Data from DeGolyer, Vol 79, pp. 113+. Works number was 60681 in October 1928.
The Este was built on 60 lb/yard (30 kg/metres) on a profile that featured grades "not over 3%" and curve radii of 197 feet (60 metres) or 29 degrees.
Wes Barris's steamlocomotive.com notes that the 7 was eventually put on display in the Parque de las Ciencias in Bayamón..
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 7 |
| Locobase ID | 15417 |
| Railroad | Este |
| Country | USA |
| Whyte | 2-6-0 |
| Number in Class | 2 |
| Road Numbers | 7 |
| Gauge | Metre |
| Number Built | 4 |
| Builder | Baldwin |
| Year | 1900 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.50 / 2.29 |
| Engine Wheelbase (ft / m) | 14.67 / 4.47 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.51 |
| Overall Wheelbase (engine & tender) (ft / m) | 40.60 / 12.37 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 60,000 / 27,216 |
| Engine Weight (lbs / kg) | 70,000 / 31,752 |
| Tender Loaded Weight (lbs / kg) | 52,500 / 23,814 |
| Total Engine and Tender Weight (lbs / kg) | 122,500 / 55,566 |
| Tender Water Capacity (gals / ML) | 2200 / 8.33 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 18" / 356x457 |
| Tractive Effort (lbs / kg) | 14,589 / 6617.47 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.11 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 142 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.25 / 3.73 |
| Firebox Area (sq ft / m2) | 66 / 6.13 |
| Grate Area (sq ft / m2) | 17.10 / 1.59 |
| Evaporative Heating Surface (sq ft / m2) | 971 / 90.21 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 971 / 90.21 |
| Evaporative Heating Surface/Cylinder Volume | 302.49 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3078 |
| Same as above plus superheater percentage | 3078 |
| Same as above but substitute firebox area for grate area | 11,880 |
| Power L1 | 4499 |
| Power MT | 495.93 |