S F7 Diesel Locomotives

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1951

Product Type:

Plastic

Finish:

unpainted

Power:

AC, DC, or non-powered

Wheels:

scale or hi-rail

Online Article:

Supplemental Part:

Notes:

Note that this body shell is identical between each of the F-series models the company released. In actuality, the models were Phase IV F3 engines. Most of the models had a hump in the center. This was due to the shell being pulled from the die before it was fully cured. Another quirk about these models is that they have EMD E8-style numberboards; correct replacement boards were available later.

This model has the original planetary drive system.

A clear view of the original planetary drive system. Some models have it mounted at an angle and some have it straight.

This model has the Robert L Miller Laboratory trucks installed in it (see the next photo).

Enhorning model with Robert L Miller Laboratory trucks installed.

Scanned by Rich Gajnak from the November 1953 Model Railroader magazine ad.

From the October 1951 Model Railroader magazine ad.

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20068-1

Additional IDs:

35-20069-1

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Western Maryland (WM)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

62, 63

Product Type:

Plastic

Finish:

painted & lettered

Power:

MTH DCS & Proto-Sound 3.0

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20069-4

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Western Maryland (WM)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

65

Product Type:

Plastic

Finish:

painted & lettered

Power:

Not Powered/Dummy

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20062-1

Additional IDs:

35-20063-1

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Chicago, Burlington & Quincy (CBQ)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

168-A, 169-A

Product Type:

Plastic

Finish:

painted & lettered

Power:

MTH DCS & Proto-Sound 3.0

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Online Article:

Supplemental Part:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20063-4

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Chicago, Burlington & Quincy (CBQ)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

168-C

Product Type:

Plastic

Finish:

painted & lettered

Power:

Not Powered/Dummy

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

Supplemental Part:

This is likely an MTH's Photoshop rendition, and it shows the wrong road number.

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20059-1

Additional IDs:

35-20060-1

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Reading (RDG)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

269, 271

Product Type:

Plastic

Finish:

painted & lettered

Power:

MTH DCS & Proto-Sound 3.0

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Online Article:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20060-4

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Reading (RDG)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

284

Product Type:

Plastic

Finish:

painted & lettered

Power:

Not Powered/Dummy

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20053-1

Additional IDs:

35-20054-1

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Southern Pacific (SP)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

6184, 6185

Product Type:

Plastic

Finish:

painted & lettered

Power:

MTH DCS & Proto-Sound 3.0

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20056-1

Additional IDs:

35-20057-1

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Chesapeake & Ohio (C&O)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

7017, 7016

Product Type:

Plastic

Finish:

painted & lettered

Power:

MTH DCS & Proto-Sound 3.0

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

An A-B-A set running on Mike Marmer's layout.

Another A-B-A set running on Mike Marmer's layout.

An A-B-A set being tested for some of their DCC functions on Mike Marmer's layout.

Passing By on Michael Marmer's Layout (working crossing gate)

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20057-4

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Chesapeake & Ohio (C&O)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

7029

Product Type:

Plastic

Finish:

painted & lettered

Power:

Not Powered/Dummy

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

An A-B-A set running on Mike Marmer's layout.

Another A-B-A set running on Mike Marmer's layout.

An A-B-A set being tested for some of their DCC functions on Mike Marmer's layout.

Model Manufacturer Info

Manufacturer:

MTH Electric Trains (click for web site)

Manufacturer ID:

35-20054-4

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Southern Pacific (SP)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2021

Road Number:

8182

Product Type:

Plastic

Finish:

painted & lettered

Power:

Not Powered/Dummy

Wheels:

scale or hi-rail

Couplers:

AF or scale

Supplemental:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

New River Models

Prototype Info

Category:

F7

Road Name:

Wabash (WAB)

Model Info

Gauge:

S

Product Type:

Resin

Finish:

painted & lettered

Model Manufacturer Info

Manufacturer:

nullroute (click for web site)

Prototype Info

Category:

F7

Manufacturer:

Electro-Motive Division (EMD)

Road Name:

Milwaukee Road (MILW)

Model Info

Gauge:

S

Introduced:

2023

Product Type:

3D-print File

Supplemental Part:

Louvers

Supplemental Part:

Supplemental Part:

3mm LED Headlamp Holder

Notes:

This is a modified version of the RamBros Workshop's original design.

Model Manufacturer Info

Manufacturer:

Omnicon Scale Models

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1988

Product Type:

Plastic/Metal Kit

Finish:

unpainted

Power:

DC

Wheels:

scale

Couplers:

scale

Magazine Article:

S/Sn3 Modeling Guide, Dec 1997

Supplemental Part:

Notes:

The kit consisted of a one-piece urethane body casting, sprung unassembled brass trucks manufactured by SouthWind Models, a NorthWest ShortLine drive system, a Sagami motor, a formed and pre-drill metal floor, SouthWind Models brass detailing parts, a brass wire, and an instruction booklet. The body shell was actually produced by Wabash Valley, which, itself, was a re-worked Enhorning shell. The gearing was set to match the American Models' FP7 engines of the time, so that these could run in a consist. The super-detailing kit (part #1007S) was also available separately. These models could be used for building a late-F3 model or an early F7 one, with some extra effort by the modeler.

The photo is from the Omnicon promotional flyer.

Model Manufacturer Info

Manufacturer:

Overland Models

Manufacturer ID:

1750

Factory:

Ajin Precision, Korea

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1987

Product Type:

Brass

Finish:

unpainted

Power:

DC

Wheels:

scale

Supplemental Part:

The model is shown as it arrived from the factory.

Model Manufacturer Info

Manufacturer:

Overland Models

Manufacturer ID:

1750.1

Factory:

Ajin Precision, Korea

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Baltimore & Ohio (B&O)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1987

Product Type:

Brass

Finish:

painted & lettered

Power:

DC

Wheels:

scale

Supplemental Part:

Model Manufacturer Info

Manufacturer:

Overland Models

Manufacturer ID:

1750.1

Factory:

Ajin Precision, Korea

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Great Northern (GN)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1987

Product Type:

Brass

Finish:

painted & lettered

Power:

DC

Wheels:

scale

Supplemental Part:

Notes:

Factory-painted for the GN.

Model Manufacturer Info

Manufacturer:

Overland Models

Manufacturer ID:

1762

Factory:

Ajin Precision, Korea

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Pennsylvania Railroad (PRR)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1987

Product Type:

Brass

Finish:

unpainted

Power:

DC

Wheels:

scale

Supplemental Part:

Notes:

The came with the PRR-specific Trainphone antennae.

Model Manufacturer Info

Manufacturer:

RamBros Workshop (click for web site)

Prototype Info

Category:

F7

Manufacturer:

Electro-Motive Division (EMD)

Model Info

Gauge:

S

Introduced:

2023

Product Type:

3D-print File

Online Article:

Overview of the System

Supplemental Part:

Louvers

Supplemental Part:

Supplemental Part:

3mm LED Headlamp Holder

Notes:

This company is the originator of this "open source" locomotive design. Since it is open source, you will find others whom have enhanced the design, and yet others who make the actual 3D-printed models available for sale. This company only makes the 3D-printer files available.

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00869 (DC)

Additional IDs:

00809 (AC, sound), 00839 (DCC sound)

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Product Type:

Plastic

Finish:

painted, not lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Supplemental Part:

Notes:

A-unit, available in three different configurations.

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00870

Additional IDs:

00810, 00840, 00871, 00811, 00841

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Atchison Topeka & Santa Fe (ATSF)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Road Number:

37L, 37C

Product Type:

Plastic

Finish:

painted & lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Supplemental Part:

Notes:

This is the ATSF's passenger train version.

TMCC, sound, and Mars lights installed by Ed Goldin.

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00872

Additional IDs:

00812, 00842, 00873, 00813, 00843

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Atchison Topeka & Santa Fe (ATSF)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Road Number:

206L, 206C

Product Type:

Plastic

Finish:

painted & lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Supplemental Part:

Notes:

This is the ATSF's freight train version.

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00878

Additional IDs:

00818, 00848, 00879, 00819, 00849

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Great Northern (GN)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Road Number:

454A, 454D

Product Type:

Plastic

Finish:

painted & lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00880

Additional IDs:

00820, 00850, 00881, 00821, 00851

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Missouri Pacific (MP)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Road Number:

587, 591

Product Type:

Plastic

Finish:

painted & lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00874

Additional IDs:

00814, 00844, 00875, 00815, 00845

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Boston & Maine (BM)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Road Number:

4265, 4268

Product Type:

Plastic

Finish:

painted & lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00876

Additional IDs:

00816, 00846, 00877. 00817. 00847

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Denver & Rio Grande Western (D&RGW)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Road Number:

5551, 5554

Product Type:

Plastic

Finish:

painted & lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

S-Helper Service

Manufacturer ID:

00882

Additional IDs:

00822, 00852, 00883, 00823, 00853

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Pennsylvania Railroad (PRR)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

2002

Road Number:

9654, 9660

Product Type:

Plastic

Finish:

painted & lettered

Power:

AC, DC, or DCC, with or without sound

Wheels:

scale and hi-rail

Couplers:

AF & scale

Supplemental:

Online Article:

Supplemental Part:

Model Manufacturer Info

Manufacturer:

Wabash Valley Lines, Inc.

Manufacturer ID:

772.2-64-100

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1985

Product Type:

Resin

Finish:

unpainted

Power:

No Chassis

Supplemental Part:

Notes:

The Wabash Valley shells are an improved version of the Enhorning F-unit casts (the Enhorning ones had a deformation on their roof top and a crease on the side). Compared to prototype photos, the Wabash Valley Models shells represent F3 phase IV (9/1948 to 2/1949) EMD bodies. The shell has the slight "V"-shape above the rear end flat door panel, which is consistent with F3 body ends, but there is no roof overhang. The shell has the two rectangular roof vents for the dynamic brakes which are an F3 phase IV feature. Some shell modifications would need to be made by the modeler to represent a true F7. Originally, the recommendation was to use an American Models FP7 chassis to power these models. However, the American Models GP9 (which was not available back then) is a much better fit and will only require some corner trimming of the GP9's metal base. Also, the trucks line up better with the shell. Additional details, such as simulated glass and couplers will need to be added by the modeler for a complete model.

Bill's model has undergone some improvements by replacing the affected portions of the shell with brass detailing parts.

Mark Mugnai has shells that have four or six chassis mounting posts. Mark found that the original Enhorning shells had the center posts, but that they have to be removed to be able to mount a chassis into the shell.

Model Manufacturer Info

Manufacturer:

Wabash Valley Lines, Inc.

Manufacturer ID:

772.2-64-110

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Western Maryland (WM)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1985

Product Type:

Resin

Finish:

unpainted

Power:

No Chassis

Supplemental Part:

Supplemental Part:

Notes:

The Wabash Valley shells are an improved version of the Enhorning F-unit casts (the Enhorning ones had a deformation on their roof top and a crease on the side). Compared to prototype photos, the Wabash Valley Models shells represent F3 phase IV (9/1948 to 2/1949) EMD bodies. The shell has the slight "V"-shape above the rear end flat door panel, which is consistent with F3 body ends, but there is no roof overhang. The shell has the two rectangular roof vents for the dynamic brakes which are an F3 phase IV feature. Some shell modifications would need to be made by the modeler to represent a true F7. Originally, the recommendation was to use an American Models FP7 chassis to power these models. However, the American Models GP9 (which was not available back then) is a much better fit and will only require some corner trimming of the GP9's metal base. Also, the trucks line up better with the shell. Additional details, such as simulated glass and couplers will need to be added by the modeler for a complete model.

The pre-decorated shell is shown at the bottom left in the manufacturer's group photo.

Model Manufacturer Info

Manufacturer:

Wabash Valley Lines, Inc.

Manufacturer ID:

772.2-64-111

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Monon (MON)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1985

Product Type:

Resin

Finish:

unpainted

Power:

No Chassis

Supplemental Part:

Notes:

The Wabash Valley shells are an improved version of the Enhorning F-unit casts (the Enhorning ones had a deformation on their roof top and a crease on the side). Compared to prototype photos, the Wabash Valley Models shells represent F3 phase IV (9/1948 to 2/1949) EMD bodies. The shell has the slight "V"-shape above the rear end flat door panel, which is consistent with F3 body ends, but there is no roof overhang. The shell has the two rectangular roof vents for the dynamic brakes which are an F3 phase IV feature. Some shell modifications would need to be made by the modeler to represent a true F7. Originally, the recommendation was to use an American Models FP7 chassis to power these models. However, the American Models GP9 (which was not available back then) is a much better fit and will only require some corner trimming of the GP9's metal base. Also, the trucks line up better with the shell. Additional details, such as simulated glass and couplers will need to be added by the modeler for a complete model.

The pre-decorated shell is shown at the top left in the manufacturer's group photo.

Mark Mugnai Monon shell came with the label shown in this photo. There are no records of a "New River Models" company, so speculation is that this was a part of Wabash Valley Lines, Inc., perhaps it was their "division" that sold pre-painted/decorated shells?

Model Manufacturer Info

Manufacturer:

Wabash Valley Lines, Inc.

Manufacturer ID:

772.2-64-112

Prototype Info

Category:

F7

Year/Era:

1949

Manufacturer:

Electro-Motive Division (EMD)

Dimensions:

50'8"

Road Name:

Lehigh Valley (LV)

Ext. Reference:

Ext. Reference:

Ext. Reference:

Model Info

Gauge:

S

Introduced:

1985

Product Type:

Resin

Finish:

unpainted

Power:

No Chassis

Supplemental Part: