The EMD GP39X is a

diesel-electric locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels ...

built by the

General Motors Electro-Motive Division Progress Rail Locomotives, doing business as Electro-Motive Diesel (EMD), is an American manufacturer of diesel-electric locomotives, locomotive products and diesel engines for the rail industry. The company is owned by Caterpillar through its su ...

. All six units built were constructed for the Southern Railway with Southern's characteristic high short hood. They were updated by EMD at Norfolk Southern's (Southern's successor) request to

EMD GP49 An EMD GP49 is a 4-axle diesel locomotive built by General Motors Electro-Motive Division. Power was provided by an EMD 645F3B 12-cylinder engine which generated . The GP49 was marketed as one of four models in the 50 series introduced in 1979. Th ...

standards in 1982. Norfolk Southern retired them in 2001, and they now are owned by

Tri-Rail Tri-Rail is a commuter rail line linking Miami, Fort Lauderdale and West Palm Beach in Florida, United States. The ''Tri'' prefix in the name refers to the three counties served by the railroad: Palm Beach, Broward, and Miami-Dade. Tri-Rail ...

, after being upgraded with

head end power In rail transport, head-end power (HEP), also known as electric train supply (ETS), is the electrical power distribution system on a passenger train. The power source, usually a locomotive (or a generator car) at the front or 'head' of a train, p ...

and a lowered short hood.

References

External links

* Sarberenyi, Robert.
EMD GP39X, GP49, and GP50 Original Owners
' GP39X B-B locomotives Experimental locomotives Diesel-electric locomotives of the United States Standard gauge locomotives of the United States {{diesel-loco-stub