Altdamm-Kolberger 0-6-0 Locomotives in Germany

Class Details by Steve Llanso of Sweat House Media

Class 15/T3/BR 89 7250 (Locobase 21041)

Data from "3/3 gek. Tender-lokomotiven Altdamm-Kolberger Eisenbahn", Locomotiven, A Borsig (Tegel bei Berlin, 1898), archived on Historical Railway Images, Flickr, at [], last accessed 8 July 2022, supplemented by Albert Gieseler, "Baureihe 89.72" on his Dampfmaschinen und Lokomotiven website at [], last accessed 9 July 2022. Works numbers were 4684-4686 in 1892.

Beginning in 1880, a consortium of the Prussian state, several districts and towns, and private interests funded the construction of a line between the Altdamm junction of the Stetttin Stargard main line and the seacoast time of Colberger (Kolberger by 1899) some 122 km distant.

The need for the line seems to have been met in shortening the route between them by 50 km (31 miles). Principal traffic included livestock and agricultural products as well as passenger service.

This standard-gauge railway continued to grow until its various branches and extensions totalled 179 km (111 miles) by 1899. By that time, the ACE had purchased this three-engine class of T3 six-coupled tanks, of which several dozen had already been produced by various builders. (See Locobase 1285 for comments on the affection accorded this little tank-engine design.)

The ACE's extent seems to have been sufficient to prompt shareholder Prussia to gain a majority and put the line under the Prussian State Railways in 1903.

Principal Dimensions by Steve Llanso of Sweat House Media

Class15/T3/BR 89 7250
Locobase ID21041
Number in Class3
Road Numbers15-17/89 1748-1750
Number Built3
Valve GearAllan
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.84 / 3
Engine Wheelbase (ft / m) 9.84 / 3
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 9.84 / 3
Axle Loading (Maximum Weight per Axle) (lbs / kg)23,589 / 10,700
Weight on Drivers (lbs / kg)70,107 / 31,800
Engine Weight (lbs / kg)70,107 / 31,800
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1056 / 4
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1 / 0.90
Minimum weight of rail (calculated) (lb/yd / kg/m)39 / 19.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44.50 / 1130
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)13.78" x 21.65" / 350x550
Tractive Effort (lbs / kg)13,664 / 6197.89
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.13
Heating Ability
Tubes (number - dia) (in / mm)132 - 1.811" / 46
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.63 / 3.24
Firebox Area (sq ft / m2)60.28 / 5.60
Grate Area (sq ft / m2)14.53 / 1.35
Evaporative Heating Surface (sq ft / m2)646 / 60.02
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)646 / 60.02
Evaporative Heating Surface/Cylinder Volume172.86
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2528
Same as above plus superheater percentage2528
Same as above but substitute firebox area for grate area10,489
Power L13272
Power MT308.68

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Wes Barris