26 four-cylinder Webb Class B compounds rebuilt by George Whale with a Bissel leading truck to become the first Consolidations on the London & North Western. Chris Northedge, author of [] (10 May 2003 -- the website of the London & North Western Railway Society's Goods Locomotives "exhibit" says the conversion reduced the weight on the front end, improved the look and the ride.
Note: Tuplin (1963) gives a nominal tractive effort of 29,000 lb, commenting that it is "that of the simple engine produced by removing the high-pressure cylinders." The number given in the specifications is based on a 1924 ARA formula.
George Whale rebuilt this batch of 11 four-cylinder Webb compounds as Consolidations like the E class, but with larger boilers and grates. Chris Northedge, author of [] (10 May 2003 -- the website of the London & North Western Railway Society's Goods Locomotives "exhibit" credits the rebuilds with 15" HP cylinders, describing the result as "a powerful, flexible and economic design."
Like the Es, these were later rebuilt as 0-8-0s by Bowen-Cooke.
Note: Tuplin (1963) gives a nominal tractive effort of 29,000 lb, commenting that it is "that of the simple engine produced by removing the high-pressure cylinders." The number given in the specifications is based on a 1924 ARA formula.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | E | F |
Locobase ID | 2190 | 2194 |
Railroad | London & North Western | London & North Western |
Country | Great Britain | Great Britain |
Whyte | 2-8-0 | 2-8-0 |
Number in Class | 26 | 11 |
Road Numbers | ||
Gauge | Std | Std |
Number Built | ||
Builder | L&NW - Crewe | L&NW - Crewe |
Year | 1904 | 1904 |
Valve Gear | Joy | Joy |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 17.25 / 5.26 | 17.25 / 5.26 |
Engine Wheelbase (ft / m) | 23.58 / 7.19 | 23.58 / 7.19 |
Ratio of driving wheelbase to overall engine wheelbase | 0.73 | 0.73 |
Overall Wheelbase (engine & tender) (ft / m) | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 29,232 / 13,259 | |
Weight on Drivers (lbs / kg) | 104,272 / 47,297 | 120,960 / 54,867 |
Engine Weight (lbs / kg) | 126,560 / 57,407 | 145,600 / 66,043 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | 2400 / 9.09 | 3600 / 13.64 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 | 5.50 / 5 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 43 / 21.50 | 50 / 25 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 53.50 / 1359 | 53 / 1346 |
Boiler Pressure (psi / kPa) | 175 / 1210 | 175 / 1210 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 24" / 381x610 | 16" x 24" / 406x610 |
Low Pressure Cylinders (dia x stroke) (in / mm) | 20.5" x 24" / 521x610 | 20.5" x 24" / 521x610 |
Tractive Effort (lbs / kg) | 19,557 / 8870.92 | 21,432 / 9721.40 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.33 | 5.64 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | ||
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | ||
Firebox Area (sq ft / m2) | 123 / 11.43 | 147 / 13.66 |
Grate Area (sq ft / m2) | 20.50 / 1.91 | 23.60 / 2.19 |
Evaporative Heating Surface (sq ft / m2) | 1753 / 162.92 | 2150 / 199.81 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1753 / 162.92 | 2150 / 199.81 |
Evaporative Heating Surface/Cylinder Volume | 357.12 | 384.96 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 3588 | 4130 |
Same as above plus superheater percentage | 3588 | 4130 |
Same as above but substitute firebox area for grate area | 21,525 | 25,725 |
Power L1 | 4030 | 4864 |
Power MT | 340.82 | 354.61 |