Data from Wikipedia at []; and A E Durrant The Steam Locomotives of Eastern Europe (Newton Abbot:David & Charles, 1966), pp 25, 40.
Principal Dimensions by Steve Llanso of Sweat House Media | |
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Class | 242 |
Locobase ID | 1549 |
Railroad | Magyar Allamvasutak (MAV) |
Country | Hungary |
Whyte | 4-4-4T |
Number in Class | 4 |
Road Numbers | 242.001-242.004 |
Gauge | Std |
Number Built | 4 |
Builder | MAVAG |
Year | 1936 |
Valve Gear | Heusinger |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | 34.71 / 10.58 |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | 34.71 / 10.58 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 32,187 / 14,600 |
Weight on Drivers (lbs / kg) | 64,375 / 29,200 |
Engine Weight (lbs / kg) | 188,275 / 85,400 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 188,275 / 85,400 |
Tender Water Capacity (gals / ML) | 2640 / 10 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.40 / 5 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 54 / 27 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 78.70 / 1999 |
Boiler Pressure (psi / kPa) | 261.10 / 18 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16.93" x 25.59" / 430x650 |
Tractive Effort (lbs / kg) | 20,684 / 9382.12 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.11 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 133.47 / 12.40 |
Grate Area (sq ft / m2) | 29.60 / 2.75 |
Evaporative Heating Surface (sq ft / m2) | 1673 / 155.43 |
Superheating Surface (sq ft / m2) | 379 / 35.21 |
Combined Heating Surface (sq ft / m2) | 2052 / 190.64 |
Evaporative Heating Surface/Cylinder Volume | 250.92 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 7729 |
Same as above plus superheater percentage | 9120 |
Same as above but substitute firebox area for grate area | 41,122 |
Power L1 | 29,542 |
Power MT | 2023.42 |