•YEARS BUILT: 1902 to 1948
•MANUFACTURERS: Alco, Baldwin, Lima, Santa Fe, Baltimore & Ohio, Canadian Locomotive Co., Chicago Great Western, Milwaukee Road, Delaware & Hudson, Great Northern, Illinois Central, Lehigh Valley, Louisville & Nashville, New York Central, Norfolk & Western, Pennsylvania, Reading, Southern Pacific, Wabash
•OPERATED ON: Most railroads that offered any substantive passenger service
•NAME: Pacific
•QUANTITY: 75,000; Pennsylvania Railroad had the most with almost 700
•BOILER PRESSURE: 200 psi
•KNOWN FOR: Moving passenger trains at speed
•STATUS: Many preserved and several still operable
This is the primary steam type that the major Class I roads loved to cover with streamlined shrouds to act as advertising for speedy passenger service.