Maine Central class S 2-8-2

Maine Central class S
Maine Central class S
	USRA Light Mikado of sub-class S-1
Power type
Type and origin
	Reference:
Power type	Steam
Builder	ALCO
Build date	1914–1924
Total produced	32
Configuration:;
Specifications
Configuration:;
• Whyte	2-8-2
• UIC	1'D1'
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	33 in (838 mm)
Driver dia.	63 in (1,600 mm)
Trailing dia.	44 in (1,118 mm)
Wheelbase	34 ft 9 in (10.59 m)
Length	77 ft 9 in (23.70 m) including tender
Height	14 ft 7+1⁄2 in (4.46 m)
Loco weight	275,000 lb (124.7 tonnes)
Total weight	431,000 lb (195.5 tonnes)
Fuel type	Coal
Fuel capacity	14 t
Water cap.	8,000 US gal (30 m3)
Firebox:
• Grate area	56.5 sq ft (5.25 m2)
Boiler pressure	180 lbf/in2 (13 kg/cm2)
Cylinders	Two
Cylinder size	26.5 in × 30 in (673 mm × 762 mm)
Valve gear	Walschaerts
Tractive effort
Performance figures
Tractive effort	51,200 lbf (227.7 kN)
Retired
Career
Retired	1953
Disposition	All Scrapped

Power typeSteam

BuilderALCO

Build date1914–1924

Maine Central Railroad Class S locomotives were intended for heavy freight service. They were of 2-8-2 wheel arrangement in the Whyte notation, or " 1'D1' " in UIC classification. They replaced earlier class W 2-8-0 locomotives beginning in 1914. They were the largest and most modern steam freight locomotives built for Maine Central; although former Boston and Maine Railroad 2-10-2s were later purchased to handle World War II freight traffic.^[1] Class S locomotives pulled freight trains over the main line between Portland and Bangor, Maine; and are best remembered for service on the Mountain Division from 1929, when the class X Mallet locomotives were scrapped, until replacement by diesel locomotives in the early 1950s.^[2]

v t e Maine Central Railroad Company
Lines	Main Line Bar Harbor Beecher Falls Belfast Bingham Brunswick Bucksport Calais Eastport Farmington Foxcroft Harmony Hartland Kineo Lewiston Livermore Falls Mountain Princeton Rangeley Rockland Rumford Skowhegan Vanceboro
Subsidiaries	Bridgton and Saco River Railroad Northeast Airlines Portland Terminal Company Sandy River and Rangeley Lakes Railroad
Named Trains	Bar Harbor Express Down Easter Flying Yankee Gull Penobscot Pine Tree
Steam Locomotives	Class C 4-6-2 470 Class H 4-4-0 Class K 0-6-0 Class L 4-4-0 Class M 2-6-0 Class N 4-6-0 Class O 4-6-0 Class P 2-6-0 Class S 2-8-2 Class W 2-8-0 501 519
Diesel Locomotives	Class DF EMD F3 Class DP EMD E7 Class DRS road switcher Class DS-1 yard switcher Class DS-4 branch line switcher

Replacement