Stockton & Darlington 0-4-0 Locomotives in Great_Britain


Class Details by Steve Llanso of Sweat House Media

Class Dart (Locobase 10240)

Data from "Early Stockton & Darlington Locomotives," Locomotive Magazine, Vol VII (November 1902), pp. 184-185.

The engine is described as having been delivered with 12" x 18" cylinders and a boiler pressed to 60 psi. The specifications refer to the locomotive as it was when displayed at the S & D's 50th-anniversary celebration in 1875. By then it had a tall dome placed well forward, splashers over the upper arc of the wheels, a windscreen with square lights, and a short tender.


Class Huddersfield (Locobase 10255)

Data from "Early Stockton & Darlington Locomotives", The Locomotive Magazine,Vol VIII (10 Jan 1903), p.28.

This was one of Edward Bury's last 4-coupled freight engines and it had the classic spacing between the drivers, hemispherical firebox, and unprotected footplate. The author notes about Bury's designs tha they did well in service "...till higher speeds rendered them too unsteady,whilst the staying of the firebox crown and the shape of the box generally were unsuitable for the greater pressures which gradually came into use."

NB: The direct heating surface (including the firebox heating surface) is an estimate calculated by subtracting the calculated tube heating surface from the reported total evaporative heating surface.


Class Locomotion (Locobase 637)

The first engine with drivers coupled on the outside by a connecting rod and built-up drivers bound by a tire. Locomotion could draw 90 tons of cars at 6-8 mph. This was also the first engine built by Robert Stephenson and Company, one of the most influential engine builders in steam locomotive history.

It had one 24" diameter flue

Principal Dimensions by Steve Llanso of Sweat House Media

ClassDartHuddersfieldLocomotion
Locobase ID10240 10255 637
RailroadStockton & DarlingtonStockton & DarlingtonStockton & Darlington
CountryGreat BritainGreat BritainGreat Britain
Whyte0-4-00-4-00-4-0
Number in Class111
Road Numbers
GaugeStdStdStd
Number Built111
BuilderHackworthBuryRobert Stephenson & Co
Year184018461825
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.83 / 1.47 3.92 / 1.19
Engine Wheelbase (ft / m) 4.83 / 1.47 3.92 / 1.19
Ratio of driving wheelbase to overall engine wheelbase11
Overall Wheelbase (engine & tender) (ft / m)35.10 / 10.70
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)46,480 / 21,08314,332 / 6501
Engine Weight (lbs / kg)46,480 / 21,08314,332 / 6501
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)39 / 19.5012 / 6
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 137260 / 152448 / 1219
Boiler Pressure (psi / kPa)100 / 6.9050 / 3.4050 / 3.40
High Pressure Cylinders (dia x stroke) (in / mm)13" x 16" / 330x40615" x 24" / 381x6109.5" x 24" / 241x610
Tractive Effort (lbs / kg)4256 / 1930.493825 / 1734.991918 / 869.99
Factor of Adhesion (Weight on Drivers/Tractive Effort) 12.15 7.47
Heating Ability
Tubes (number - dia) (in / mm)110 - 2" / 51121 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.33 / 3.4510 / 3.05
Firebox Area (sq ft / m2)68 / 6.32
Grate Area (sq ft / m2)11.50 / 1.07
Evaporative Heating Surface (sq ft / m2)602 / 55.95782 / 72.6860 / 5.58
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)602 / 55.95782 / 72.6860 / 5.58
Evaporative Heating Surface/Cylinder Volume244.91159.3130.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1150
Same as above plus superheater percentage1150
Same as above but substitute firebox area for grate area3400
Power L11143
Power MT108.43

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