Class P locomotives were numbered from 301 to 321. Schenectady Locomotive Works delivered builders numbers 4471 through 4475 in 1896, 5151 and 5152 in 1899, and 5418, 5419, 5567, 5568 and 5674 through 5677 in 1900. American Locomotive Company produced the last six of the class at their Manchester plant in 1902. Builders numbers 25442 through 25445 were 7,600lb (3.4 tonnes) heavier than the Schenectady locomotives and generated 1,300lbf (5.8kN) more tractive effort. Builders numbers 26307 and 26308 were built as Portland and Rumford Falls Railway (P&RF) numbers 13 and 14. The P&RF engines which became Maine Central numbers 320 and 321 were 21,000lb (9.5 tonnes) heavier than the infobox specifications and generated 8,800lbf (39.1kN) more tractive effort. They also had larger tenders increasing total weight to 262,000lb (118.8 tonnes).[1]
References
1 2 3 Robertson, Edwin B. (1977). Maine Central Steam Locomotives. Westbrook, Maine: Edwin B. Robertson. pp.30–33.
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