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German Reichsbahn class 87
Germany | 1927 | 16 produced
87 008 in 1928 in Hamburg-Wilhelmsburg
87 008 in 1928 in Hamburg-Wilhelmsburg
Werner Hubert

Since the port of Hamburg was significantly lower than the Reichsbahn facilities, Orenstein & Koppel were ordered to build a powerful tank locomotive in 1927. With a maximum axle load of 17.5 tonnes, five coupled axles were required for the required traction, while curves with a radius of 100 meters had to be negotiated.

With the locomotive developed in this way, only the inner three axles were connected with coupling rods. The first and last axles were designed as Luttermöller axles, i.e. they could be moved sideways and were driven by gears. When the Luttermöller drives failed, the locomotives continued to be used with the wheel arrangement 2-8-0T, 0-8-2T or 2-6-2T.

The locomotives could pull 1,510 tonnes at 45 km/h and 2,250 tonnes at 35 km/h on the level. At one percent, it was still 1,120 tonnes at 15 km/h. The area of operation remained in Hamburg over their entire service life. They were replaced from 1951 by the class 82, which also was ten-coupled but was simpler in design. The last example was scrapped in 1961.

General
Built1927-1928
ManufacturerO&K
Axle config0-10-0T (Ten-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length43 ft 7 5/8 in
Wheelbase20 ft 4 1/8 in
Fixed wheelbase11 ft 1 7/8 in
Empty weight149,914 lbs
Service weight188,715 lbs
Adhesive weight188,715 lbs
Axle load38,360 lbs
Water capacity2,378 us gal
Fuel capacity6,614 lbs (coal)
Power
Power sourcesteam
Indicated power927 hp (691 kW)
Optimal speed12 mph
Top speed28 mph
Starting effort48,166 lbf
Power Plant
Driver diameter43.3 in
Boiler pressure203 psi
Expansion typesimple
Cylinderstwo, 23 5/8 x 21 5/8 in
Boiler
Grate area25.7 sq ft
Firebox area107.6 sq ft
Tube heating area1,155.7 sq ft
Evaporative heating area1,263.4 sq ft
Superheater area505.9 sq ft
Total heating area1,769.3 sq ft
Calculated Values
steam locomotive
freight
tank locomotive
last changed: 01/2023
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