2-10-4

As Texas Tender steam locomotives are designated by the wheel arrangement 1'E2 ', ie with a leading barrel axis, five driving axles and a trailing bogie. Drive axle and bogie are movably mounted in the locomotive. In the Chicago, Burlington and Quincy Railroad in the U.S. locomotives of this type as "Colorado" and in Canada were called " Selkirk ".

These locomotives were mainly in North America. The trailing bogie allows the formation of a large-sized firebox that provides a high evaporation capacity of the boiler.

Known Types

The 1944 -built, oil-fired Class of 5011 ATSF was meant for heavy express freight trains in freight transport over long distances. Your drive wheels have a diameter of 1880 mm, so that their speed at the driven 120 km / h was moderate, the drive spared. The average axle load of the five driving axles is approximately 34.5 tons, so that a very powerful engine was available, the maximum continuous power at the hitch was PSe 5660, ie nearly 7000 hp engine performance with diesel locomotives.

When it is driven in the low speed range at full load, exerted at any of the two cylinders of the vehicle, a maximum compression force of nearly 100 tons to the drive pin of the drive axis, a value which has been reached by any engine world.

This follows from the parameters Driving wheel diameter 1880 mm, 172.4 tons of friction load and 864 mm Cylinder stroke. The cylinder diameter is 762 mm, the boiler pressure 21.8 bar. Despite these enormous constructively difficult to control forces the construction type proved also in the mountains very well. A main line of the ATSF over the Raton Pass had 3.3% slope. This by no means self-evident robustness is underlined by the fact that the Pennsylvania Railroad in 1956, ten of these locomotives loaned for the heavy coal transportation. Instead of the 160 cars of their own, purpose-built Texas design could actually for express freight service notional Class 5011 still almost 130 freight cars expect, or about 9500 tons.

The coal-fired locomotives with this wheel, which at the Chesapeake and Ohio Railroad (Grades T-1) and the Pennsylvania Railroad (Class J1) were in use, had driving wheels from 1753 mm in diameter and an additional booster. In flat terrain they carried coal trains scheduled, about 12,000 tonnes alone.

When the Texas and Pacific Railroad were with the class I- 1, the eponymous locomotives in use.

Swell

  • The Texas Type Locomotive (English)
  • Arnold Haas: steam locomotives in North America. United States and Canada. Franckh, Stuttgart 1978, ISBN 3-440-04493-9
  • Steam locomotive wheel arrangement 1E2
  • Steam locomotive
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