Data from Gustav Reder (Michael Reynolds, trans), The World of Steam Locomotives (New York: Putnam, 1974), pp 98, 321; and "Locomotives", Type 14, Usines du Creusot-Schneider et Cie (Creusot: A Temporal, 1875), n.a. Works numbers were 33-37 in 1846.
Typical of the "longboilered" 2-4-0s popular in France during the 1840s and 1850s, LA HYENE had outside cylinders (and inside valve motion), a "gothic" (i.e. pyramidal) firebox, slotted splashers over the driving wheels, and a tall stack. (Note: Gustav Reder's data matched the Schneider catalogue's Type 14 in most respects. One significant difference appears in the driver diameter, with La Hyene's drivers measuring 400 mm taller than those of the Type 14. )
Longboilers became known as unsteady riders due to the overhang at the front of the engine. Because they ran at a relatively slow speed (48 kph/30 mph), however, their adequate tractive effort and short wheel base outweighed this "hunting" tendency.
The last of these 15 engines was scrapped in 1880.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | La Hyene |
| Locobase ID | 612 |
| Railroad | Centre/Paris-Orleans |
| Country | France |
| Whyte | 2-4-0 |
| Number in Class | 15 |
| Road Numbers | 54-58/ 345-359 |
| Gauge | Std |
| Number Built | 15 |
| Builder | Schneider-Creusot |
| Year | 1846 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 10.27 / 3.13 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 37,038 / 16,800 |
| Engine Weight (lbs / kg) | 48,502 / 22,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 31 / 15.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 55.10 / 1400 |
| Boiler Pressure (psi / kPa) | 84.10 / 580 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.96" x 23.62" / 380x600 |
| Tractive Effort (lbs / kg) | 6858 / 3110.74 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.40 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 132 - 1.89" / 48 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.34 / 3.76 |
| Firebox Area (sq ft / m2) | 53.82 / 5 |
| Grate Area (sq ft / m2) | 9.04 / 0.84 |
| Evaporative Heating Surface (sq ft / m2) | 808 / 75.05 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 808 / 75.05 |
| Evaporative Heating Surface/Cylinder Volume | 168.15 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 760 |
| Same as above plus superheater percentage | 760 |
| Same as above but substitute firebox area for grate area | 4526 |
| Power L1 | 1731 |
| Power MT | 206.07 |