Data from "'Compound Articulated Locomotives (Metre Gauge) for the Central Northern Railway of the Argentine Republic", Engineering, Volume 82, No, (4 August 1905), pp. , 159-160.
Locobase 20811 gives the details of the boiler, Belpaire firebox, and running gear this all-adhesion goods Mallet shared with the 2-4-6-0 passenger variant. The 166 combined the same power dimensions with much shorter drivers to generate more tractive effort. The design was rated to pull 150 tons up a 2 1/2% grade at 12 1/2 mph (20 kph).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 166 |
| Locobase ID | 20812 |
| Railroad | FC Central Norte Argentino (FCCNA) |
| Country | Argentina |
| Whyte | 0-6-6-0 |
| Number in Class | |
| Road Numbers | |
| Gauge | Metre |
| Number Built | |
| Builder | Borsig |
| Year | 1905 |
| Valve Gear | Heusinger |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 16.14 / 4.92 |
| Engine Wheelbase (ft / m) | 22.60 / 6.89 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.71 |
| Overall Wheelbase (engine & tender) (ft / m) | 47.51 / 14.48 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 103,617 / 47,000 |
| Engine Weight (lbs / kg) | 103,617 / 47,000 |
| Tender Loaded Weight (lbs / kg) | 70,548 / 32,000 |
| Total Engine and Tender Weight (lbs / kg) | 174,165 / 79,000 |
| Tender Water Capacity (gals / ML) | 3960 / 15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43.30 / 1100 |
| Boiler Pressure (psi / kPa) | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12.99" x 21.65" / 330x550 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 20.47" x 21.65" / 520x550 |
| Tractive Effort (lbs / kg) | 17,792 / 8070.33 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.82 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 191 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 14.76 / 4.50 |
| Firebox Area (sq ft / m2) | 161.46 / 15 |
| Grate Area (sq ft / m2) | 32.29 / 3 |
| Evaporative Heating Surface (sq ft / m2) | 1615 / 150 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1615 / 150 |
| Evaporative Heating Surface/Cylinder Volume | 486.32 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5618 |
| Same as above plus superheater percentage | 5618 |
| Same as above but substitute firebox area for grate area | 28,094 |
| Power L1 | 3688 |
| Power MT | 470.81 |