Data from DeGolyer, Volume 32, p. 303. See 13472 for a short history of the I-M. Works number was 32983 in September 1908.
As the I-M rebuilt its infrastructure, it came to Baldwin for another locomotive that was produced a couple of months after the 2-4-0 described in Locobase 13472. This was a bigger engine, although its dimensions still fell well on the small side for a standard-gauge Mogul. On the other hand, its wheel bases stretched well beyond the usual, possibly to reduce axle loading even as the spec called for as much adhesion weight as possible.
When the I-M canceled the Peruvian Corporation's lease at the end of 1915, this engine went to the Tacna & Arica as their 2A.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | Moquegua |
Locobase ID | 13473 |
Railroad | Ilo a Moquegua |
Country | Peru |
Whyte | 2-6-2 |
Number in Class | 1 |
Road Numbers | 2 |
Gauge | Std |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1908 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 14.50 / 4.42 |
Engine Wheelbase (ft / m) | 21.83 / 6.65 |
Ratio of driving wheelbase to overall engine wheelbase | 0.66 |
Overall Wheelbase (engine & tender) (ft / m) | 42.92 / 13.08 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 74,000 / 33,566 |
Engine Weight (lbs / kg) | 88,000 / 39,916 |
Tender Loaded Weight (lbs / kg) | 50,000 / 22,680 |
Total Engine and Tender Weight (lbs / kg) | 138,000 / 62,596 |
Tender Water Capacity (gals / ML) | 2500 / 9.47 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.40 / 4 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 41 / 20.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 46 / 1168 |
Boiler Pressure (psi / kPa) | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
Tractive Effort (lbs / kg) | 18,165 / 8239.52 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 156 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 10.75 / 3.28 |
Firebox Area (sq ft / m2) | 84.80 / 7.88 |
Grate Area (sq ft / m2) | 15.40 / 1.43 |
Evaporative Heating Surface (sq ft / m2) | 956 / 88.81 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 956 / 88.81 |
Evaporative Heating Surface/Cylinder Volume | 171.17 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2464 |
Same as above plus superheater percentage | 2464 |
Same as above but substitute firebox area for grate area | 13,568 |
Power L1 | 3031 |
Power MT | 270.90 |