Santander-Timba 2-6-2 Locomotives in Colombia

Class Details by Steve Llanso of Sweat House Media

Class M J Olano (Locobase 15370)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 78, pp. 177+. See also Jorge Arias de Greiff, "Ferrocarriles en Colombia 1836-1930", Credencial Historica, No 257 at [] and page 2 of "El Ferrocarril del Pacifico" at the Universidad del Valle website, []. Works number was 58554

The Santander-Timba was started in 1917 to link the IbaguT end of the Ambalema-IbaguT with the Ferrocarril del Pacifico. Or, says the second source, it was built in Cauca state as 22-km (13.7 mile) link to join the FC Cali-Popayán with Santander de Quilichao; completion came in 1927.

In any event, the locomotive with the lowest number was this Prairie of exactly the same design as a pair shipped from Baldwin to the FC del Pacifico a dozen years earlier (Locobase 13728). When taken into the Pacifico upon the merger of the two lines in 1932, the 1 was renumbered 1T.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassM J Olano
Locobase ID15370
Number in Class1
Road Numbers1 / 1T
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.67 / 2.34
Engine Wheelbase (ft / m)21.33 / 6.50
Ratio of driving wheelbase to overall engine wheelbase 0.36
Overall Wheelbase (engine & tender) (ft / m)39.37 / 12
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)32,500 / 14,742
Engine Weight (lbs / kg)45,500 / 20,638
Tender Loaded Weight (lbs / kg)16,000 / 7257
Total Engine and Tender Weight (lbs / kg)61,500 / 27,895
Tender Water Capacity (gals / ML)800 / 3.03
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)2 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)18 / 9
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)11" x 16" / 279x406
Tractive Effort (lbs / kg)7314 / 3317.58
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.44
Heating Ability
Tubes (number - dia) (in / mm)63 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.50 / 3.20
Firebox Area (sq ft / m2)56 / 5.20
Grate Area (sq ft / m2) 7.30 / 0.68
Evaporative Heating Surface (sq ft / m2)400 / 37.16
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)400 / 37.16
Evaporative Heating Surface/Cylinder Volume227.29
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1168
Same as above plus superheater percentage1168
Same as above but substitute firebox area for grate area8960
Power L13709
Power MT754.79

All material Copyright ©
Wes Barris