Several 2-8-0 Locomotives in Spain


Class Details by Steve Llanso of Sweat House Media

Class 140-2068 (Locobase 3373)

RENFE grouped several railroads' worth of identical locomotives under a single class -- included were Norte's 400, 4700, 4800, & 4900 series; Oeste's 891-899, and Murcia-Caravaca 6,7, & 4777.

Developed, says Reder (1974), to provide more pulling power on the Guadarrama grades and Cantabrian mountain routes while allowing a decent turn of speed on the flat, these engines had relatively tall drivers for a Consolidation. All but 80 engines had Walschaerts valve gear, straight boiler barrels and a Belpaire firebox. OS Nock's RWC IV, pl 166 shows a lumpy profile with large domes, auxiliary tanks, air pumps, and pipes. The last 80 -- Norte 4837-4916/RENFE 140-2392-2471 -- had Lentz poppet gear and boiler pressure raised to 184 psi (13 bar), and Kylchap exhaust.

This design was rated at 275 tons up the Guadarrama section and 360 tons (freight), 260 tons (passenger) over the mountains.

So successful were they that construction continued from 1909 to 1943. The first 127 came from builders in Belgium -- St Leonard (72, including the first 50), Cockerill (10) -- and Germany -- Maffei (20), Linke Hoffmann (15), and Hanomag (10). Beginning in 1924, Spanish locomotive shops took over the task. These included Babcock & Wilcox (165), Euskalduna (122), Sociedad de Construcciones En Naval (14), and MTM (10).

Principal Dimensions by Steve Llanso of Sweat House Media

Class140-2068
Locobase ID3373
RailroadSeveral
CountrySpain
Whyte2-8-0
Number in Class438
Road Numbersseveral
Gauge5'6"
Number Built438
Builderseveral
Year1909
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)16.99 / 5.18
Engine Wheelbase (ft / m)25.75 / 7.85
Ratio of driving wheelbase to overall engine wheelbase 0.66
Overall Wheelbase (engine & tender) (ft / m)48.28 / 14.71
Axle Loading (Maximum Weight per Axle) (lbs / kg)35,693 / 16,190
Weight on Drivers (lbs / kg)142,176 / 64,490
Engine Weight (lbs / kg)170,836 / 77,490
Tender Loaded Weight (lbs / kg)79,366 / 36,000
Total Engine and Tender Weight (lbs / kg)250,202 / 113,490
Tender Water Capacity (gals / ML)3641 / 13.79
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 6.60 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)59 / 29.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)61.40 / 1560
Boiler Pressure (psi / kPa)171.10 / 11.80
High Pressure Cylinders (dia x stroke) (in / mm)24.02" x 25.59" / 610x650
Tractive Effort (lbs / kg)34,972 / 15863.05
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.07
Heating Ability
Tubes (number - dia) (in / mm)173 - 1.969" / 50
Flues (number - dia) (in / mm)24 - 5.236" / 133
Flue/Tube length (ft / m)16.40 / 5
Firebox Area (sq ft / m2)158.23 / 14.70
Grate Area (sq ft / m2)32.83 / 3.05
Evaporative Heating Surface (sq ft / m2)1986 / 184.50
Superheating Surface (sq ft / m2)502 / 46.65
Combined Heating Surface (sq ft / m2)2488 / 231.15
Evaporative Heating Surface/Cylinder Volume147.97
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5617
Same as above plus superheater percentage6741
Same as above but substitute firebox area for grate area32,488
Power L19517
Power MT590.29

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