Data from Richard Marsden's LNER site -- [] (accessed 19 March 2005). This trio was delivered in 1898 to a railway whose steep and sharply curved profile brought the good and the bad in the radial tank layout. The good was the design's ability to handle the curves, thanks to 4" of radial-axle travel; the locomotives also rode more steadily. But that trailing truck represented a decrease in available adhesive weight, which this line needed. They worked the main line between Lofthouse and Stourton and branch lines radiating Robin Hood to the Newmarket, Thorpe, and Beeston collieries.
In 1919, #4 was converted to an 0-6-0ST to answer the adhesion requirement. 5-6 had not been converted when the LNER acquired all three in 1923. 6 was almost immediately scrapped rather than repair a cracked frame. About these locomotives: "The N19s were particularly well suited to this demanding line and the LNER was hard-pressed to find a good alternative." Even so, the 3115 (the only full-blooded N19 to survive Grouping) was withdrawn in March 1928.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 4 / N19 |
Locobase ID | 6471 |
Railroad | East & West Yorkshire Union |
Country | Great Britain |
Whyte | 0-6-2ST |
Number in Class | 3 |
Road Numbers | 4-6 |
Gauge | Std |
Number Built | 3 |
Builder | Manning Wardle |
Year | 1898 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | 17.50 / 5.33 |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,896 / 13,107 |
Weight on Drivers (lbs / kg) | |
Engine Weight (lbs / kg) | 98,560 / 44,706 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 98,560 / 44,706 |
Tender Water Capacity (gals / ML) | |
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) | 45 / 1143 |
Boiler Pressure (psi / kPa) | 140 / 970 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
Tractive Effort (lbs / kg) | 18,342 / 8319.80 |
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) | 99 / 9.20 |
Grate Area (sq ft / m2) | 16.30 / 1.51 |
Evaporative Heating Surface (sq ft / m2) | 1039 / 96.56 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1039 / 96.56 |
Evaporative Heating Surface/Cylinder Volume | 164.79 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2282 |
Same as above plus superheater percentage | 2282 |
Same as above but substitute firebox area for grate area | 13,860 |
Power L1 | 2555 |
Power MT |