Data from DeGolyer, Vol 54, pp. 131+ and Vol 64, pp. 314. Works number was 46159 in August 1917 and 52257 in August 1918.
Los Ca'os was one of the mills owned by Guantanamo Sugar Company, which paid for the plantation Prairie tank. Located in the fertile Guantanamo Valley, the sugar plantations owned by the Anglo-Cuban Brook family suffered considerable damage during the Ten-Year War, but revived. The War for Independence, which culminated in the US invasion in 1898, opened Cuba up to US sugar interests more than ever before and by 1905, Ernest and Teodoro Brook had sold their interests to the B H Howell & Son-NRSC group that formed the GSC.
The 7 and 8 rolled on the 40-lb/yard (20-kg/metre) rail that marked a line used primarily to move sugar cane. The 8 put slightly less weight--52,800 lb/23,950 kg--on the drivers and weighed 70,400 lb (31.933 kg) overall.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 7 |
| Locobase ID | 14423 |
| Railroad | Los Ca'os |
| Country | Cuba |
| Whyte | 2-6-2T |
| Number in Class | 1 |
| Road Numbers | 7-8 |
| Gauge | 2'6" |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1917 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.83 / 2.39 |
| Engine Wheelbase (ft / m) | 21 / 6.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | 21 / 6.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 54,000 / 24,494 |
| Engine Weight (lbs / kg) | 72,000 / 32,659 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 900 / 3.41 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 18" / 305x457 |
| Tractive Effort (lbs / kg) | 9527 / 4321.38 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.67 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 81 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.67 / 3.56 |
| Firebox Area (sq ft / m2) | 46 / 4.27 |
| Grate Area (sq ft / m2) | 9 / 0.84 |
| Evaporative Heating Surface (sq ft / m2) | 537 / 49.89 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 537 / 49.89 |
| Evaporative Heating Surface/Cylinder Volume | 227.91 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1440 |
| Same as above plus superheater percentage | 1440 |
| Same as above but substitute firebox area for grate area | 7360 |
| Power L1 | 3212 |
| Power MT | 393.40 |