946-1956
Total Built238
Wheel ArrangementB-B

History

General Electric introduced the 70-ton switcher during the early 1940s as part of its growing line of diesel-electric locomotives aimed at branch line, industrial, and yard switching duties. The desi…

Technical Notes

The GE 70-ton switcher was built around a B-B wheel arrangement, meaning it rode on two two-axle trucks with all four axles powered. This configuration provide…

GE 95-tonner

95-tonner

Technical Specifications

DesignationGE 95-tonner
BuilderGE
TypeSwitcher
Years Built1954-1956
Total Built15
Horsepower750

History

General Electric produced the 95-ton switcher as part of its long-running line of industrial and yard switching locomotives during the mid-1950s. Between 1954 and 1956, GE built a total of fifteen of…

Technical Notes

The GE 95-tonner was powered by two Cooper-Bessemer diesel engines, a pairing that delivered a combined output of 750 horsepower. The use of twin prime movers …

GE AC4400CW

AC4400CW

Technical Specifications

DesignationGE AC4400CW
BuilderGE
TypeRoad Switcher
Years Built1993-2004
Total Built2625
Horsepower4400

History

The GE AC4400CW entered production in 1993 as General Electric Transportation Systems sought to offer American railroads a high-horsepower road locomotive equipped with alternating current traction t…

Technical Notes

The AC4400CW is powered by GE's FDL16 prime mover, a sixteen-cylinder turbocharged diesel engine producing 4,400 horsepower, and rides on a C-C wheel arrangeme…

Model Manufacturers

Models by: Athearn · Kato · ScaleTrains · Walthers

Available as HO Models (74)

Athearn
Walthers
DCCpremium
ScaleTrains

+ 70 more models

GE AC44C6M

AC44C6M

Technical Specifications

DesignationGE AC44C6M
BuilderGE
TypeRoad Switcher (Rebuilt)
Years Built2015-present
Total Built800+
Horsepower4400

History

The AC44C6M emerged from a cooperative effort between GE Transportation and several North American railroads seeking a cost-effective alternative to purchasing new AC-traction locomotives outright. T…

Technical Notes

The AC44C6M is built on the underframe of either a C40-8W or a C44-9W donor locomotive, retaining the original engine compartment, radiator section, and the 16…

Model Manufacturers

Models by: ScaleTrains

Available as HO Models (2)

ScaleTrains

GE AC6000CW

AC6000CW

Technical Specifications

DesignationGE AC6000CW
BuilderGE
TypeRoad Switcher
Years Built1995-2001
Total Built411
Horsepower6000

History

The GE AC6000CW emerged from an intense horsepower competition between the two dominant American locomotive manufacturers during the early to mid 1990s. General Electric, based in Erie, Pennsylvania,…

Technical Notes

The AC6000CW is a six-axle, AC-traction diesel-electric locomotive riding on a Co'Co' wheel arrangement, meaning each of its two trucks carries three independe…

Model Manufacturers

Models by: Broadway Limited

Available as HO Models (1)

Broadway Limited
DCCSoundpremium

GE ALP-45DP

ALP-45DP

Technical Specifications

DesignationGE ALP-45DP
BuilderGE
TypePassenger (Dual-mode)
Years Built2011-2012
Total Built36
Horsepower4200

History

The GE ALP-45DP is a dual-mode passenger locomotive developed by General Electric to meet the specific operational needs of commuter railroads that must transition between electrified and non-electri…

Technical Notes

The ALP-45DP is built on a B-B wheel arrangement, meaning it rides on two four-wheel powered bogies, a configuration well suited to the speed and weight requir…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Technical Specifications

DesignationGE B23-7
BuilderGE
TypeRoad Switcher
Years Built1977-1984
Total Built537
Horsepower2250

History

The GE B23-7 entered production in late 1977 as the direct successor to General Electric's U23B, which had been manufactured from early 1968 through mid-1977. The new model represented GE's transitio…

Technical Notes

The B23-7 is built around GE's FDL12 prime mover, a 12-cylinder version of the FDL engine family that GE had developed for its locomotive line. The FDL engine …

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Technical Specifications

DesignationGE B30-7
BuilderGE
TypeRoad Switcher
Years Built1977-1981
Total Built226
Horsepower3000

History

The GE B30-7 was introduced in 1977 as part of General Electric's Dash 7 series, representing the manufacturer's effort to refine and improve upon the earlier Universal series locomotives. It served …

Technical Notes

The B30-7 was powered by GE's FDL16 prime mover, a 16-cylinder four-stroke turbocharged diesel engine producing 3,000 horsepower for traction. The locomotive r…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

GE B30-7A

B30-7A

Technical Specifications

DesignationGE B30-7A
BuilderGE
TypeRoad Switcher
Years Built1981-1982
Total Built70
Horsepower3000

History

The GE B30-7A emerged from General Electric's broader Dash 7 locomotive program as a variant of the B30-7 road switcher, with production running from 1981 into 1982. The model represented a refinemen…

Technical Notes

The B30-7A is powered by GE's FDL16 prime mover in its standard configuration, though the defining characteristic of the A variant within the B30-7 family was …

GE B30-7A1

B30-7A1

Technical Specifications

DesignationGE B30-7A1
BuilderGE
TypeRoad Switcher
Years Built1982
Total Built12
Horsepower3000

History

The B30-7A1 was a specialized subvariant of General Electric's B30-7 family, produced as part of the broader Dash 7 series that GE developed through the late 1970s and early 1980s. Only twelve exampl…

Technical Notes

The B30-7A1 was powered by GE's FDL16 prime mover, a sixteen-cylinder turbocharged diesel engine producing 3,000 horsepower, driving DC traction motors in a B-…

Technical Specifications

DesignationGE B36-7
BuilderGE
TypeRoad Switcher
Years Built1980-1985
Total Built222
Horsepower3600

History

The GE B36-7 was a four-axle diesel-electric road switcher produced by General Electric Transportation Systems between January 1980 and September 1985. Conceived as a successor to the earlier U36B, t…

Technical Notes

The B36-7 was powered by GE's FDL16 prime mover, a turbocharged 16-cylinder four-cycle engine that produced 3,600 horsepower in early production units, with la…

Model Manufacturers

Models by: Atlas · Rapido Trains

Available as HO Models (2)

Rapido Trains
$250

Technical Specifications

DesignationGE C30-7
BuilderGE
TypeRoad Switcher
Years Built1976-1986
Total Built1137
Horsepower3000

History

The GE C30-7 entered production in September 1976 as General Electric's answer to the growing demand for high-horsepower six-axle road locomotives during the mid-1970s. It represented an evolutionary…

Technical Notes

The C30-7 is powered by GE's FDL16 prime mover, a 16-cylinder turbocharged diesel engine producing 3,000 horsepower. The FDL series had been developed by GE ov…

Model Manufacturers

Models by: Atlas · Rapido Trains

Available as HO Models (5)

$350
DCCSoundpremium
$240
premium
$240
premium
$140
standard

+ 1 more model

GE C30-7A

C30-7A

Technical Specifications

DesignationGE C30-7A
BuilderGE
TypeRoad Switcher
Years Built1984
Total Built50
Horsepower3000

History

The GE C30-7A was a specialized variant of General Electric's successful C30-7 road switcher, produced exclusively for Conrail in 1984. All 50 units were assembled between May and June of that year, …

Technical Notes

The most significant engineering distinction separating the C30-7A from the standard C30-7 was the use of a 12-cylinder version of the GE FDL diesel engine rat…

Model Manufacturers

Models by: Kato

Available as HO Models (1)

Technical Specifications

DesignationGE C36-7
BuilderGE
TypeRoad Switcher
Years Built1978-1987
Total Built599
Horsepower3600

History

The GE C36-7 emerged in 1978 as General Electric's answer to growing demand for higher-horsepower six-axle freight locomotives. Developed as a successor to the earlier U36C model, the C36-7 represent…

Technical Notes

The C36-7 is a six-axle diesel-electric locomotive riding on a C-C wheel arrangement, with each of its two three-axle trucks powered by individual traction mot…

Model Manufacturers

Models by: Rapido Trains

Available as HO Models (4)

$360
DCCSoundpremium
Rapido Trains
$250
$250
premium
$250
premium

GE C36-7E

C36-7E

Technical Specifications

DesignationGE C36-7E
BuilderGE
TypeRoad Switcher
Years Built1984
Total Built25
Horsepower3750

History

The GE C36-7E was a specialized export variant of General Electric's successful C36-7 road switcher, produced in 1984 as part of GE's broader Series 7 locomotive family. A total of 25 units were cons…

Technical Notes

The C36-7E was powered by GE's FDL16 prime mover, a 16-cylinder version of the FDL engine family that had become a cornerstone of GE's locomotive product line.…