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Steam
Tender Locomotives with up to Two Coupled Axles
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0-8-0 „Eight-Coupled”
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French State Railway 141 R
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Page views since 2023-01-26: 2176604
German Reichsbahn class 41
Polish State Railways Ot1
go back
Germany | 1937
366 produced
41 1231 in April 2016 in the traditional depot in Stassfurt
41 1231 in April 2016 in the traditional depot in Stassfurt
Rainer Haufe

The wheel arrangement 2-8-2 was chosen for fast freight trains in order to be able to achieve the required power with an axle load of 18 tonnes. With a driving wheel diameter of 1,600 mm, 90 km/h could be achieved and the axle load of the driving wheels could be changed to 20 tonnes by switching the position of bolts. The boiler pressure was initially 20 bars, but had to be reduced to 16 bars because of the problems with the St 47 K alloy. After the war, the Reichsbahn and the Bundesbahn fitted their class 41 locomotives with new boilers. They were in use in the GDR until 1988. So far there is only a short text for this vehicle. In the future it will be described in more detail.

Variantas builtreduced boiler pressurerebuilt Bundesbahnrebuilt Reichsbahn
General
Built1937-19411957-19611959-1960
ManufacturerBMAG, Borsig, Esslingen, Henschel, Jung, Krauss-Maffei, Krupp, O&K, SchichauRAW Zwickau, RAW Karl-Marx-Stadt
Axle config2-8-2 (Mikado) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length78 ft 5 1/8 in
Wheelbase39 ft 6 7/16 in
Rigid wheelbase18 ft 2 1/2 in
Total wheelbase66 ft 2 5/16 in
Empty weight204,148 lbs
Service weight224,651 lbs241,692 lbs227,517 lbs
Adhesive weight154,323 lbs171,475 lbs173,724 lbs
Total weight388,234 lbs365,967 lbs391,100 lbs
Axle load40,124 lbs42,869 lbs43,431 lbs
Water capacity8,982 us gal
Fuel capacity22,046 lbs (coal)3,170 us gal (oil)22,046 lbs (coal)
Boiler
Grate area41.9 sq ft41.7 sq ft45.5 sq ft
Firebox area171.1 sq ft228.4 sq ft229.3 sq ft
Tube heating area2,015.5 sq ft1,682.6 sq ft1,991.3 sq ft
Evaporative heating area2,186.7 sq ft1,911 sq ft2,220.6 sq ft
Superheater area777.4 sq ft1,030.9 sq ft902 sq ft
Total heating area2,964.1 sq ft2,941.9 sq ft3,122.6 sq ft
Variantas builtreduced boiler pressurerebuilt Bundesbahnrebuilt Reichsbahn
Power Plant
Driver diameter62.99 in
Boiler pressure290 psi232 psi
Expansion typesimple
Cylinderstwo, 20 1/2 x 28 3/8 in
Power
Power sourcesteam
Indicated power1,873 hp (1,397 kW)1,949 hp (1,453 kW)1,923 hp (1,434 kW)
Estimated power2,179 hp (1,625 kW)
Top speed56 mph
Starting effort46,504 lbf37,207 lbf
Calculated Values
Optimal speed30 mph32 mph33 mph
steam locomotive
freight
last changed: 02/2023
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