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Steam
Tender Locomotives with up to Two Coupled Axles
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0-6-0 “Six-coupled”
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Alsace-Lorraine S 12
Atlanta & West Point class P-74
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Baltimore & Ohio class P-7
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Belgian Railway type 10
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British Rail Standard class 7MT “Britannia”
Canadian Pacific class G3
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Central South African class 10
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Federated Malay States class H
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French State Railway (État) 231-501 to 783
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German Reichsbahn 07 1001
German Reichsbahn 18 201
German Reichsbahn class 01
German Reichsbahn class 0110
German Reichsbahn class 015
German Reichsbahn class 02
German Reichsbahn class 03
German Reichsbahn class 0310
German Reichsbahn class 04
German Reichsbahn H 02 1001
Grand Trunk class K-3
Great Western Railway No. 111 “The Great Bear”
Illinois Central class 1139
Imperial-Royal State Railways class 210
Imperial-Royal State Railways class 310
Indian Railways class WP
Italian State Railway class 690 II
Italian State Railway class 691
Japanese National Railways classes C59 and C60
Lehigh Valley class K-6b
Leopoldina No. 306 to 333
Little River Railroad No. 110
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London & North Eastern Gresley classes A1 and A3
London & North Eastern Peppercorn class A1
London, Midland & Scottish Coronation class
Louisville & Nashville class K-2
Maine Central classes C, C1 and C2
Maine Central classes C-3 and C-3B
Missouri Pacific class P-69
New York Central class K-3
New York Central class K-5
New Zealand Railways class AB
New Zealand Railways class Q (1901)
New Zealand Railways classes A and AD
Paris-Lyon-Méditerranée No. 6001, 6011 to 6030 and 6221 to 6285
Paris-Orléans No. 3701 to 3731
Paris-Orléans No. 4501 to 4600
Pennsylvania class K4s
Rede de Viação Cearense class 400
Santa Fe class 3400
Saxon XVIII H
Soo Line classes H-3 and H-21 to H-23
South African class 5 “Enlarged Karoo”
South Manchurian Railway Pashiko class
South Manchurian Railway Pashina class
South Manchurian Railway Pashiro class
South Manchurian Railway Pashisa and Pashiha class
Southern Railway (UK) Merchant Navy class
Southern Railway (UK) West Country and Battle of Britain classes
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US Railroad Administration Heavy Pacific
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Western Maryland class K-2
Württemberg C
4-6-4 “Hudson”, “Baltic”
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Page views since 2023-01-26: 1610589
Illinois Central class 1139
go back
United States | 1916
65 produced
No. 1155 in March 1949 after the main drivers had been replaced with disc wheels
No. 1155 in March 1949 after the main drivers had been replaced with disc wheels
collection Mary Rae McPherson

The class 1139 of the Illinois Central consisted of 65 Pacifics which came after the 70 class 1069 locomotives from 1910. They had 75 inch drivers and 26 by 28 inch cylinders. 20 each were delivered in 1916 and 1918 by ALCO-Brooks and 25 more in 1920 by ALCO-Schenectady. The specs in the table are for the 25 last locomotives which had two fewer tubes and a heating area that was 20 square feet smaller compared to the first 40. In the forties, they received disc wheels for the main driving axle and the air compressors have been relocated. So far there is only a short text for this vehicle. In the future it will be described in more detail.

General
Built1916, 1918, 1920
ManufacturerALCO
Axle config4-6-2 (Pacific) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase34 ft 4 in
Rigid wheelbase13 ft
Total wheelbase67 ft 0 1/2 in
Service weight280,000 lbs
Adhesive weight169,500 lbs
Total weight462,200 lbs
Axle load56,500 lbs
Water capacity9,000 us gal
Fuel capacity30,000 lbs (coal)
Boiler
Grate area55 sq ft
Firebox area244.2 sq ft
Tube heating area3,380.8 sq ft
Evaporative heating area3,625 sq ft
Superheater area826 sq ft
Total heating area4,451 sq ft
Power Plant
Driver diameter75 in
Boiler pressure190 psi
Expansion typesimple
Cylinderstwo, 26 x 28 in
Power
Power sourcesteam
Estimated power2,050 hp (1,529 kW)
Optimal speed32 mph
Starting effort40,758 lbf
Calculated Values
steam locomotive
express
last changed: 12/2024
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