EMC E4

EMC E4
SAL #3003 leads the Orange Blossom Special into Plant City, Florida in 1939, inaugurating diesel service in the southeast.
Type and origin Power type Diesel-electric Builder Electro-Motive Corporation (EMC) Total produced 14 A units, 5 B units
Specifications Configuration: ​  • AAR A1A-A1A Gauge 4 ft 8+1⁄2 in (1,435 mm) Prime mover EMD 567, 2 off Engine type Two stroke diesel Cylinders V12 × 2
Performance figures Power output 2,000 hp (1,500 kW)
Career Disposition All scrapped

The EMC E4 was a 2,000 horsepower (1,500 kW), A1A-A1A passenger train-hauling diesel locomotive built by the Electro-Motive Corporation of La Grange, Illinois. All were built for the Seaboard Air Line Railway. The E4 was the fifth model in a long line of passenger diesels of similar design known as EMD E-units.

The 2,000 hp was achieved with two EMC model 567 V12 engines developing 1,000 hp, each engine driving its own electrical generator to power the traction motors.

The front noses of the E1, E3, E4, E5, and E6 cab units had a pronounced slant when viewed from the side. Therefore, these five models have been nicknamed "slant nose" units. Later E-unit models received the same blunted "bulldog nose" as the F-units.

Ironically, the E4 was produced before the E3. Both models were identical, save for the E4 having a pneumatically-operated nose door passageway in order to facilitate crew movement between units in a locomotive consist.

All the E4s were retired and scrapped by 1964.

Original owners

Railroad	Quantity A units	Quantity B units	Road numbers	Notes
Electro-Motive Corporation (demonstrator)	1	—	1939	to SAL 3013
Electro-Motive Corporation (demonstrator)	—	1	1939B	renumbered EMC 1940B, to SAL 3104
Seaboard Air Line Railway	13	—	3000–3012
Seaboard Air Line Railway	—	4	3100–3103

References

• Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Kalmbach Publishing Co., Milwaukee, WI. EMD–121– to EMD–123. ISBN 0-89024-026-4. {{cite book}}: Unknown parameter |nopp= ignored (|no-pp= suggested) (help)