Data from 1915 CNE Classification of Locomotives book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 3096 in September 1882, 3299 in July 1883, and 3346 in September.
All three of the locomotives were reboilered and it isn't clear to which one of the three upgrades the data from the Classification book refer. Beaujon's H&CW roster compilation shows that H&CW successor Central New England rebuilt 16 in July 1900 with a new boiler from Baldwin. 17 received an extended front end from the CNE in July 1890 and a new boiler in April 1901. Finally, 18 got its new boiler in July 1901 along with an extended saddle.
The CNE condemned 35 (ex-16) on 20 November 1919. 36 followed in October 1925, and 37 finished the class in July 1926.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | P-2 - 1882 |
| Locobase ID | 6644 |
| Railroad | Hartford & Connecticut Western |
| Country | USA |
| Whyte | 4-4-0 |
| Number in Class | 3 |
| Road Numbers | 16-18/220-222/35-37 |
| Gauge | Std |
| Number Built | 3 |
| Builder | Rogers |
| Year | 1882 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.75 / 2.67 |
| Engine Wheelbase (ft / m) | 23.29 / 7.10 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
| Overall Wheelbase (engine & tender) (ft / m) | 44.54 / 13.58 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 61,550 / 27,919 |
| Engine Weight (lbs / kg) | 99,200 / 44,996 |
| Tender Loaded Weight (lbs / kg) | 103,000 / 46,720 |
| Total Engine and Tender Weight (lbs / kg) | 202,200 / 91,716 |
| Tender Water Capacity (gals / ML) | 8000 / 30.30 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 9 / 8 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 63 / 1600 |
| Boiler Pressure (psi / kPa) | 165 / 1140 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 17,311 / 7852.15 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.56 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 216 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11 / 3.35 |
| Firebox Area (sq ft / m2) | 134.60 / 12.51 |
| Grate Area (sq ft / m2) | 17 / 1.58 |
| Evaporative Heating Surface (sq ft / m2) | 1369 / 127.23 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1369 / 127.23 |
| Evaporative Heating Surface/Cylinder Volume | 193.64 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2805 |
| Same as above plus superheater percentage | 2805 |
| Same as above but substitute firebox area for grate area | 22,209 |
| Power L1 | 5004 |
| Power MT | 358.47 |