The EMD FL9 has secured a rightful place in North American railroad history. These dual-power locomotives were designed to operate on both diesel-electric and on pure electric power so that they could haul the New Haven Railroad’s passenger trains in and out of New York City’s Grand Central Terminal without the need for an engine change. Built between 1955 and 1960, many of the fleet continued in regular revenue service for nearly fifty years on both long haul and commuter trains. While the last revenue commuter run occurred in 2009, two units remain in regular revenue service today on the Maine Eastern between Brunswick and Rockland Maine. Several others have been preserved and are in use on tourist railroads in both the US and Canada.