Rother Valley 2-4-0 Locomotives in Great_Britain


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 10149)

Data from "The Rother Valley Railway," The Locomotive Magazine, Vol V (June 1900), p. 90-91. Railway information from the Colonel Hollman Fred Stephens Society website at []

This pair of locomotives were the first motive power for this 12-mile railway that began at the Robertsbridge Junction with the South Eastern & Chatham Railway and followed the Rother River, stopping at Bodiam (3 1/4 miles), Northiam (6 3/4 miles), and Wittersham (9 1/4 miles), and ending at Tenterden (later renamed Rolvendem). It was a light railway as described in the Light Railways Act of 1896 and part of the system of such railways promoted and operated by Colonel H F Stephens.

At its inauguration, the line had the 2 locomotives (Robertsbridge and Tenterden) painted in royal blue and red trim, 6 4-wheel coaches, 10 goods trucks, and two brake vans. It had easy grades and curves for the most part with the most onerous grades being two quarter-mile 1.25% and one 1.335 of similar length. Scheduled runs included 4 trains in each direction on each weekday (which included Saturday) and two on Sunday. The runs averaged about 15 mph, a typical trip requiring 50 minutes.

In 1904, Robertsbridge was refitted with 48" drivers. Tenterden went over to the East Kent Railway in 1912, where it remained except for a stint from 1918-1922 on the Weston, Clevedon & Portishead Railway. According to steamindex.com, "It ended up as a star in Oh Mr Porter in 1937."

In a couple of years, the line would be extended to Headcorn (opened 1905) by which time the RVR had taken the name Kent & East Sussex and planned to extend to Rye, Cranbrook, and Maidstone. Those plans never came to fruition. At its greatest extent, the K & ES extended 22 miles from Robertsbridge to Headcorn. Remarkably, although traffic declined beginning in the 1920s, it remained open for passenger traffic until 2 January 1954 and finally closed altogether on 12 July 1961.

Principal Dimensions by Steve Llanso of Sweat House Media

Class1
Locobase ID10149
RailroadRother Valley
CountryGreat Britain
Whyte2-4-0T
Number in Class2
Road Numbers1-2
GaugeStd
Number Built2
BuilderHawthorn Leslie
Year1900
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.50 / 1.68
Engine Wheelbase (ft / m)11 / 3.35
Ratio of driving wheelbase to overall engine wheelbase 0.50
Overall Wheelbase (engine & tender) (ft / m)11 / 3.35
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)53,984 / 24,487
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)53,984 / 24,487
Tender Water Capacity (gals / ML)720 / 2.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39 / 991
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x457
Tractive Effort (lbs / kg)7909 / 3587.47
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)39 / 3.62
Grate Area (sq ft / m2)9 / 0.84
Evaporative Heating Surface (sq ft / m2)487 / 45.26
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)487 / 45.26
Evaporative Heating Surface/Cylinder Volume206.69
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1260
Same as above plus superheater percentage1260
Same as above but substitute firebox area for grate area5460
Power L12634
Power MT

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