EMD F9

EMD F9

D&RGW F9 #5771, 2009. Note the carbody filter grille ahead of the front porthole, the only reliable distinguishing feature of an F9.

Type and origin Power type Diesel-electric Builder General Motors Electro-Motive Division (EMD) General Motors Diesel (GMD, Canada) Model F9 Build date February 1953 – May 1960 Total produced 99 A units, 156 B units

Specifications AAR wheel arr B-B Gauge 4 ft 8 1⁄2 in (1,435 mm) Trucks Blomberg B Wheel diameter 40 in (1,016 mm) Minimum curve 23° (250.79 ft or 76.44 m radius) Wheelbase 39 ft (11.89 m) Length A unit, 50 ft 8 in (15.44 m) B unit, 50 ft 0 in (15.24 m) Width 10 ft 8 in (3.25 m) Height 15 ft (4.57 m) Prime mover EMD 567C RPM range 275-835 Engine type V16 Two-stroke diesel Aspiration Roots-type supercharger Displacement 9,072 cu in (148.66 L; 32.70 imp gal) Cylinders 16 Cylinder size

Performance figures Maximum speed 65 mph (105 km/h) Power output 1,750 hp (1.30 MW)

Career Locale North America

The EMD F9 was a 1,750 horsepower (1,300 kW) Diesel-electric locomotive produced between February 1953 and May 1960 by the Electro-Motive Division of General Motors (EMD) and General Motors Diesel (GMD). It succeeded the F7 model in GM-EMD's F-unit sequence. Final assembly was at GM-EMD's La Grange, Illinois plant. The F9 was also built in Canada by General Motors Diesel at their London, Ontario plant. A total of 100 cab-equipped lead A units and 154 cabless booster B units were built. The F9 was the fifth model in GM-EMD's highly successful "F" series of cab unit diesel locomotives.

A F9 can be distinguished reliably from a late F7 only by the addition of an extra filter grille ahead of the front porthole on the side panels on A units. Internally, the use of an 567C prime mover increased power to 1,750 hp from the F7's 1,500 hp.

By the time cab units such as the F9 were built, railroads were turning to the road switcher-style of locomotive, and the F9 was succeeded in most part by the EMD GP9.

Engine and powertrain

The F9 used a 16 cylinder 567C series diesel engine developing 1,750 hp (1.30 MW) at 800 rpm. The 567 was designed specifically for railroad locomotives, a supercharged 2 stroke 45 degree V type with 567 cu in (9.29 L) displacement per cylinder, for a total of 9,072 cu in (148.66 L). A D.C. generator powered four D37 traction motors, two on each Blomberg B truck. EMD has built all of its major components since 1939.

Original buyers

Locomotives built by EMD at La Grange, Illinois

Owner	Quantity A units	Quantity B units	Road numbers A units	Road numbers B units	Notes
Electro Motive Division (demonstrator)	1	—	975	—	to NP 7050A (freight), Built 2/53
Electro Motive Division (plant)	(1)	—	462	—	Rebuilt 5/60 from C&NW F7 6501A
Atlantic Coast Line	2	—	317:3, 417:2	—	Rebuilt May 1957 from wrecked F7's; same numbers.
Atchison, Topeka and Santa Fe Railway	18	18	281,C–289,C	281A,B–289A,B
Chicago and North Western	—	4	—	4051B–4054B	Ordered with FP9
Clinchfield Railroad	—	5	—	864–868
Colorado and Southern Railway	1	—	700D	—	Rebuilt from wrecked F7
Denver and Rio Grande Western Railroad	4	4	5531, 5571, 5771, 5774	5772, 5773, 5753, 5763	5571 rebuilt from wrecked F7
Erie Mining Company	5	6	100–104	200–205
Ferrocarriles Nacionales de México	10	10	7000A–7009A	7000B–7009B
Fort Worth and Denver Railway	1	—	750A	—	Rebuilt from wrecked F7
Great Northern Railway	—	6	—	470B,C–474B,C (even)
Kansas City Southern Railway	2	2	58D, 74D	55B, 70B	rebuilt from wrecked F3A,F7A,F3B F7B
Kansas City Southern (Louisiana and Arkansas Railway)	1	—	32A	—	rebuilt from wrecked F7
Louisville and Nashville Railroad	9	4	811, 919–926	717–720	811 rebuilt from F7
Milwaukee Road	6	6	81C–86C	81D–86D
Northern Pacific Railway	30	30	7000A,D–7014A,D	7000B,C–7014B,C	Freight units
Northern Pacific Railway	8	2	6700A,C–6701A,C, 6702A–6704A, 6500C	6700B–6701B	Passenger units
St. Louis-San Francisco Railway	—	13	—	5140–5152
Wabash Railroad	1	—	1141A	—	Rebuilt from wrecked F7
Totals	99	110

Locomotives built by GMD at London, Ontario

Owner	Quantity A units	Quantity B units	Road numbers A units	Road numbers B units	Notes
Canadian National	—	38	—	6600–6637	Passenger, ordered with FP9
Canadian Pacific	—	8	—	1900–1907	Passenger, ordered with FP9
Totals	0	46

See also

• List of GM-EMD locomotives
• List of GMD Locomotives

External links

• Media related to at Wikimedia Commons
• FallenFlags.org online manuals
• UtahRails.net online documents