Data from the First Romanian railway club ([] -- visited 14 Jan 2004). Considerably more data came from [] (the Kluetzer museum railway site visited 11 July 2004 and 19 March 2005).
The First Romanian site explains that a small and agile locomotive was needed for short-haul service. Among the limitations were a 12-metric ton axle loading and a wheelbase able to handle tight curves.
The website proudly notes that this was a wholly Romanian design. The first prototype steamed quite well, achieving superheat of 400 deg C and the class proved able to haul 455 tons up a 1% grade at 25 km/h (16 mph), 100 tons more than the Hungarian-built Class 375s could accomplish.
Resita turned out 66 more in 1940-1942. They operated until 1975-1976 on CFR lines with some going to industrial lines for many years of additional service.
NB: The direct heating surface (including the firebox heating surface) is an estimate calculated by subtracting the calculated tube heating surface from the reported total evaporative heating surface.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 131.001 |
Locobase ID | 5876 |
Railroad | Caile Ferate Romane (CFR) |
Country | Romania |
Whyte | 2-6-2T |
Number in Class | 67 |
Road Numbers | 131.001-131.067 |
Gauge | Std |
Number Built | 67 |
Builder | Resita |
Year | 1939 |
Valve Gear | Trick |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 9.84 / 3 |
Engine Wheelbase (ft / m) | 26.90 / 8.20 |
Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
Overall Wheelbase (engine & tender) (ft / m) | 26.90 / 8.20 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 26,455 / 12,000 |
Weight on Drivers (lbs / kg) | |
Engine Weight (lbs / kg) | 135,805 / 61,600 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 135,805 / 61,600 |
Tender Water Capacity (gals / ML) | 1848 / 7 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.40 / 4 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 47.20 / 1199 |
Boiler Pressure (psi / kPa) | 203.10 / 1400 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16.54" x 23.62" / 420x600 |
Tractive Effort (lbs / kg) | 23,634 / 10720.21 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
Heating Ability | |
Tubes (number - dia) (in / mm) | 60 - 2.165" / 55 |
Flues (number - dia) (in / mm) | 20 - 5.394" / 137 |
Flue/Tube length (ft / m) | 13.94 / 4.25 |
Firebox Area (sq ft / m2) | 75 / 6.97 |
Grate Area (sq ft / m2) | 24.21 / 2.25 |
Evaporative Heating Surface (sq ft / m2) | 939 / 87.27 |
Superheating Surface (sq ft / m2) | 362 / 33.64 |
Combined Heating Surface (sq ft / m2) | 1301 / 120.91 |
Evaporative Heating Surface/Cylinder Volume | 159.86 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4917 |
Same as above plus superheater percentage | 6294 |
Same as above but substitute firebox area for grate area | 19,498 |
Power L1 | 12,436 |
Power MT |