The EMD F40PH is a four-axle 3,000–3,200 hp (2.2–2.4 MW) B-B diesel-electric locomotive built by General Motors Electro-Motive Division in several variants from 1975 to 1992.

Built around EMD’s venerable 16-cylinder 645E3 power plant, the F40PH was rated at 3000 HP, but they featured a unique control system to allow them to provide head-end power. The F40’s alternator for the HEP was driven directly off the prime mover, and in order to supply power at the correct 480V and 60Hz, it had to run at exactly 896 RPM.

2025年2月26日 · Electro-Motive's F40PH series became the face of Amtrak for more than two decades. The model was originally designed to operate in commuter and short haul service. However, the SDP40F's failure prompted Amtrak to look elsewhere for a long-haul road locomotive. In response, EMD redesigned the F40PH.

EMD F40PH ; Data Sheet Information Compiled by: JEAN-DENIS BACHAND: New: 22 July 2006 : Artwork by: Jean-Denis Bachand-Engine Builder: EMD: Engine: 645E3 16 cylinder: Bore & Stroke: 8.5" X 10" RPM (Maximum / Minimum) 800 / 275 : Main Generator: GM - AR10: Horsepower: 3000: Gear Ratio: 59:15 :

The EMD F40PH, a four-axle passenger locomotive with a power output of 3,000 to 3,200 hp, was developed by General Motors' Electro-Motive Division. This model's inception dates back to May 8, 1975, when Amtrak placed an order for the first 30 F40PH units following the unsuccessful deployment of...

The EMD F40PH is a four-axle 3,000–3,200 hp (2.2–2.4 MW) B-B diesel-electric locomotive built by General Motors Electro-Motive Division in several variants from 1975 to 1992.

The General Motors Electro-Motive Division F40PH series is a 4-axle lightweight diesel-electric locomotive originally designed for service with Amtrak. Built from 1975 to the early 2000's, it was essentially a GP40-2 with a full-width body on the shorter GP35 frame, although over time the design, both in appearance and mechanically, evolved ...

2021年6月3日 · F40PH 134 wears the livery of today’s Metra, while its two sisters still are outfitted in their original RTA colors. Photograph by Gary Dolzall. The versatile EMD F40PH became the diesel locomotive of choice among many U.S. commuter operators in …

2025年2月24日 · The F40PH is a diesel-electric locomotive primarily operated by AMTRAK for short-ranged passenger railway service. It is based in the EMD GP40-2 freight hauler which began appearing in 1972 and were built in over 1,100 examples.

SPECS: Built by EMD, these units boasted a 3000 horsepower prime mover and were equipped with HEP (Head End Power) Generators and DC Traction Motors. The F40's were also the first such units that Amtrak owned that had HEP capability built in.