Data from "New Locomotives from the Rogers Locomotive Works", American Engineer and Railroad Journal, Vol LXIX, No 2 (February 1895), pp. 83-84.
The brief accompanying text describes this locomotive as a "double-ender plantation engine" with a Belpaire firebox. The photo shows that the firebox's square shoulders were almost completely contained by the large wooden cab. Tall, relatively slender steam and sand domes stood behind the bell, stack, and large headlight along the boiler.
The little sugar road on which this locomotive operated ran for 2.2 miles (3.5 km) on relatively substantial 60 lb/yard (30 kg/metre) rail. The lone M&T moved United Railways of Habana cars from the junction to the mill and back.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Margarita y Teresa |
| Locobase ID | 5838 |
| Railroad | Margarita & Teresa Plantation Railroad |
| Country | Cuba |
| Whyte | 2-4-2T |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 1 |
| Builder | Rogers |
| Year | 1895 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.50 / 1.68 |
| Engine Wheelbase (ft / m) | 18.50 / 5.64 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.30 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 38,000 / 17,237 |
| Engine Weight (lbs / kg) | 68,000 / 30,844 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 850 / 3.22 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 32 / 16 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 40 / 1016 |
| Boiler Pressure (psi / kPa) | 162.40 / 1120 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 22" / 330x560 |
| Tractive Effort (lbs / kg) | 12,831 / 5820.05 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 2.96 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 167 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8 / 2.44 |
| Firebox Area (sq ft / m2) | 54 / 5.02 |
| Grate Area (sq ft / m2) | 9.60 / 0.89 |
| Evaporative Heating Surface (sq ft / m2) | 665 / 61.80 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 665 / 61.80 |
| Evaporative Heating Surface/Cylinder Volume | 196.76 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1559 |
| Same as above plus superheater percentage | 1559 |
| Same as above but substitute firebox area for grate area | 8770 |
| Power L1 | 2995 |
| Power MT | 347.52 |