Data from Henry Varnum Poor (ed), "Locomotive Governor Williamson," American Railroad Journal, Volume 27, whole number 989 (15 April 1854), p. 230.
A contemporary illustration showed a Gothic-revival cab with two four-paned windows, each in the lancet style. Poor waxed effusive about the size and quality of this design:
"There have been but few engines mado in this country which have received more liberal proportions of heating surface and boiler room than the subject under our notice."
He later summarized the engine's virtues: "For durability every reasonable requisite is attained both in the quality and in the finish and mode ef connection of the material. It is pleasing to notice such secure and substantial frames, spring-suspensions, trucks, rockers, valve motions, boiler braces and stays, etc., as the Paterson engines afford, and especially gratifying to see such examples of locomotive construction so well appreciated and patronized in these times, when orders are so likely to be influenced by the sole consideration of price.
"In beauty of form and elegance of proportion, ...[i]n color, polish and decoration the engine is in keeping with the other qualities which we have designated."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Governor Williamson |
| Locobase ID | 11736 |
| Railroad | New Jersey |
| Country | USA |
| Whyte | 4-4-0 |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 1 |
| Builder | Danforth, Cooke |
| Year | 1853 |
| Valve Gear | Stephenson |
| 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) | |
| 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) | 72 / 1829 |
| Boiler Pressure (psi / kPa) | 100 / 620 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 |
| Tractive Effort (lbs / kg) | 5313 / 2409.94 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 129 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.50 / 3.51 |
| Firebox Area (sq ft / m2) | 78.50 / 7.30 |
| Grate Area (sq ft / m2) | 13.89 / 1.29 |
| Evaporative Heating Surface (sq ft / m2) | 856 / 79.55 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 856 / 79.55 |
| Evaporative Heating Surface/Cylinder Volume | 209.29 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1389 |
| Same as above plus superheater percentage | 1389 |
| Same as above but substitute firebox area for grate area | 7850 |
| Power L1 | 3663 |
| Power MT | |