Trujillo 2-8-0 Locomotives in Peru


Class Details by Steve Llanso of Sweat House Media

Class 22 (Locobase 4583)

Data from Dr Jonathan Smith, [] . A Ziel & Eagleson (1973) photo from the early 1970s showed a sturdy little Consolidation. (Thanks to Richard West for his 25 September 2021 email correcting the wheel arrangement and reporting the details about the builders and road numbers.) According to Copeland's roster--works numbers were 1795 in 1936, 3413 in 1947, and 3868 in 1956.

Hunslet supplied the Trujillo with these three Consolidations over a 20-year period. In 1948, the Peruvian Government transferred the 30 (the renumbered 22) and 31 to the F. C. Huancayo a Huancavelica, which renumbered them 107-108. Apparently, the national system decided the Trujillo needed a new 2-8-0 and bought the 32 from Hunslet in 1956.

Principal Dimensions by Steve Llanso of Sweat House Media

Class22
Locobase ID4583
RailroadTrujillo
CountryPeru
Whyte2-8-0
Number in Class3
Road Numbers22/30-32/107-108
Gauge3'
Number Built3
BuilderHunslet Engine Co
Year1936
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)107,520 / 48,770
Engine Weight (lbs / kg)120,960 / 54,867
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)45 / 22.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)18.5" x 24" / 470x610
Tractive Effort (lbs / kg)28,562 / 12955.52
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.76
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)23 / 2.14
Evaporative Heating Surface (sq ft / m2)1294 / 120.22
Superheating Surface (sq ft / m2)200 / 18.58
Combined Heating Surface (sq ft / m2)1494 / 138.80
Evaporative Heating Surface/Cylinder Volume173.30
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4140
Same as above plus superheater percentage4678
Same as above but substitute firebox area for grate area
Power L1
Power MT

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