Data from [], accessed 7 July 2007, supplement by [], last accessed 14 May 2011.
One of the O & K standard 6-coupleds had several variations of cylinder volume to go under a common boiler design. 8538 shows the 1908 version with a longer stroke; this variant is smaller and lighter (and older). Both arrived on the KLP in 1906. 21 (works #2087) was dubbed HEINZ and 22 (works #2129) bore the name D+RFEL.
HEINZ was turned over to the Soviet Union in 1945 as a war reparation. D+RFEL was given a DDR DRG number in 1949, but it operated on the same tracks for all 60 years before its retirement in 1966.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 21 / BR 99 4504 |
Locobase ID | 8542 |
Railroad | Kleinbahn Lindenberg-Pritzwalk (KLP) |
Country | Germany |
Whyte | 0-6-0ST |
Number in Class | 2 |
Road Numbers | 21-22 / 99 4504 |
Gauge | 75 cm |
Number Built | 2 |
Builder | Orenstein & Koppel |
Year | 1906 |
Valve Gear | Allan |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 6.23 / 1.90 |
Engine Wheelbase (ft / m) | 6.23 / 1.90 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 6.23 / 1.90 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 34,172 / 15,500 |
Engine Weight (lbs / kg) | 34,172 / 15,500 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 34,172 / 15,500 |
Tender Water Capacity (gals / ML) | 462 / 1.75 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.90 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 19 / 9.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 29.50 / 750 |
Boiler Pressure (psi / kPa) | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 11.81" x 13.78" / 300x350 |
Tractive Effort (lbs / kg) | 9636 / 4370.82 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.55 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 98 - 1.772" / 45 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 7.87 / 2.40 |
Firebox Area (sq ft / m2) | 31.74 / 2.95 |
Grate Area (sq ft / m2) | 6.46 / 0.60 |
Evaporative Heating Surface (sq ft / m2) | 355 / 33 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 355 / 33 |
Evaporative Heating Surface/Cylinder Volume | 203.19 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1124 |
Same as above plus superheater percentage | 1124 |
Same as above but substitute firebox area for grate area | 5523 |
Power L1 | 2515 |
Power MT | 486.77 |