EMD F125

EMD F125
File:Metrolink EMD F125 Spirit.jpg
Type and origin Power type Diesel-electric Builder Electro-Motive Diesel, Caterpillar, Inc., Progress Rail Services Order number 20 Build date 2015-2017
Specifications Configuration: ​  • AAR B-B  • UIC Bo′Bo′ Gauge 4 ft 8+1⁄2 in (1,435 mm) Bogies Vossloh-built Wheel diameter 40 in (1,016 mm) Wheelbase 115 in (2,921 mm) (Truck) 42 ft 4 in (12.90 m) (Locomotive) Length 69 ft 0 in (21.03 m) Height 14 ft 7 in (4.45 m) Axle load 72,500 lb (32,885 kg) Adhesive weight 100% Loco weight 280,000 lb (127,006 kg) Fuel type Diesel Fuel capacity 1,800 US gal (6,800 L; 1,500 imp gal) Standard; larger tanks optional Sandbox cap. Four boxes @ 6.25 cubic feet (177 liters) each Prime mover Caterpillar C175-20 RPM range 600-1800 Engine type 45° V20, four stroke cycle Aspiration Turbocharged Displacement 105.8 liters (6,460 cu in) Traction motors Four EMD A2921 AC Motors Cylinders 20 Cylinder size 5.29 liters (323 cu in) Transmission AC-DC-AC MU working AAR Train heating Locomotive supplied Head end power (inverters rated between 600-1050 kW) Loco brake Dynamic / Regenerative / Electropneumatic / Blend Brake Train brakes Electropneumatic Safety systems Crash Energy Management (CEM) Technology Positive Train Control (PTC)
Performance figures Maximum speed 125 mph (201 km/h) Power output At alternator: 4,700 hp (3,500 kW) At wheel (HEP dependent): ~4,200 hp (3,100 kW) to ~3,200 hp (2,400 kW) Tractive effort 316 kN (71,000 lbf) Starting Factor of adh. 3.94 (25.4%)
Career Operators Metrolink (Southern California) Official name Spirit

The EMD F125 Spirit is a four-axle high speed passenger diesel locomotive to be manufactured by EMD. It is powered by a Caterpillar C175-20 diesel engine rated at 4,700 hp (3,500 kW). The locomotive will be capable of traveling at a maximum in service speed of 125 mph (201 km/h) pulling consists of up to 10 cars. It will be EMD's first new passenger locomotive since the F59PHI.

Several features include EPA Tier 4 emissions compliance, AC traction systems, extended range blend and dynamic brakes with HEP regeneration capabilities, advanced crash energy management (CEM) technology, and streamlined body design.

Operators

Los Angeles commuter agency Metrolink is the first to order this locomotive, purchasing 10 with an option for 10 more. Cost is estimated at $129.4 million with delivery expected to commence in 2015. The order was signed on May 31, 2013. As of February 10, 2014, additional funding commitments were secured to finance the purchase of the 10 option locomotives, bringing the total order count to 20 units. The first locomotive is expected to be delivered begin testing in the first quarter of 2016, with the bulk of the order being delivered by April 2017.

External links

• Official EMD Specifications
• Caterpillar Page on C175-20 Generator
• News Release on the locomotive with some information on specifications
• F125 Tier-4 EMD Status Report (January 24, 2014)
• First F125 shell at EMD's La Grange Plant