Metropolitan 2-6-4 Locomotives in Great_Britain
Class Details by Steve Llanso of Sweat House Media
Class K / L2 (Locobase 6292)
Data from Richard Marsden's LNER site ([
], visited 2 Sept 2004).
]
In 1933, the Metropolitan became part of the London Passenger Transport Board (LPTB). The Ks were then taken up by the LNER in 1938 as their class L2.
Because of their odd boilers, this class were retired not long after (beginning in 1943 and ending by the time of the formation of British Railways in 1948).
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | K / L2 |
| Locobase ID | 6292 |
| Railroad | Metropolitan |
| Country | Great Britain |
| Whyte | 2-6-4T |
| Number in Class | 6 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 6 |
| Builder | Armstrong Whitworth |
| Year | 1925 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 36.58 / 11.15 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 41,328 / 18,746 |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 195,664 / 88,752 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 195,664 / 88,752 |
| Tender Water Capacity (gals / ML) | 2000 / 7.58 |
| 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) | 63 / 1600 |
| Boiler Pressure (psi / kPa) | 200 / 13.80 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 28" / 483x711 |
| Tractive Effort (lbs / kg) | 27,276 / 12372.20 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 172 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | 21 - 5" / 127 |
| Flue/Tube length (ft / m) | 12.92 / 3.94 |
| Firebox Area (sq ft / m2) | 135 / 12.54 |
| Grate Area (sq ft / m2) | 25 / 2.32 |
| Evaporative Heating Surface (sq ft / m2) | 1508 / 140.10 |
| Superheating Surface (sq ft / m2) | 285 / 26.48 |
| Combined Heating Surface (sq ft / m2) | 1793 / 166.58 |
| Evaporative Heating Surface/Cylinder Volume | 164.12 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5000 |
| Same as above plus superheater percentage | 5800 |
| Same as above but substitute firebox area for grate area | 31,320 |
| Power L1 | 10,851 |
| Power MT | |