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The EMD FP7
EMD FP7
was a 1,500 horsepower (1,100 kW), B-B dual-service passenger and freight-hauling diesel locomotive produced between June 1949 and December 1953 by General Motors' Electro-Motive Division and General Motors Diesel. Final assembly was at GM-EMD's La Grange, Illinois plant, excepting locomotives destined for Canada, in which case final assembly was at GMD's plant in London, Ontario. The FP7 was essentially EMD's F7A locomotive extended by four feet to give greater water capacity for the steam generator for heating passenger trains.

Contents

1 Design 2 Original buyers

2.1 Locomotives built by EMD at La Grange, Illinois 2.2 Locomotives built by GMD at London, Ontario

3 Preserved examples 4 See also 5 References

5.1 Notes 5.2 Bibliography

6 External links

Design[edit] While EMD's E-units were successful passenger engines, their A1A-A1A wheel arrangement made them less useful in mountainous terrain.[citation needed] Several railroads had tried EMD's F3 in passenger service, but there was insufficient water capacity in an A-unit fitted with dynamic brakes. The Atchison, Topeka and Santa Fe Railway's solution was to replace the steam generators in A-units with a water tank, and so only fitted steam generators into the B-units. The Northern Pacific Railway's solution was to fit extra water tanks into the first baggage car, and to pipe the water to the engines. The real breakthrough came when EMD recognized the problem and added the stretched FP7 to its catalog. A total of 381 cab-equipped lead A units were built; unlike the freight series, no cabless booster B units were sold. Regular F7B units were sometimes used with FP7 A units, since they, lacking cabs, had more room for water and steam generators. The FP7 and its successor, the FP9, were offshoots of GM-EMD's highly successful F-unit series of cab unit freight diesels. F3s, F7s, and F9s equipped for passenger service are not FP-series locomotives, which although similar in appearance have distinctive differences, including but not limited to the greater body length. The extra 4 ft (1.2 m) of length was added behind the first body-side porthole, and can be recognised by the greater distance between that porthole and the first small carbody filter grille. The corresponding space beneath the body, behind the front truck, was also opened up; this either remained an empty space or was filled with a distinctive water tank shaped like a barrel mounted transversely.[1] Original buyers[edit] Locomotives built by EMD at La Grange, Illinois[edit]

Railroad Quantity FP7 Quantity F7B (where bought with FP7) Road numbers FP7 Road numbers F7B Notes

Electro-Motive Division (demonstrator)

1

2

7001

7002–7003

to Soo Line (Wisconsin Central) 2500A, 2500B, 2501B

Electro-Motive Division (demonstrator)

1

2

9051

9052–9053

to Soo Line 500A, 500B, 501B

Arabian American Oil Company
Arabian American Oil Company
(Saudi Arabia)

2

1006–1007

Built with 567C engines

Atlanta and West Point Rail Road

4

551–554

Atlantic Coast Line

44

850–893

Alaska Railroad

3

1

1510–1514 (even)

1507

1510-1514 built with 567BC engines

Chicago and Eastern Illinois Railroad

11

1600–1609, 1609 2nd

1609 1st destroyed at Mode, IL 6/28/1951 and rebuilt on a new frame with same road number and serial number

Chesapeake and Ohio Railway

16

7

8000–8015

8500–8506

Chicago Great Western Railway

3

5

116-A, -C, 116-C 2nd

116-B,D,E,F,G 116-C 1st destroyed at North Hanover, IL 6/2/1951 and rebuilt on a new frame with same road number and serial number.

Chicago, Rock Island and Pacific Railroad

10

402–411

Clinchfield Railroad

1

200

repaint into family lines paint then to Seaboard System
Seaboard System
and renumbered to 118 then To CSX

Ferrocarriles Nacionales de México

17

7

6300–6309, 6328A–6334A

6328B–6334B

Ferrocarril Sonora-Baja California

2

23035–23036

Florida East Coast Railway

5

571–575

Georgia Railroad

3

1002–1004

Louisville and Nashville Railroad

45

600–634, 663–672

Milwaukee Road

32

16

90A,C–105A,C

90B–105B

90–94 renumbered 60–64 for freight service; 93A (63A) and 104A sold to GO Transit

Missouri-Kansas-Texas Railroad

8

4

121A,C–124A,C

121B–124B

Northern Pacific Railway

2

6600–6601

Pennsylvania Railroad

40

14

9832A–9871A

9832B–9858B (even)

A units renumbered 4332-4371 and B units 4150-4163 by PRR for Penn Central; 18 scattered A units 4332-4370 to Conrail

Reading Company

8

900–907

900, 902, 903 to SEPTA, renumbered 4371-4373

Richmond, Fredericksburg and Potomac Railroad

3

1201–1203

St. Louis-San Francisco Railway

12

5040–5051

Soo Line

5

2

501A–503A, 504–505

502B–503B

Soo Line (Wisconsin Central Railway)

1

2501A

Southern Railway (Cincinnati, New Orleans and Texas Pacific Railway)

20

6130–6149

Southern Pacific Company

16

6446–6461

6446-6451; 6453-6459; 6461 to Amtrak
Amtrak
110-123

St. Louis Southwestern Railway
St. Louis Southwestern Railway
(“Cotton Belt”)

1

330

Renumbered to 306 then leased to Southern Pacific as SP 6462

Union Pacific Railroad

2

2

911-912

910B, 910C

Renumbered to 1498 - 1499

Western Railway of Alabama

2

502–503

Western Pacific Railroad

4

2

804A,C–805A,C

804B–805B

Totals 324 64

Locomotives built by GMD at London, Ontario[edit]

Railroad Quantity FP7 Quantity F7B (were bought with FP7) Road numbers FP7 Road numbers F7B Notes

Canadian Pacific Railway

35

29

4028–4041, 4058–4063, 4066–4075, 4099–4103

4424–4448, 4459–4462

Ontario Northland Railway

22

1500–1521

1500, 1503-1505, 1507, 1511-1514 sold to GO Transit

Totals 57 29

Preserved examples[edit]

Reading 903
Reading 903
at the Railroad Museum of Pennsylvania.

Alaska Railroad
Alaska Railroad
1510 and 1512, used by the Verde Canyon Railroad
Verde Canyon Railroad
in Clarkdale, Arizona, on its excursion train. Chicago Great Western Railway
Chicago Great Western Railway
116-A, on display, at Hub City Heritage Railroad Museum,[2] Oelwein, Iowa. Canadian Pacific Railway
Canadian Pacific Railway
4071[permanent dead link], renumbered as Western Maryland Railway
Western Maryland Railway
243, in working condition and in use at the Durbin and Greenbrier Valley Railroad. Canadian Pacific Railway
Canadian Pacific Railway
4069, in working condition and in use at the West Coast Railway Heritage Park; see West Coast Railway Association. Clinchfield Railroad
Clinchfield Railroad
200, renumbered as Western Maryland Railway
Western Maryland Railway
67, in working condition and in use at the Durbin and Greenbrier Valley Railroad. Milwaukee Road
Milwaukee Road
101A, on static display (was non-operational when acquired but reportedly restored by volunteers to operable condition[3]) in Cresco, Iowa. Milwaukee Road
Milwaukee Road
104C, at the Illinois Railway Museum, Union, Illinois. Milwaukee Road
Milwaukee Road
96C, in Monon livery waiting to be restored at the Indiana Transportation Museum, Noblesville, Indiana. Reading 900, at the Reading Railroad Museum in Hamburg, Pa. Reading 902, on display at Steamtown National Historic Site
Steamtown National Historic Site
in Scranton, Pennsylvania. Reading 903, also on display at Steamtown. Soo Line 500A (né EMD demonstrator #9051), on display at Ladysmith, Wisconsin. Soo Line 2500A (né EMD demonstrator #7001), restored to working condition, at Lake Superior Railroad Museum, Duluth, Minnesota. Southern Railway 6133, in working condition at the North Carolina Transportation Museum at Spencer, North Carolina. Southern Railway 6143 and 6147, in working condition and in use at the Stone Mountain Park at Atlanta, Georgia. Southern Railway, 6141 and 6138 as R J Corman 1940-1941 in use by the Kentucky Dinner Train operation out of Bardstown, Kentucky. Western Pacific 805-A, a locomotive used on the famous California Zephyr, is preserved in operable condition at the Western Pacific Railroad Museum at Portola, California.

See also[edit]

Trains portal

List of GM-EMD locomotives List of GMD Locomotives

References[edit] Notes[edit]

^ Foster, Gerald L. (1996). A Field Guide to Trains of North America. Houghton Mifflin Harcourt.  ^ "Home". Hub City Heritage Corporation Railway Museum.  ^ "Beadle Park – Cresco, Iowa". Iowa Beautiful. 

Bibliography[edit]

Dorin, Patrick C. (1972). Chicago and North Western Power. Burbank, California: Superior Publishing. pp. 123–127. ISBN 0-87564-715-4.  Lamb, J. Parker (2007). Evolution of the American Diesel Locomotive. Railroads Past and Present. Bloomington, IN, USA: Indiana University Press. ISBN 9780253348630.  Marre, Louis A. (1995). Diesel Locomotives: The First 50 Years: A Guide to Diesels Built Before 1972. Railroad Reference Series (Book 10). Waukesha, WI, USA: Kalmbach Publishing. ISBN 0890242585.  Pinkepank, Jerry A. (1973). The Second Diesel Spotter’s Guide. Milwaukee, WI: Kalmbach Publishing Company. ISBN 0-89024-026-4.  Schafer, Mike (1998). Vintage Diesel Locomotives. Enthusiast Color Series. Osceola, WI, USA: MBI Publishing. ISBN 0760305072.  Solomon, Brian (2000). The American Diesel Locomotive. Osceola, WI: MBI Publishing Company. ISBN 978-0-7603-0666-6.  Solomon, Brian (2005). EMD F-Unit Locomotives. North Branch, MN, USA: Specialty Press. ISBN 1580071929.  Solomon, Brian (2006). EMD Locomotives. St. Paul, MN: Voyageur Press. ISBN 978-0-7603-2396-0.  Solomon, Brian (2010). Vintage Diesel Power. Minneapolis, MN, USA: MBI Publishing. ISBN 9780760337950.  Solomon, Brian (2011). Electro-Motive E-Units and F-Units: The Illustrated History of North America's Favorite Locomotives. Minneapolis, MN, USA: Voyageur Press. ISBN 9780760340073.  Solomon, Brian (2012). North American Locomotives: A Railroad-by-Railroad Photohistory. Minneapolis, MN, USA: Voyageur Press. ISBN 9780760343708.  Wilson, Jeff (1999). F Units: The Diesels That Did It. Golden Years of Railroading series. Waukesha, WI, USA: Kalmbach Publishing. ISBN 0890243743. 

External links[edit]

Wikimedia Commons has media related to EMD FP7
EMD FP7
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Passenger rail cars and locomotives of SEPTA
SEPTA
Regional Rail and its predecessors

1960s 1970s 1980s 1990s 2000s 2010s

63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17

Pioneer III (Silverliner I)

Silverliner II

Silverliner III

Silverliner IV

Silverliner V

PRR MP54

Blueliner

EMD AEM-7

ABB ALP-44

Budd RDC

EMD FP7

GE U34CH

Comet I

Comet II

Comet III

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Diesel cab and cowl locomotives built by GM-EMD

Cab units (F- & E-units)

FT F2 F3 F7 FP7 F9 FP9 FL9 TA EA/EB E1 E2 E3 E4 E5 E6 E7 E8 E9 AA AB6

Cowl units

F45 FP45 F40C F40PH F40PH-2 F40PH-2C F40PH-2M SDP40F SD40-2F SD50F F59PH F59PHI F125 SD60F F69PHAC DE30AC, DM30AC

See also: List of

.