EMD FL-9

EMD FL9
New Haven FL9 No. 2010 at Enfield in 1968
Type and origin Power type Electro-diesel Builder General Motors Electro-Motive Division (EMD) Model FL9 Build date October 1956 – November 1960 Total produced 60
Specifications Configuration: ​  • AAR B-A1A Gauge 4 ft 8 1⁄2 in (1,435 mm) Length 59 ft 0 in (17.98 m) Loco weight 287,000 lb (130,000 kg) Electric system/s 660 V DC Third rail Current pickup(s) Contact shoe Prime mover EMD 567C (2000–2029), EMD 567D1 (2030–2059) Engine type V16 Two-stroke diesel Aspiration Roots blower Displacement 9,072 cu in (148.663 L) Generator DC generator Traction motors DC traction motors Cylinders 16 Cylinder size 8.5 in × 10 in (216 mm × 254 mm) Transmission Electric Loco brake Straight air, original 24RL later 26C Train brakes Air
Performance figures Maximum speed 89 mph (143 km/h) Power output 567C: 1,750 hp (1,300 kW), 567D1: 1,800 hp (1,300 kW) Tractive effort 53,200 lbf (236.6 kN) (Starting) 29,500 lbf (131.2 kN) (Continuous) @ 9.3 mph
Career Operators New Haven, Penn Central, Amtrak, ConnDOT, Metro-North Class EDER-5 (2000-2029), EDER-5a (2030-2059) Locale North America Disposition a few still in occasional service, some others preserved in museum collections, Metro North's and ConnDot's retired

The EMD FL9 (New Haven Class EDER-5) is a dual-power electro-diesel locomotive, capable of diesel-electric operation and as an electric locomotive powered from a third rail. Sixty units were built between October 1956 and November 1960 by General Motors Electro-Motive Division for the New York, New Haven and Hartford Railroad (the "New Haven"); The FL9 model was in direct competition with the less popular Fairbanks-Morse dual-power P-12-42 model.

The locomotive was based on the EMD FP9, lengthened to accommodate additional equipment, including a larger train heating steam boiler. Due to the additional weight, the locomotive was equipped with a three-axle rear truck, giving it an uncommon B-A1A wheel arrangement. The middle axle of the rear truck was not powered. The Flexicoil type of truck was used at both front and rear, due to this type of truck having more room for fitting the third rail shoes.

The FL9 was capable of using either an over-running or under-running third rail by means of retractable shoes operated by pneumatic cylinders. The first thirty locomotives had a small DC pantograph for use within New York City's Grand Central Terminal, where long gaps exist in the third rail because of the complex trackage that includes numerous railroad switches. For operation into the Pennsylvania Railroad's Pennsylvania Station, the FL9 used the Long Island Rail Road's third rail system.