Londonderry & Lough Swilly 4-6-0 Locomotives in Ireland


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 2694)

These lightweight tanks -- Barclay works #933-936 -- operated on the Letterkenny & Burtonport Extension Railway, part of the L&LS.

#1 was scrapped in 1940, #4 in 1953, and the other two in 1954.

Principal Dimensions by Steve Llanso of Sweat House Media

Classunknown
Locobase ID2694
RailroadLondonderry & Lough Swilly
CountryIreland
Whyte4-6-0T
Number in Class4
Road Numbers1-4
Gauge3'
Number Built4
BuilderAndrew Barclay
Year1902
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.50
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)
Engine Weight (lbs / kg)67,200 / 30,481
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)67,200 / 30,481
Tender Water Capacity (gals / ML)600
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)14" x 20" / 356x508
Tractive Effort (lbs / kg)11,900 / 5397.76
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.34
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2) 9.30
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1395
Same as above plus superheater percentage1395
Same as above but substitute firebox area for grate area
Power L1
Power MT

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