EMD GP40-2 Diesel-Electric Locomotive
The EMD GP40-2 is a 4-axle diesel road switcher locomotive built by General Motors Electro-Motive Division as part of its Dash 2 line between April 1972 and December 1986. The locomotive's power is provided by an EMD 645E3 16-cylinder engine which generates 3,000 horsepower (2.24 MW).
Standard GP40-2 production totalled 861 units, with 817 built for U.S. railroads, and 44 for Mexican railroads. In addition, three GP40P-2s, passenger versions of the GP40-2, were built for Southern Pacific in 1974, and 279 GP40-2L(W) and GP40-2(W) units, equipped with wide-nosed cabs, were built by General Motors Diesel (GMD), for Canadian National and GO Transit between 1974 and 1976. Of the CN units, 233 were built with a taller and lighter frame to allow for a larger fuel tank. These units were officially classified GP40-2L but are commonly referred to as GP40-2L(W). The balance of CN's fleet, 35 units, and the 11 unit GO Transit fleet, used standard frames and smaller fuel tanks; they are often referred to as GP40-2(W) but are classified as GP40-2. Total production of the GP40-2 and its variations totalled 1,143 units.
Although the GP40-2 was a sales success, it sold fewer units than the earlier GP40 and the contemporary GP38-2 and SD40-2 models. The popularity of high-horsepower 4-axle diesels began to decline with the GP40-2, with 6-axle models gaining in popularity for their superior low-speed lugging performance.
Like the SD40-2 the GP40-2 has a reputation for reliability, and many are still in use. Changes such as the modular electronics system improved reliability over the GP40. Their high power-per-axle rating suited them to high-speed service rather than low-speed drag freights.
With the usual 62:15 gearing (65-70 mph maximum) EMD rated the GP40-2 at 55,400 lb continuous tractive effort; for compatibility with other units, most (all?) had the PF21 module that reduced horsepower below 23 mph, bringing the minimum continuous speed down to 11 mph.
Owner: Atlanta and West Point Rail Road
Owner: Alaska Railroad
Owner: Baltimore and Ohio Railroad
Owner: Boston and Maine Railroad
Owner: Chesapeake and Ohio Railway
Owner: Ferrocarril Chihuahua al Pacífico (Mexico)
Owner: Denver and Rio Grande Western Railroad
Owner: U.S. Department of Transportation
Owner: Detroit, Toledo and Ironton Railroad
Owner: Florida East Coast Railway
Owner: Georgia Railroad
Owner: Kansas City Southern Railway
Owner: Louisville and Nashville Railroad
Owner: Reading Company
Owner: Richmond, Fredericksburg and Potomac Railroad
Owner: St. Louis – San Francisco Railway (“Frisco”)
Owner: St. Louis Southwestern Railway (“Cotton Belt”)
Owner: Seaboard Coast Line Railroad
Owner: Ferrocarril Sonora-Baja California (Mexico)
Owner: Southern Pacific Transportation Company
Owner: Texas, Oklahoma and Eastern Railroad
Owner: Western Maryland Railway
Owner: Western Pacific Railroad
Owner: Western Railway of Alabama
Total Units: 851
Units built by General Motors Diesel, Canada Original Owners
Owner: Canadian National Railway
Owner: GO Transit
Total Units: 279
GP40P-2 Original Owners
Railroad: Southern Pacific Transportation Company
Total Units: 3
EMD GP40-2 Overview
Type and origin
Power type: Diesel-electric
Builder: General Motors Electro-Motive Division, General Motors Diesel (GMD)
Build date: 1972 - 1986
Total produced: 1,143
• AAR B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Prime mover: EMD 645E3
Power output: 3,000 hp (2.24 MW)
Classic Streamliners - TRAINCYCLOPEDIA
A pair of EMD GP40-2 coupled back-to-back for use in remote control switching operations at Tampa, Florida.
By Harvey Henkelman, Attribution, https://commons.wikimedia.org/w/index.php?curid=3001201
Purchases through our Merchant Links and Store help to defray the costs of operating the non-profit Classic Streamliners website, and at no additional cost to you. All of the staff at Classic Streamliners are unpaid volunteers who have all devoted thousands of hours of their own time to bring the site into fruition. We would like to sincerely thank all those who have already helped support this worthy cause. For more information click HERE.
Text: wikipedia.org. Images: Public Domain; http://www.commons.wikimedia.org (unless otherwise specified) and 17 U.S. Code § 107 fair use. References: Lewis, Robert G. The Handbook of American Railroads. New York: Simmons-Boardman Publishing Corporation, 1951, 2nd Edition 1956. Site Map Contact webmaster HERE.