Class Details by Steve Llanso of Sweat House Media
Class 2524 (Locobase 2180)
Data from C J Bowen Cooke "British Locomotives", (London: Whitaker & Co, 1894)
Larger freight engine that started a trend. The boiler had a 39.7 sq ft (3.69 sq m) of heating surface in a combustion chamber in the center of the barrel. Bowen Cooke asserts that placing this chamber in the middle of the tube length "...has the effect of arresting the gases as they pass from the firebox, thus securing more perfect combustion, and causing all the heat developed to be fully utilized for the generation of steam." Indeed, such chambers did have that effect, but they were usually placed just ahead of the firebox.Class A (Locobase 2181)
Data from F W Webb, "Development of the Crewe System of Compounding Locomotives," Engineering Review, Volume 2, (20 June 1895), pp. 391-393; and W A Tuplin, The Steam Locomotive: Its Form and Function (New York: Charles Scribner's Sons, 1974), Tank engine of an unusual wheel arrangement by FW Webb. Built between 1881-1890 and in service until 1958.
Like the Teutonics, these 0-8-0s used Stephenson link motion on the outside with a "slip-eccentric" link between the two outside HP cylinders and the single LP cylinder under the smokebox. Unlike the passenger engines, however, the four axles were coupled and all three cylinders drove the second axle. They were soon rebuilt as D-class simple-expansion locomotives by GW Whale.Note: Tuplin gave a nominal tractive effort of 30,000 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.[] (9 May 2003 -- the website of the London & North Western Railway Society's Goods Locomotives "exhibit" -- for boiler diameter.
Class B / Swami (Locobase 2189)
Data from W A Tuplin, The Steam Locomotive: Its Form and Function (New York: Charles Scribner's Sons, 1974), Some data from Christopher Hill (who styles himself "Webb [sic] Master of [] (10 May 2003 -- the website of the London & North Western Railway Society's Goods Locomotives "exhibit".
Class C (Locobase 2182)
Fifteen rebuilds of the unsuccessful Webb freight compounds by George Whale. These engines joined other classes in a further 1912 build by CJ Bowen-Cooke known as the G1 class.
Class D (Locobase 5529)
Data from [], first accessed 10 May 2003); and W A Tuplin, The Steam Locomotive: Its Form and Function (New York: Charles Scribner's Sons, 1974),
[] (10 May 2003 -- the website of the London & North Western Railway Society's Goods Locomotives "exhibit".
Class G (Locobase 2198)
Bowen-Cooke's initial 0-8-0 design that was also the basis for the G1 series of rebuilt 0-8-0s, into which these engines were incorporated.
According to Christopher Hill (who styles himself "Webb [sic] Master of[] (20 March 2005) -- the website of the London & North Western Railway Society's Goods Locomotives "exhibit", these locomotives were rebuilds of the B class (which were in turn rebuilds of the A). The HP cylinders were removed and the LP cylinders left as the main power.
Class G1 / Super D (Locobase 2183)
Data from Christopher Hill ("Webb [sic] Master of [] (accessed 19 March 2005) -- the website of the London & North Western Railway Society's Goods Locomotives "exhibit". See also "Superheater Goods Engine, London and North Western Railway," Locomotive Magazine, Volume 18, p. 96-97.
Class G2 (Locobase 2202)
Data from [] (10 May 2003)
Class G4S (Locobase 3761)
Data from Bryan Attewell ([] Steam locomotive simulator (April 2000 edition).
Principal Dimensions by Steve Llanso of Sweat House Media | |||||
---|---|---|---|---|---|
Class | 2524 | A | B / Swami | C | D |
Locobase ID | 2180 | 2181 | 2189 | 2182 | 5529 |
Railroad | London & North Western | London & North Western | London & North Western | London & North Western | London & North Western |
Country | Great Britain | Great Britain | Great Britain | Great Britain | Great Britain |
Whyte | 0-8-0 | 0-8-0 | 0-8-0 | 0-8-0 | 0-8-0 |
Number in Class | 1 | 111 | 170 | 15 | 63 |
Road Numbers | 2524 | ||||
Gauge | Std | Std | Std | Std | Std |
Number Built | 1 | 111 | 170 | ||
Builder | L&NW - Crewe | L&NW - Crewe | L&NW - Crewe | L&NW - Crewe | L&NW - Crewe |
Year | 1892 | 1893 | 1901 | 1904 | 1906 |
Valve Gear | Joy | Stephenson | Joy | Joy | Stephenson |
Locomotive Length and Weight | |||||
Driver Wheelbase (ft / m) | 17.25 / 5.26 | 17.25 / 5.26 | 17.25 / 5.26 | 17.25 / 5.26 | |
Engine Wheelbase (ft / m) | 17.25 / 5.26 | 17.25 / 5.26 | 17.25 / 5.26 | 17.25 / 5.26 | |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 | 1 | 1 | |
Overall Wheelbase (engine & tender) (ft / m) | |||||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 27,776 / 12,599 | 32,256 / 14,631 | 38,528 | ||
Weight on Drivers (lbs / kg) | 110,097 / 49,939 | 112,000 / 50,802 | 120,960 / 54,867 | 112,000 / 50,802 | 126,000 / 57,153 |
Engine Weight (lbs / kg) | 110,097 / 49,939 | 112,000 / 50,802 | 120,960 / 54,867 | 112,000 / 50,802 | 126,000 / 57,153 |
Tender Loaded Weight (lbs / kg) | 56,000 / 25,401 | ||||
Total Engine and Tender Weight (lbs / kg) | 166,097 / 75,340 | ||||
Tender Water Capacity (gals / ML) | 2471 / 9.36 | 2160 / 8.18 | 3000 / 11.36 | ||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 | ||||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 | 47 / 23.50 | 50 / 25 | 47 / 23.50 | 53 / 26.50 |
Geometry Relating to Tractive Effort | |||||
Driver Diameter (in / mm) | 53 / 1346 | 53 / 1346 | 53 / 1346 | 53 / 1346 | 53.50 / 1359 |
Boiler Pressure (psi / kPa) | 160 / 11 | 175 / 12.10 | 200 / 13.80 | 165 / 11.40 | 175 / 12.10 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19.5" x 24" / 495x610 | 15" x 24" / 381x610 | 16" x 24" / 406x610 | 20.5" x 24" / 521x610 | 19.5" x 24" / 495x610 |
Low Pressure Cylinders (dia x stroke) (in / mm) | 30" x 24" / 762x610 (1) | 20.5" x 24" / 521x610 | |||
Tractive Effort (lbs / kg) | 23,418 / 10622.24 | 18,187 / 8249.49 | 24,494 / 11110.30 | 26,690 / 12106.39 | 25,374 / 11509.47 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.70 | 6.16 | 4.94 | 4.20 | 4.97 |
Heating Ability | |||||
Tubes (number - dia) (in / mm) | 210 - 1.875" / 48 | ||||
Flues (number - dia) (in / mm) | |||||
Flue/Tube length (ft / m) | 13.33 / 4.06 | ||||
Firebox Area (sq ft / m2) | 127.02 / 11.80 | 115 / 10.69 | 123 / 11.43 | 123 / 11.43 | |
Grate Area (sq ft / m2) | 20.50 / 1.90 | 20.50 / 1.91 | 20.80 / 1.93 | 20.50 / 1.91 | 23.60 / 2.19 |
Evaporative Heating Surface (sq ft / m2) | 1274 / 118.36 | 1490 / 138.48 | 1753 / 162.92 | 1753 / 162.92 | 2043 / 189.80 |
Superheating Surface (sq ft / m2) | |||||
Combined Heating Surface (sq ft / m2) | 1274 / 118.36 | 1490 / 138.48 | 1753 / 162.92 | 1753 / 162.92 | 2043 / 189.80 |
Evaporative Heating Surface/Cylinder Volume | 153.57 | 303.54 | 313.87 | 191.20 | 246.27 |
Computations Relating to Power Output (More Information) | |||||
Robert LeMassena's Power Computation | 3280 | 3588 | 4160 | 3383 | 4130 |
Same as above plus superheater percentage | 3280 | 3588 | 4160 | 3383 | 4130 |
Same as above but substitute firebox area for grate area | 20,323 | 20,125 | 24,600 | 20,295 | |
Power L1 | 3252 | 3251 | 4563 | 3764 | |
Power MT | 260.48 | 255.97 | 332.66 | 296.36 |
Principal Dimensions by Steve Llanso of Sweat House Media | ||||
---|---|---|---|---|
Class | G | G1 / Super D | G2 | G4S |
Locobase ID | 2198 | 2183 | 2202 | 3761 |
Railroad | London & North Western | London & North Western | London & North Western | London & North Western |
Country | Great Britain | Great Britain | Great Britain | Great Britain |
Whyte | 0-8-0 | 0-8-0 | 0-8-0 | 0-8-0 |
Number in Class | 60 | 449 | 60 | |
Road Numbers | ||||
Gauge | Std | Std | Std | Std |
Number Built | 60 | 170 | ||
Builder | L&NW - Crewe | L&NW - Crewe | L&NW - Crewe | L&NW - Crewe |
Year | 1906 | 1912 | 1921 | 1923 |
Valve Gear | Joy | Joy | Joy | Stephenson |
Locomotive Length and Weight | ||||
Driver Wheelbase (ft / m) | 17.25 / 5.26 | 17.25 / 5.26 | 17.25 / 5.26 | |
Engine Wheelbase (ft / m) | 17.25 / 5.26 | 17.25 / 5.26 | 17.25 / 5.26 | |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 | 1 | |
Overall Wheelbase (engine & tender) (ft / m) | 41.10 / 12.53 | |||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 39,200 / 17,781 | 39,200 / 17,781 | ||
Weight on Drivers (lbs / kg) | 132,160 / 59,947 | 136,640 / 61,979 | 138,880 / 62,995 | 138,880 / 62,995 |
Engine Weight (lbs / kg) | 132,160 / 59,947 | 136,640 / 61,979 | 138,880 / 62,995 | 138,880 / 62,995 |
Tender Loaded Weight (lbs / kg) | 87,920 / 39,880 | 88,480 / 40,134 | ||
Total Engine and Tender Weight (lbs / kg) | 224,560 / 101,859 | 227,360 / 103,129 | ||
Tender Water Capacity (gals / ML) | 3600 / 13.64 | 3000 / 11.36 | ||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 | 7.20 / 7 | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 55 / 27.50 | 57 / 28.50 | 58 / 29 | 58 / 29 |
Geometry Relating to Tractive Effort | ||||
Driver Diameter (in / mm) | 53 / 1346 | 53.50 / 1359 | 53 / 1346 | 53.50 / 1359 |
Boiler Pressure (psi / kPa) | 160 / 11 | 160 / 11 | 175 / 12.10 | 175 / 12.10 |
High Pressure Cylinders (dia x stroke) (in / mm) | 20.5" x 24" / 521x610 | 20.5" x 24" / 521x610 | 20.5" x 24" / 521x610 | 20.5" x 24" / 521x610 |
Tractive Effort (lbs / kg) | 25,881 / 11739.44 | 25,639 / 11629.67 | 28,307 / 12839.85 | 28,043 / 12720.11 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.11 | 5.33 | 4.91 | 4.95 |
Heating Ability | ||||
Tubes (number - dia) (in / mm) | 159 - 1.875" / 48 | |||
Flues (number - dia) (in / mm) | 24 - 5" / 127 | |||
Flue/Tube length (ft / m) | 14.83 / 4.52 | 14.75 / 4.50 | ||
Firebox Area (sq ft / m2) | 147 / 13.66 | 146.70 / 13.63 | 147 / 13.66 | |
Grate Area (sq ft / m2) | 23.60 / 2.19 | 23.60 / 2.19 | 23.60 / 2.19 | 23.60 / 2.19 |
Evaporative Heating Surface (sq ft / m2) | 2043 / 189.87 | 1772 / 164.62 | 1692 / 157.19 | 1580 / 146.84 |
Superheating Surface (sq ft / m2) | 380 / 35.30 | 360 / 33.44 | 359 / 33.36 | |
Combined Heating Surface (sq ft / m2) | 2043 / 189.87 | 2152 / 199.92 | 2052 / 190.63 | 1939 / 180.20 |
Evaporative Heating Surface/Cylinder Volume | 222.83 | 193.27 | 184.55 | 172.33 |
Computations Relating to Power Output (More Information) | ||||
Robert LeMassena's Power Computation | 3776 | 3776 | 4130 | 4130 |
Same as above plus superheater percentage | 3776 | 4456 | 4873 | 4915 |
Same as above but substitute firebox area for grate area | 23,520 | 27,697 | 30,356 | |
Power L1 | 4282 | 9220 | 9555 | |
Power MT | 285.72 | 595.04 | 606.71 |
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