EMD F125

EMD F125

A Metrolink F125 nearing completion
Type and origin
Power type Diesel-electric
Builder Electro-Motive Diesel, Caterpillar, Inc., Progress Rail Services
Order number Metrolink: 40
Build date 2015-present
Specifications
AAR wheel arr. B-B
UIC class 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)[1]
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 EMD F125

The EMD F125 Spirit is a four-axle passenger diesel locomotive manufactured by EMD for the North American market. It is powered by a Caterpillar C175-20 V20 diesel engine rated at 4,700 hp (3,500 kW). The locomotive is capable of traveling at a maximum in-service speed of 125 mph (201 km/h) pulling consists of up to 10 cars. It is EMD's first new passenger locomotive since the EMD DE30AC and DM30AC, and EMD's first domestic passenger locomotive in 15 years.

Features of the F125 include EPA Tier 4 emissions compliance (with exhaust after-treatment), AC traction systems, extended-range blend and dynamic brakes with HEP regeneration capabilities, advanced crash energy management (CEM) technology, and a streamlined body design, designed by Vossloh Rail Vehicles of Spain.[2]

Operators

The Los Angeles commuter rail agency Metrolink is the launch customer for the EMD F125, with a fleet plan to order up to 40 F125s total. The cost of the base order of 10 units with an option of additional 10 is estimated at $150 million, with delivery expected to commence in 2016.[3][4] The base order was signed on May 31, 2013 for 10 locomotives with an option for additional 10, [5] which had since exercised.[6] Additional orders would be exercised as funding become available. They will replace the EMD F59PH and EMD F59PHI.

The first locomotive has been delivered to Metrolink, and began testing in the first quarter of 2016. The bulk of the order is expected to be delivered by April 2017.[7][8] The first locomotive, SCAX 905, was unveiled on July 18, 2016 at Los Angeles Union Station during a special event.

See also

References

  1. ↑ "C175-20 Prime Mover Specifications". Caterpillar Inc. n.d.
  2. ↑ "EMD F125 specifications". EMD. n.d.
  3. ↑ Bowen, Douglas John (December 20, 2012). "EMD gets Metrolink Tier 4 locomotive order". Railway Age. Retrieved May 27, 2016.
  4. ↑ "Metrolink to buy newest, cleanest locomotives" (Press release). Los Angeles: Metrolink. December 18, 2012.
  5. ↑ "Metrolink orders EMD passenger locomotives". Railway Gazette International. June 1, 2013.
  6. ↑ "Metrolink receives critical funding commitments for low-emission Tier 4 locomotives" (Press release). Los Angeles: Metrolink. February 10, 2014.
  7. ↑ Jeon, Yena (January 24, 2014). "F125 Tier-4 EMD Status Report". Metrolink. Retrieved May 27, 2016.
  8. ↑ "First Metrolink Tier 4 locomotive completed" (Press release). Los Angeles: Metrolink. January 29, 2016.

External links

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