Railway Age (Vol 70, #14, 1921). See also DeGolyer, Vol 66, pp. 43. Works numbers were 53564, 53582-53585 in August 1920; 53627-53628, 53645-53646 in September.
Firebox heating surface does not include 16 sq ft (1.5 sq m) of arch tubes. These Pacifics hauled the Havana-Santiago expresses--trains consisting of 6-8 cars--at a maximum speed of 30 mph (48 kmh).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 64 |
| Locobase ID | 3232 |
| Railroad | United Railways of Havana |
| Country | Cuba |
| Whyte | 4-6-2 |
| Number in Class | 10 |
| Road Numbers | 64-73 |
| Gauge | Std |
| Number Built | 10 |
| Builder | Baldwin |
| Year | 1920 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11 / 3.35 |
| Engine Wheelbase (ft / m) | 30 / 9.14 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | 57.21 / 17.44 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 104,500 / 47,400 |
| Engine Weight (lbs / kg) | 176,500 / 80,059 |
| Tender Loaded Weight (lbs / kg) | 104,700 / 47,491 |
| Total Engine and Tender Weight (lbs / kg) | 281,200 / 127,550 |
| Tender Water Capacity (gals / ML) | 5000 / 18.94 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3200 / 12,112 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 58 / 29 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 62 / 1575 |
| Boiler Pressure (psi / kPa) | 184.20 / 1270 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 26" / 508x660 |
| Tractive Effort (lbs / kg) | 26,263 / 11912.71 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.98 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 151 - 2" / 51 |
| Flues (number - dia) (in / mm) | 22 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 18.50 / 5.64 |
| Firebox Area (sq ft / m2) | 158 / 14.68 |
| Grate Area (sq ft / m2) | 38.20 / 3.55 |
| Evaporative Heating Surface (sq ft / m2) | 2200 / 204.46 |
| Superheating Surface (sq ft / m2) | 487 / 45.26 |
| Combined Heating Surface (sq ft / m2) | 2687 / 249.72 |
| Evaporative Heating Surface/Cylinder Volume | 232.71 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7036 |
| Same as above plus superheater percentage | 8303 |
| Same as above but substitute firebox area for grate area | 34,342 |
| Power L1 | 14,844 |
| Power MT | 939.48 |