Data from E L Ahrons, The British Railway Locomotive, 1825-1925 (London: Locomotive Publishing Company, 1927), pp.113, 145, 147. See also "136 class: 1856-61" in steamindex at [].
Designed by M. Kirtley, who used outside, double-plate frames and outside bearings on all axles. Its stubby dimensions included equally spaced axles for the tall driver and front and rear carrying axles. Steamindex describes them as "relatively weak locomotives" that had a life of fifteen to eighteen years.
Data from David Joy's diary as reproduced on []; and "The Jenny Lind", Engineer, Volume 82, No 2 (10 January 2023), p. 25, archived on the D3D Diagram 3D website at [
]; and the Leeds Engine Builders website at last accessed 12 November 2023. See also Samuel Rendell (M. I Mech.E), "The Steam Locomotive: Fifty Years Ago and Now", read Saturday, 13 January 1906 and published in the Transactions of the Manchester Association of Engineers 1906 (January to March); ando Daniel Kinnear Clark, Railway machinery: a treatise on the mechanical engineering of ..., Volume 1 (text) (London: Blackie and Son, 1855), p. 314. Works numbers were 494, 497-498, 502, 504-505
Locobase 664 shows the London, Brighton & South Coast's "Jenny Lind", designed by David Joy with boiler by James Fenton In 1848, Joy ran tests pitting the Jenny Lind against this slightly larger six-wheel single. The Sharpies turned drivers measuring six-inches(152 mm) smaller, but offered a larger boiler. Clark characterized the results as benefiting the use of smaller boilers and underlined the fallacy of rolling on larger drivers.
Regarding the contention 175 years hence, Locobase acknowledges the difference but assigns much less weight to them. On the other hand, Jenny Linds soon appeared on several railroads while Sharp Brothers produced only six of this particular version of the Jenny Sharp.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 136 | Jenny Sharp |
Locobase ID | 2211 | 5591 |
Railroad | Midland | Midland |
Country | Great Britain | Great Britain |
Whyte | 2-2-2 | 2-2-2 |
Number in Class | 38 | 6 |
Road Numbers | 136-149, 1-24 | 60-65 |
Gauge | Std | Std |
Number Built | 38 | 6 |
Builder | Derby | Sharp Brothers |
Year | 1861 | 1848 |
Valve Gear | Stephenson | |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | ||
Engine Wheelbase (ft / m) | 16 / 4.88 | 16 / 4.88 |
Ratio of driving wheelbase to overall engine wheelbase | ||
Overall Wheelbase (engine & tender) (ft / m) | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | ||
Engine Weight (lbs / kg) | 47,040 / 21,337 | |
Tender Loaded Weight (lbs / kg) | 29,232 / 13,259 | |
Total Engine and Tender Weight (lbs / kg) | 76,272 / 34,596 | |
Tender Water Capacity (gals / ML) | 960 / 3.64 | |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.70 / 2 | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | ||
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 80 / 2032 | 66 / 1676 |
Boiler Pressure (psi / kPa) | 140 / 970 | 100 / 690 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16.5" x 22" / 419x559 | 16" x 20" / 406x508 |
Tractive Effort (lbs / kg) | 8909 / 4041.06 | 6594 / 2990.99 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | ||
Heating Ability | ||
Tubes (number - dia) (in / mm) | - 2" / 51 | 161 - 2" / 51 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 10 / 3.05 | |
Firebox Area (sq ft / m2) | 89 / 8.27 | |
Grate Area (sq ft / m2) | 16 / 1.49 | 11.40 / 1.06 |
Evaporative Heating Surface (sq ft / m2) | 1136 / 105.58 | 932 / 86.62 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1136 / 105.58 | 932 / 86.62 |
Evaporative Heating Surface/Cylinder Volume | 208.65 | 200.25 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 2240 | 1140 |
Same as above plus superheater percentage | 2240 | 1140 |
Same as above but substitute firebox area for grate area | 8900 | |
Power L1 | 3254 | |
Power MT |