North Eastern 0-4-0 Locomotives in Great_Britain

Class Details by Steve Llanso of Sweat House Media

Class Y7 (Locobase 4536)

One of the last engines to be built with Joy valve gear, these little tanks served as dock shunters in ports like Hull. According to Richard Drew of the Great Central Railway site ([]), the first examples of this design were delivered in 1888 (with 16 more following in the next 9 years). A look at Drew's photo suggests that little about the design changed over the next 45 years.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID4536
RailroadNorth Eastern
CountryGreat Britain
Number in Class5
Road Numbers985
Number Built5
Valve GearJoy
Locomotive Length and Weight
Driver Wheelbase (ft / m)6 / 1.83
Engine Wheelbase (ft / m)6 / 1.83
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)50,848 / 23,064
Engine Weight (lbs / kg)50,848 / 23,064
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)50,848 / 23,064
Tender Water Capacity (gals / ML)545 / 2.06
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.30
Minimum weight of rail (calculated) (lb/yd / kg/m)42 / 21
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)14" x 20" / 356x508
Tractive Effort (lbs / kg)11,107 / 5038.06
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.58
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)57 / 5.30
Grate Area (sq ft / m2)11.30 / 1.05
Evaporative Heating Surface (sq ft / m2)505 / 46.93
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)505 / 46.93
Evaporative Heating Surface/Cylinder Volume141.72
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1582
Same as above plus superheater percentage1582
Same as above but substitute firebox area for grate area7980
Power L12173
Power MT188.43

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Wes Barris