Libyan Beyer-Garratt Locomotives in Libya
Class Details by Steve Llanso of Sweat House Media
Class 504 (Locobase 9966)
Data from JP Crozet's Franco-Ethiopian Railway site, [
], last accessed on 21 February 2009; and A[rthur] E[dward] Durrant, Garratt Locomotives of the World (revised edition) (Newton Abbott, UK: David & Charles, 1981), pp 103-104. Ansaldo works numbers 1374-1376.
The three Libyan Garratts were diverted from an order of 6 originally intended for Ethipia (see Locobase 506). This entry describes the three that were diverted to Libya. One of them went down with its ship in the Mediterranean. Durrant wrote that the other two "were so badly damaged by bombing that they were scrapped in 1945.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 504 |
| Locobase ID | 9966 |
| Railroad | Libyan |
| Country | Libya |
| Whyte | 2-8-2+2-8-2 |
| Number in Class | 2 |
| Road Numbers | 504-506 |
| Gauge | 95 cm |
| Number Built | 3 |
| Builder | Ansaldo |
| Year | 1939 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| 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) | 132,277 / 60,000 |
| Engine Weight (lbs / kg) | 191,802 / 87,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 191,802 / 87,000 |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 28 / 14 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 41.30 / 1050 |
| Boiler Pressure (psi / kPa) | 203.10 / 1400 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.96" x 21.65" / 380x550 (4) |
| Tractive Effort (lbs / kg) | 40,507 / 18373.69 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.27 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 32.28 / 3 |
| Evaporative Heating Surface (sq ft / m2) | 1442 / 134 |
| Superheating Surface (sq ft / m2) | 565 / 52.50 |
| Combined Heating Surface (sq ft / m2) | 2007 / 186.50 |
| Evaporative Heating Surface/Cylinder Volume | 163.70 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 6556 |
| Same as above plus superheater percentage | 8392 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |