Airservice Construction Corps 0-4-0 Locomotives in Great_Britain


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 4919)

Data from [link], last accessed 20 April 2018.

This tiny well tanker served the RAF until 1945 at Calshot Spit, Southampton. Talyllyn Railway in western Wales received it as a gift in 1953. According to [link] website, an overhaul changed the gauge to the Talyllyn's 2'3". The locomotive entered service in 1954 dubbed "Douglas".

After a while, Douglas went into reserve, only to be resurrected in 1995, fitted with a new boiler, and a livery representing the Air Ministry Works & Buildings. Talyllyn's website reported that "On 21st February 2018, it was the 100th Birthday of 'Douglasñ. To commemorate the centenary a new livery reflecting its RAF heritage was commissioned."

Principal Dimensions by Steve Llanso of Middle Run Media
Classunknown
Locobase ID4919
RailroadAirservice Construction Corps
CountryGreat Britain
Whyte0-4-0WT
Number in Class1
Road Numbers
Gauge2'
Number Built1
BuilderAndrew Barclay
Year1918
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.94 / 1.20
Engine Wheelbase (ft / m) 3.94 / 1.20
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)17,920 / 8128
Engine Weight (lbs / kg)17,920 / 8128
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)15 / 7.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)24 / 610
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)6.88" x 10.75" / 175x273
Tractive Effort (lbs / kg)2883 / 1307.71
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.22
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)
Evaporative Heating Surface (sq ft / m2)130 / 12.08
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)130 / 12.08
Evaporative Heating Surface/Cylinder Volume281.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation
Same as above plus superheater percentage
Same as above but substitute firebox area for grate area
Power L1
Power MT

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