description EMD FL9 Overview
The EMD FL9 is a dual-mode locomotive developed by General Motors Electro-Motive Division for the New Haven Railroad's passenger routes. Built from 1956 to 1960, it could operate as a diesel-electric locomotive on non-electrified track and draw power from a third-rail system on electrified sections. This arrangement allowed through passenger trains to run between unelectrified territory and New York without changing locomotives.
help EMD FL9 FAQ
What was the EMD FL9 built for?
The FL9 was built by General Motors Electro-Motive Division for the New York, New Haven and Hartford Railroad. It was designed for passenger service on routes that combined non-electrified track with third-rail territory.
How did the EMD FL9 operate in two modes?
It could run as a diesel-electric locomotive or draw electric power from a third rail. That dual-mode capability allowed trains to reach New York terminals without changing locomotives.
Why was the FL9 useful for Grand Central Terminal trains?
Grand Central Terminal required electric operation in its underground approaches, while much of the New Haven's route was not electrified. The FL9 could switch between diesel power outside the city and third-rail power near the terminal.
How many EMD FL9 locomotives were built?
A total of 60 FL9 locomotives were built between 1956 and 1960. The first batch used 1,750-horsepower EMD 567C engines, while the 1960 batch used 1,800-horsepower 567D1 engines.
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