•YEARS BUILT: 1976-1988
•MANUFACTURERS: Electro-Motive Division of General Motors, GMD of Canada
•OPERATED ON: Amtrak, GO Transit, MBTA, Metra, Via Rail Canada
•NAMES: F40PH, F40PHR, F40PH-2, F40PH-2M, F40PH-2C, F40PHM-2C; nicknames, Winnebago, Screamer, Thunder Box, Thunder Wagon
•QUANTITY: 486
•HORSEPOWER: 3,000
•KNOWN FOR: Mainstay of Amtrak’s locomotive fleet in the 1970s and 1980s
•STATUS: Many sold to metropolitan commuter operations and tourist railroads, and still operate today; still in operation in large quantities on Chicago’s Metra commuter railroad