Great Eastern 0-4-2 Locomotives in Great_Britain

Class Details by Steve Llanso of Sweat House Media

Class K9 (Locobase 16020)

Data from "The Locomotives of the Great Eastern Railway", The Locomotive, Volume 16 (15 December 1910), p. 261. Road numbers 20 in May 1877, 21-22, 23-25 in June, 7 and 9 in December, 8 in February 1878, 10 in April, and 22 in May.

These were the only engines built at the GER's Stratford Works during William Adams' superintendence. They had a bit more heating surface area than the 50 0-4-4Ts shown in Locobase 16021. The frst five had two plates butt-joined; they were recognized by their dome on the front course. The latter five used a three-plate boiler that put the dome over the center plate. The LM author notes the economical recycling that led to reusing old Gooch-era drivers, suitably cut down, for the leading drivers ahead of the trailing drivers, which had been the leading drivers of Sinclair-designed four-coupled. Bromley's tank engines provided drivers for the second five.

They pulled light local passenger trains on the GER's branch lines.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID16020
RailroadGreat Eastern (GER)
CountryGreat Britain
Number in Class10
Road Numbers20-21, 23-25, 7, 9, 8, 10, 22
Number Built10
BuilderStratford works
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.17 / 2.19
Engine Wheelbase (ft / m)14 / 4.27
Ratio of driving wheelbase to overall engine wheelbase 0.51
Overall Wheelbase (engine & tender) (ft / m)14 / 4.27
Axle Loading (Maximum Weight per Axle) (lbs / kg)29,708 / 13,475
Weight on Drivers (lbs / kg)59,444 / 26,963
Engine Weight (lbs / kg)86,380 / 39,181
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)86,380 / 39,181
Tender Water Capacity (gals / ML)1020 / 3.86
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)58 / 1473
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)15" x 22" / 381x559
Tractive Effort (lbs / kg)10,156 / 4606.69
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.85
Heating Ability
Tubes (number - dia) (in / mm)203 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.41 / 2.87
Firebox Area (sq ft / m2)75.43 / 7.01
Grate Area (sq ft / m2)12.30 / 1.14
Evaporative Heating Surface (sq ft / m2)950 / 88.26
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)950 / 88.26
Evaporative Heating Surface/Cylinder Volume211.13
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1722
Same as above plus superheater percentage1722
Same as above but substitute firebox area for grate area10,560
Power L13992
Power MT296.11

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