Data from [] . 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 [], 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 | |
---|---|
Class | 241-4001 |
Locobase ID | 3397 |
Railroad | Norte |
Country | Spain |
Whyte | 4-8-2 |
Number in Class | 66 |
Road Numbers | 4601-4656,4690-4699 |
Gauge | 5'6" |
Number Built | 66 |
Builder | several |
Year | 1925 |
Valve Gear | Walschaert |
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 Volume | 302.09 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 12,492 |
Same as above plus superheater percentage | 16,364 |
Same as above but substitute firebox area for grate area | 76,584 |
Power L1 | 19,231 |
Power MT | 1098.92 |