Demand for Stephenson-designed Planet locomotives was so heavy that Stephenson licensed Fenton, Murray, and Jackson to build them. Doubtless the variation in boiler size and grate area is a matter of customer difference rather than an F,M, & J innovation. R & W Hawthorn Company of Newcastle, established with Stephenson help,
later became an independent builder, also constructing Planets.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | Jackson |
Locobase ID | 654 |
Railroad | none |
Country | Great Britain |
Whyte | 2-2-0 |
Number in Class | |
Road Numbers | |
Gauge | Std |
Number Built | |
Builder | Fenton Murray & Jackson |
Year | 1835 |
Valve Gear | |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | |
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) | 20,396 / 9251 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
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) | 60.60 / 1539 |
Boiler Pressure (psi / kPa) | |
High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
Tractive Effort (lbs / kg) | |
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) | |
Grate Area (sq ft / m2) | 7 / 0.65 |
Evaporative Heating Surface (sq ft / m2) | 274 / 25.46 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 274 / 25.46 |
Evaporative Heating Surface/Cylinder Volume | 155.69 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | |
Same as above plus superheater percentage | |
Same as above but substitute firebox area for grate area | |
Power L1 | |
Power MT |