Data from A[rthur] E[dward] Durrant, Garratt Locomotives of the World (revised edition) (Newton Abbott, UK: David & Charles, 1981), p. 43, 45.. Works numbers were 2121 in 1929 and 2140 in 1930.
Hands down, these Garratts presented the most unusual appearance of any Garratt. Fully enclosed for roadside tramways.Effecitvely hiding any hint of the Garratt layout, the engines appeared to be large buses complete with flat front windows, lines of windows along each side, and a shroud over the front water tank.
Contrary to their appearance, however, the pair hauled loads of sugar beets, clay, or coal on the Tongres-Mauseik and Vroenha\uven-St Trond lines. Train loads amounted to 175 tons up a 1 1/2-mile (2.4 km) 2% grade at 12 1/2 mph (20 kph). The alignment was pinched by a minium curve radius of 98 ft as it wound along many of the highways of Belgium.
Apparently unsuccessful, both tram Garratts had been mothballed by 1933.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 850 |
Locobase ID | 557 |
Railroad | SNCFV |
Country | Belgium |
Whyte | 0-6-0+0-6-0 |
Number in Class | 2 |
Road Numbers | 850, 851 |
Gauge | Metre |
Number Built | 2 |
Builder | SA Saint Leonard |
Year | 1929 |
Valve Gear | |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 21.33 / 6.50 |
Engine Wheelbase (ft / m) | 45.58 / 13.89 |
Ratio of driving wheelbase to overall engine wheelbase | 0.47 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 22,046 / 10,000 |
Weight on Drivers (lbs / kg) | 127,890 / 58,010 |
Engine Weight (lbs / kg) | 127,890 / 58,010 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 900 / 3.41 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.80 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 36 / 18 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 33.50 / 851 |
Boiler Pressure (psi / kPa) | 188.50 / 1300 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14.17" x 13.78" / 360x350 (4) |
Tractive Effort (lbs / kg) | 26,467 / 12005.24 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.83 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 154 - 1.61" / 41 |
Flues (number - dia) (in / mm) | 24 - 4.33" / 110 |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 85.40 / 7.94 |
Grate Area (sq ft / m2) | 22.30 / 2.07 |
Evaporative Heating Surface (sq ft / m2) | 1130 / 105.02 |
Superheating Surface (sq ft / m2) | 200 / 18.59 |
Combined Heating Surface (sq ft / m2) | 1330 / 123.61 |
Evaporative Heating Surface/Cylinder Volume | 224.64 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4204 |
Same as above plus superheater percentage | 4834 |
Same as above but substitute firebox area for grate area | 18,513 |
Power L1 | 7024 |
Power MT | 726.50 |