Data from "Lokomotiva serijia 20", Skice I Podatci Lokomotiva (Zagreb: JDZ, 1955), p. 17; and A[nthony] E[dward] Durrant, The Steam Locomotives of Eastern Europe (Newton Abbot:David & Charles, 1966. A[nthony] E[dward] Durrant, The Steam Locomotives of Eastern Europe (Newton Abbot: David & Charles, 1966). Borsig works numbers were 11328-11374 in 1922 (6000-6047), Henchel continued with works numbers 19041-19108 in 1922 (6048-6115), Hanomag works numbers 10012-10037 in 1922 (6118-6141), AEG-Borsig 2459- 2482 (6142-6165), Krauss Munich works numbers 8036-8045 (6166-6175), and Rheinmetall works numbers 518-543 in 1922 (6176-6200).
Another Serbian design adopted and built new. As the production data show, six different builders took a part of the order--four of the established firms and two recent entrees.
Renumbered 20.001-200 in 1933.
(NB: The 1955 JDZ diagram used the 45 mm internal (fire side) diameter for its tube heating surface area calculation. Thus, the THS came to 102.4 sq m (1,102 sq ft), which combined with direct heating surface area to equal 116.6 sq m (1,255 sq ft). Locobase uses the external (water side diameter provided in the diagram to simplify comparisons with the Anglo-American preference for the external diameter.)
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 6000/20 |
Locobase ID | 1717 |
Railroad | Yugoslav State (JDZ) |
Country | Yugoslavia |
Whyte | 2-6-0 |
Number in Class | 200 |
Road Numbers | 6000-6200/20.001-20.200 |
Gauge | Std |
Number Built | 200 |
Builder | several |
Year | 1922 |
Valve Gear | Heusinger |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 12.14 / 3.70 |
Engine Wheelbase (ft / m) | 20.18 / 6.15 |
Ratio of driving wheelbase to overall engine wheelbase | 0.60 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 30,865 / 14,000 |
Weight on Drivers (lbs / kg) | 92,594 / 42,000 |
Engine Weight (lbs / kg) | 116,404 / 52,800 |
Tender Loaded Weight (lbs / kg) | 105,822 / 48,000 |
Total Engine and Tender Weight (lbs / kg) | 222,226 / 100,800 |
Tender Water Capacity (gals / ML) | 5280 / 20 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 8.80 / 8 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 53.10 / 1349 |
Boiler Pressure (psi / kPa) | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 20.51" x 24.8" / 521x630 |
Tractive Effort (lbs / kg) | 29,057 / 13180.05 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.19 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 97 - 1.969" / 50 |
Flues (number - dia) (in / mm) | 24 - 5.157" / 131 |
Flue/Tube length (ft / m) | 14.76 / 4.50 |
Firebox Area (sq ft / m2) | 152.85 / 14.20 |
Grate Area (sq ft / m2) | 25.94 / 2.41 |
Evaporative Heating Surface (sq ft / m2) | 1369 / 127.20 |
Superheating Surface (sq ft / m2) | 393 / 36.50 |
Combined Heating Surface (sq ft / m2) | 1762 / 163.70 |
Evaporative Heating Surface/Cylinder Volume | 144.36 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4514 |
Same as above plus superheater percentage | 5507 |
Same as above but substitute firebox area for grate area | 32,447 |
Power L1 | 9207 |
Power MT | 657.64 |