Beyer, Peacock 0-4-0 Locomotives in Great_Britain

Class Details by Steve Llanso of Sweat House Media

Class Dot (Locobase 10795)

Data from Railroad & Engineering Journal, Vol LXI (Vol 1, new series), (October 1887), p. 453. Works number was 2817.

Forney identified this little engine as "The Smallest Locomotive" and it came very close. Its appearance suggested that BP simply lopped off both ends of a standard boiler barrel, then put smaller-diameter tubes in it. It was used to move cars around the builder's plant. See Locobase 9959 for 3 locomotives that went to the Lancashire & Yorkshire at the same time as this was delivered for the Manchester Jubilee celebration.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID10795
RailroadBeyer, Peacock
CountryGreat Britain
Number in Class1
Road Numbers
Gauge18 in
Number Built1
BuilderBeyer, Peacock
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 2.75 / 0.84
Engine Wheelbase (ft / m) 2.75 / 0.84
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 2.75 / 0.84
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)7280 / 3302
Engine Weight (lbs / kg)7280 / 3302
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)7280 / 3302
Tender Water Capacity (gals / ML)30 / 0.11
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)6 / 3
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)16.80 / 427
Boiler Pressure (psi / kPa)170 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)5" x 6" / 127x152
Tractive Effort (lbs / kg)1290 / 585.13
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.64
Heating Ability
Tubes (number - dia) (in / mm)55 - 1.375" / 35
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)2 / 0.61
Firebox Area (sq ft / m2)10.90 / 1.01
Grate Area (sq ft / m2) 1.80 / 0.17
Evaporative Heating Surface (sq ft / m2)50 / 4.65
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)50 / 4.65
Evaporative Heating Surface/Cylinder Volume366.69
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation306
Same as above plus superheater percentage306
Same as above but substitute firebox area for grate area1853
Power L13648
Power MT2209.47

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Wes Barris