Data from Schenectady Locomotive Works, Illustrated Catalogue of Simple and Compound Locomotives (Philadelphia: J B Lippincott, 1897), pp. 6-7. Works number was 4394 in 1895.
Greater cylilnder diameter distinguished the 3 from other StL&A American-type Eight wheelers; Locobase 3146 describes the two identical locomotives delivered to the Cleveland, Cincinnati, Chicago & St. Louis earlier in 1895 as the Big Four's 200-201..
The 3 (renumbered from 13) landed on the Cleveland, Cincinnati, Chicago & St Louis (Big Four) as their 202.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 13/3 |
| Locobase ID | 11106 |
| Railroad | St Lawrence & Adirondack (Big Four) |
| Country | USA |
| Whyte | 4-4-0 |
| Number in Class | 1 |
| Road Numbers | 13/3/200 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Schenectady |
| Year | 1895 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.50 / 2.59 |
| Engine Wheelbase (ft / m) | 23.92 / 7.29 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.36 |
| Overall Wheelbase (engine & tender) (ft / m) | 50.54 / 15.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 84,500 / 38,329 |
| Engine Weight (lbs / kg) | 131,000 / 59,421 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 70 / 35 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 67 / 1702 |
| Boiler Pressure (psi / kPa) | 190 / 1310 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 24" / 508x610 |
| Tractive Effort (lbs / kg) | 23,140 / 10496.14 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.65 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 320 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12 / 3.66 |
| Firebox Area (sq ft / m2) | 171.70 / 15.96 |
| Grate Area (sq ft / m2) | 30.80 / 2.86 |
| Evaporative Heating Surface (sq ft / m2) | 2168 / 201.49 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2168 / 201.49 |
| Evaporative Heating Surface/Cylinder Volume | 248.34 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5852 |
| Same as above plus superheater percentage | 5852 |
| Same as above but substitute firebox area for grate area | 32,623 |
| Power L1 | 7355 |
| Power MT | 383.79 |