Royal Ordnance Factory #6 0-4-0 Locomotives in Great_Britain
Class Details by Steve Llanso of Sweat House Media
Class 8 (Locobase 11191)
Data from East Essex Locomotive Preservation Society website ([
], last accessed 3 April 2010). Works number was 2157.
A brief glance at the beautifully restored and painted #8 tells you this was an engine designed for close-quarters working. Over a closely spaced wheelbase sits a tightly packed saddle tank with straight sides above which rise two stubby domes, a short stack and a small cab.
Ordered by the Ministry of Supply and placed in service at ROF #6 Thorp Arch Factory near Harrogate, #8 served out World War II at several ROF installations before returning to Barclays in 1946 to be converted to coal burning. It then served the Comrie Colliery and other collieries until its retirement in 1972.
Nearly scrapped in 1977, #8's sentence was commuted when it was bought by Richard & Anthony Goulding to be restored and returned to service at Magnapps Farm Railway at Burnham on Crouch in Essex. As of 2010, it was once again undergoing restoration.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 8 |
| Locobase ID | 11191 |
| Railroad | Royal Ordnance Factory #6 |
| Country | Great Britain |
| Whyte | 0-4-0ST |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 1 |
| Builder | Andrew Barclay |
| Year | 1943 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.50 / 1.68 |
| Engine Wheelbase (ft / m) | 5.50 / 1.68 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 5.50 / 1.68 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 50,960 / 23,115 |
| Engine Weight (lbs / kg) | 50,960 / 23,115 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 50,960 / 23,115 |
| Tender Water Capacity (gals / ML) | 864 / 3.27 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 41 / 1041 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 22" / 356x559 |
| Tractive Effort (lbs / kg) | 14,303 / 6487.74 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.56 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 10.25 / 0.95 |
| Evaporative Heating Surface (sq ft / m2) | 542 / 50.37 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 542 / 50.37 |
| Evaporative Heating Surface/Cylinder Volume | 138.28 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1640 |
| Same as above plus superheater percentage | 1640 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |