Norte 4-8-2 Locomotives in Spain


Class Details by Steve Llanso of Sweat House Media

Class 241-4001 (Locobase 3397)

Data from [link] . Reder (1974) credits this De Glehn-type compound to Adolf Wolff of Hanomag, which built the first six; the other 60 were supplied by Spanish builders such as Babcock & Wilcox, Euskalduna, and Maquinista (MTM).

Builder Works numbers Road numbers

Hanomag 10495-10500 in 1925 4601-4606

Euskalduna 49-56 in 1927 4607-4614

Babcock & Wilcox 211-217 in 1927 4615-4621

La maquinista 355-359 in 1927 4622-4626

Babcock & Wilcox 281-285 in 1928 4627-4631

Euskalduna 124-128 in 1928, 4632-4636

179-188 in 1930 4637-4346

Babcock & Wilcox 49-358 in 1930 4647-4656

They had long boilers with two sand domes flanking the steam dome. The outside HP cylinders drove the second axle. The engines, the first compound Mountains in regular service in Europe, ran from Madrid to Miranda non-stop using two firemen.

In Lineas Del Tren (#290, 5 May 2003) [Por que llegaron a Espana las 1-4-1 Mikados francesas? reproduced on [link], accessed 7 Dec 2005], Angel Maestro credits this class with handling 360 tonnes of train over the El Escorial-La Canada line, which featured a ruling grade of 2.1%. On the flatter profile between Venta de Banos and Valladolid, they were rated at 600 tonnes.

Twenty-eight more were supplied to RENFE between 1946-1948, but these were based on a modified 4600-series (See 241-4048). that had seen internal streamlining a la Chapelon, Chapelon's Kylchap blast pipe, and the Dabeg poppet valve gear.

Principal Dimensions by Steve Llanso of Middle Run Media
Class241-4001
Locobase ID3397
RailroadNorte
CountrySpain
Whyte4-8-2
Number in Class66
Road Numbers4601-4656,4690-4699
Gauge5'6"
Number Built66
Builderseveral
Year1925
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)18.21 / 5.55
Engine Wheelbase (ft / m)41.58 / 12.68
Ratio of driving wheelbase to overall engine wheelbase 0.44
Overall Wheelbase (engine & tender) (ft / m)69.72 / 21.25
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)154,323 / 70,000
Engine Weight (lbs / kg)249,343 / 113,100
Tender Loaded Weight (lbs / kg)119,049 / 54,000
Total Engine and Tender Weight (lbs / kg)368,392 / 167,100
Tender Water Capacity (gals / ML)5721 / 21.67
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 7.70 / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)64 / 32
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68.90 / 1750
Boiler Pressure (psi / kPa)232.10 / 1600
High Pressure Cylinders (dia x stroke) (in / mm)18.11" x 26.77" / 460x680
Low Pressure Cylinders (dia x stroke) (in / mm)27.56" x 26.77" / 700x680
Tractive Effort (lbs / kg)35,116 / 15928.37
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.39
Heating Ability
Tubes (number - dia) (in / mm)132 - 2.165" / 55
Flues (number - dia) (in / mm)36 - 5.236" / 133
Flue/Tube length (ft / m)18.90 / 5.76
Firebox Area (sq ft / m2)251.88 / 23.40
Grate Area (sq ft / m2)53.82 / 5
Evaporative Heating Surface (sq ft / m2)2411 / 223.98
Superheating Surface (sq ft / m2)1074 / 99.81
Combined Heating Surface (sq ft / m2)3485 / 323.79
Evaporative Heating Surface/Cylinder Volume302.09
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation12,492
Same as above plus superheater percentage16,364
Same as above but substitute firebox area for grate area76,584
Power L119,231
Power MT1098.92

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