ENAFER 4-8-0 Locomotives in Peru

Class Details by Steve Llanso of Sweat House Media

Class FCC 110 (Locobase 4585)

Ex 4-8-2 Data from Dr Jonathan Smith, [], supplemented by D[ennis] Rock Carling, 4-8-0 Tender Locomotives (New York: Drake Publishers, Inc, 1972), pp. 40-41 and serial 211 on table XII [12], pp.106-107.

Carling described the Central of Peru as "no ordinary railway.", singling out a 117.5 km (73 miles ) stretch that inclined at an average 1.75%. This was the Chosica-Ticlio main-line section which rose from 857 m (2,812 ft) at Chosica to Ticlio, an astonishing 4,758 m (15,610 ft) above sea level. Carling heaps up the improbables--ruling grade of 4 1/2%, "constant loops and curves to gain height in the narrow, twisting, and precipitous valley". It also offered 13 reversing places along the way.

2-8-0s handled most of the traffic because of the high ratio of adhesion to engine weight. But the CP also had 4-8-2s (Locobase 4586) that proved prone to slipping. The railway eliminated the rear truck and shortened the boiler tubes, which brought the firebox forward and over the drivers. So rebuilt, notes Carling, they may have been "nominally less powerful", but they were "more practical operating units."

Principal Dimensions by Steve Llanso of Sweat House Media

ClassFCC 110
Locobase ID4585
Number in Class
Road Numbers
Number Built
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.25 / 4.34
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)138,880 / 62,995
Engine Weight (lbs / kg)172,480 / 78,236
Tender Loaded Weight (lbs / kg)90,272 / 40,947
Total Engine and Tender Weight (lbs / kg)262,752 / 119,183
Tender Water Capacity (gals / ML)4800 / 18.18
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1475 / 5583
Minimum weight of rail (calculated) (lb/yd / kg/m)58 / 29
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)52 / 1321
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)20" x 28" / 508x711
Tractive Effort (lbs / kg)32,954 / 14947.70
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.21
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)201.50 / 18.73
Grate Area (sq ft / m2)37 / 3.44
Evaporative Heating Surface (sq ft / m2)2190 / 203.53
Superheating Surface (sq ft / m2)425 / 39.50
Combined Heating Surface (sq ft / m2)2615 / 243.03
Evaporative Heating Surface/Cylinder Volume215.10
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6660
Same as above plus superheater percentage7726
Same as above but substitute firebox area for grate area42,073
Power L110,760
Power MT683.23

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