Data from Loco Profile 11 (Brian Reed, 1971). Works numbers were 45 in 1838, 84 in 1839.
says that this type, offered as part of a standard series of four 4-2-0 types in the late 1830s was the least widely sold. Of the four Norris types, these were by far the least powerful might not be seen to have been satisfactory for very long. But Powhatan and Pocahontas survived to be included in City Point's renaming as the Appomattox Railroad in 1847.
Seven years later, the two engines changed heralds and widened their gauge to 5 feet to represent the South Side Railroad. By then, they were clearly obsolete and were shown as out of service by 1857.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Powhatan/C |
| Locobase ID | 4833 |
| Railroad | City Point (Virginia) |
| Country | USA |
| Whyte | 4-2-0 |
| Number in Class | 2 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 2 |
| Builder | Norris |
| Year | 1838 |
| 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) | 8022 / 3639 |
| Engine Weight (lbs / kg) | 15,705 / 7124 |
| 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) | 13 / 6.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 100 / 690 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9" x 18" / 229x457 |
| Tractive Effort (lbs / kg) | 2582 / 1171.18 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.11 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 58 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7 / 2.13 |
| Firebox Area (sq ft / m2) | 29.29 / 2.72 |
| Grate Area (sq ft / m2) | 6.37 / 0.59 |
| Evaporative Heating Surface (sq ft / m2) | 247 / 22.96 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 247 / 22.96 |
| Evaporative Heating Surface/Cylinder Volume | 185.71 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 637 |
| Same as above plus superheater percentage | 637 |
| Same as above but substitute firebox area for grate area | 2929 |
| Power L1 | 2367 |
| Power MT | 650.50 |