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

GE FLXdrive (battery)

FLXdrive (battery)

Technical Specifications

DesignationGE FLXdrive (battery)
BuilderGE
TypeBattery-Electric
Years Built2021-present
Total Built~10 (early production)
Wheel ArrangementC-C

History

The FLXdrive battery-electric locomotive emerged from Wabtec's GE Transportation division as the company's first serious attempt at a zero-emissions freight locomotive platform. Development work bega…

Technical Notes

The FLXdrive is configured on a C-C wheel arrangement, meaning it rides on two three-axle trucks, consistent with the heavy haul demands expected of a locomoti…

Technical Specifications

DesignationGE Gas Turbine-Electric
BuilderGE

History

General Electric's involvement with gas turbine locomotive development represented one of the most ambitious and unconventional chapters in American railroad motive power history. GE began serious ex…

Technical Notes

The GE gas turbine-electric locomotives used an open-cycle gas turbine as their prime mover, in which compressed air was mixed with fuel in a combustion chambe…

Model Manufacturers

Models by: Athearn

Technical Specifications

DesignationGE P30CH
BuilderGE
TypePassenger
Years Built1975
Total Built25
Horsepower3000

History

Amtrak ordered 25 GE P30CH locomotives in 1974 as part of the national passenger railroad's early efforts to build a modern, purpose-built diesel fleet. General Electric delivered all 25 units in 197…

Technical Notes

The GE P30CH was powered by a GE FDL16 prime mover, a sixteen-cylinder version of General Electric's 7FDL diesel engine family, producing 3,000 horsepower and …

Technical Specifications

DesignationGE P32-8
BuilderGE
TypePassenger
Years Built1991
Total Built20
Horsepower3200

History

By the late 1980s and into 1990, Amtrak had begun evaluating options to supplement and eventually succeed its aging fleet of EMD F40PH locomotives. The railroad briefly investigated the experimental …

Technical Notes

The GE P32-8, formally designated the Dash 8-32BWH, was constructed on the longer underframe of the Dash 8-40BW rather than the standard Dash 8-32B frame. This…

GE P32AC-DM

P32AC-DM

Technical Specifications

DesignationGE P32AC-DM
BuilderGE
TypePassenger (Dual-mode)
Years Built1995
Total Built31
Horsepower3200

History

The P32AC-DM entered service in 1995 as a specialized variant within General Electric's Genesis locomotive family, designed specifically to address the operational demands of passenger rail service i…

Technical Notes

The P32AC-DM is powered by a GE FDL12 prime mover, a twelve-cylinder version of GE's well-established FDL engine family, producing 3,200 horsepower in diesel o…

Technical Specifications

DesignationGE P36
BuilderGE
TypePassenger (prototype)
Years Built1995
Total Built2
Horsepower3600

History

General Electric introduced the P36 in 1995 as a passenger locomotive demonstrator intended to showcase the company's capabilities in the dedicated passenger locomotive market. At a time when Amtrak …

Technical Notes

The P36 was built around GE's FDL16 prime mover, a sixteen-cylinder version of the FDL engine family that had seen extensive use across GE's freight locomotive…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Atlas

Technical Specifications

DesignationGE P40DC
BuilderGE
TypePassenger
Years Built1993
Total Built14
Horsepower4000

History

The P40DC was the first locomotive in General Electric's Genesis series, introduced in 1993 to address Amtrak's need for a modern, high-performance passenger diesel. Originally designated the AMD-103…

Technical Notes

The P40DC is powered by a GE FDL16 prime mover, a sixteen-cylinder four-stroke turbocharged diesel engine producing 4,000 horsepower at 1,047 rpm under full tr…

Operating Railroads

Model Manufacturers

Models by: Athearn

Available as HO Models (12)

$310
DCCSoundpremium

+ 8 more models

Technical Specifications

DesignationGE P42DC
BuilderGE
TypePassenger
Years Built1996-2001
Total Built208
Horsepower4250

History

The GE P42DC emerged from General Electric's Genesis locomotive program as the refined successor to the earlier P40DC, entering production in 1996 and continuing through 2001. A total of 208 units we…

Technical Notes

The P42DC is powered by a GE FDL16 prime mover producing 4,250 horsepower at 1,047 rpm, an improvement over the 4,000 horsepower output of the P40DC it succeed…

Operating Railroads

Model Manufacturers

Models by: Athearn · Kato

Available as HO Models (55)

$320
DCCSoundpremium
$310
DCCSoundpremium
$220
premium

+ 51 more models

Technical Specifications

DesignationGE U25B
BuilderGE
TypeRoad Switcher
Years Built1959-1966
Total Built478
Horsepower2500

History

The GE U25B represented General Electric's decisive return to the American domestic road locomotive market after more than two decades of working through partnerships and focusing on export sales. GE…

Technical Notes

The U25B was a B-B road switcher, meaning it rode on two powered trucks each carrying two axles, with all axles motored. The locomotive produced 2,500 horsepow…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Atlas

Technical Specifications

DesignationGE U25C
BuilderGE
TypeRoad Switcher
Years Built1963-1965
Total Built113
Horsepower2500

History

The General Electric U25C had its origins in an unusual circumstance: a construction railroad project in northern California. Oro Dam Constructors needed diesel power for a short but demanding heavy-…

Technical Notes

The U25C was a diesel-electric locomotive powered by GE's FDL16 prime mover, a sixteen-cylinder version of the FDL engine family, producing 2,500 horsepower in…

Technical Specifications

DesignationGE U28B
BuilderGE
TypeRoad Switcher
Years Built1966
Total Built146
Horsepower2800

History

The GE U28B was a four-axle, B-B road switcher diesel-electric locomotive introduced by General Electric in early 1966. It emerged as the direct successor to the U25B, which had established General E…

Technical Notes

The U28B was powered by GE's FDL16 prime mover, a 16-cylinder turbocharged diesel engine that produced 2,800 horsepower for traction purposes. This represented…

Model Manufacturers

Models by: Walthers

Available as HO Models (1)

Walthers

Technical Specifications

DesignationGE U28C
BuilderGE
TypeRoad Switcher
Years Built1965-1966
Total Built87
Horsepower2800

History

The GE U28C emerged in the mid-1960s as General Electric's response to intensifying competition in the diesel locomotive market. During this period, both Alco and General Motors were pushing horsepow…

Technical Notes

The U28C was powered by GE's FDL16 prime mover, a 16-cylinder four-cycle turbocharged diesel engine producing 2800 horsepower, representing a 300-horsepower in…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Technical Specifications

DesignationGE U30B
BuilderGE
TypeRoad Switcher
Years Built1966-1975
Total Built296
Horsepower3000

History

The GE U30B was a four-axle diesel-electric road switcher built by General Electric Transportation between 1966 and 1975. It represented a natural progression within GE's Universal series, following …

Technical Notes

The U30B rode on a B-B wheel arrangement, meaning two two-axle trucks supporting a single carbody, and was powered by GE's own FDL16 prime mover, a 16-cylinder…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Technical Specifications

DesignationGE U30C
BuilderGE
TypeRoad Switcher
Years Built1967-1976
Total Built600
Horsepower3000

History

General Electric introduced the U30C in 1966 as part of its Universal Series of diesel-electric locomotives, with production continuing through 1976 and a total of 600 units constructed over that spa…

Technical Notes

The U30C is a C-C road switcher, meaning it rides on two three-axle trucks with all axles powered, giving the locomotive six powered axles in total. Prime move…

Model Manufacturers

Models by: Atlas · Walthers

Available as HO Models (3)

Atlas
Walthers

Technical Specifications

DesignationGE U33B
BuilderGE
TypeRoad Switcher
Years Built1967-1970
Total Built137
Horsepower3300

History

The GE U33B was introduced in 1966 as part of General Electric's Universal Series of diesel-electric locomotives, representing a step up in output from the earlier U30B. Production ran from 1967 thro…

Technical Notes

The U33B was powered by GE's FDL16 prime mover, a 16-cylinder four-stroke turbocharged diesel engine producing 3,300 horsepower, an increase of 300 horsepower …

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Atlas

Technical Specifications

DesignationGE U33C
BuilderGE
TypeRoad Switcher
Years Built1968-1975
Total Built375
Horsepower3300

History

The GE U33C was a six-axle diesel-electric road switcher produced by General Electric Transportation Systems between January 1968 and January 1975. It represented part of GE's Universal Series, a lin…

Technical Notes

The U33C was powered by GE's FDL16 prime mover, a sixteen-cylinder version of the FDL engine family that formed the backbone of GE's locomotive line throughout…

Technical Specifications

DesignationGE U34CH
BuilderGE
TypePassenger
Years Built1970
Total Built32
Horsepower3430

History

The GE U34CH was a diesel-electric passenger locomotive built by General Electric beginning in 1970, with 32 units constructed for the New Jersey Department of Transportation and placed into commuter…

Technical Notes

The U34CH was powered by GE's FDL-16 prime mover, a sixteen-cylinder turbocharged diesel engine capable of producing 3,600 horsepower at its standard operating…

Technical Specifications

DesignationGE U36B
BuilderGE
TypeRoad Switcher
Years Built1969-1975
Total Built125
Horsepower3600

History

The GE U36B represented the culmination of General Electric's high-horsepower Universal Series locomotive program, entering production in January 1969 and continuing through December 1974. With a tot…

Technical Notes

The U36B was a B-B diesel-electric locomotive powered by the 16-cylinder GE FDL16 prime mover, producing 3,600 horsepower and making it the most powerful four-…

Technical Specifications

DesignationGE U36C
BuilderGE
TypeRoad Switcher
Years Built1971-1975
Total Built210
Horsepower3600

History

The GE U36C was a six-axle, 3,600 horsepower diesel-electric road switcher produced by General Electric Transportation Systems between October 1971 and February 1975. It represented the upper end of …

Technical Notes

The U36C was powered by GE's FDL16 prime mover, a 16-cylinder version of the company's well-regarded FDL engine family, which provided the locomotive's 3,600 h…

Technical Specifications

DesignationGE U50
BuilderGE

History

The GE U50 emerged from a Union Pacific Railroad initiative in the early 1960s to develop an exceptionally powerful locomotive capable of replacing the railroad's gas turbine fleet. Union Pacific's r…

Technical Notes

The U50 was in essence two GE U25B locomotives combined onto a single elongated frame, with each of the two 2,500 horsepower prime movers and its associated ge…

Model Manufacturers

Models by: Athearn

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