MTH HO Scale 2-10-0 Russian Decapod Steam Locomotive w/PS2.0 - S - Santa Fe
Here is a MTH 20-80008A Santa Fe 2-10-0 Russian Decapod Steam Engine w/ProtoSound 2.0. For more information on this product, see the product specifications on the manufacturer's website.The Trainz SKU for this item is S11441691.Manufacturer: MTHModel Number: 20-80008AScale/Era: O scaleModel Type: Steam Loco
Under the Whyte notation for the classification of steam locomotives, a 2-10-0 is a locomotive with two leading wheels, generally in a radially swinging leading truck, and ten coupled driving wheels, five on each side. This arrangement was often named Decapod, especially in the United States, although this name was sometimes applied to locomotives of 0-10-0 "Ten-Coupled" arrangement.
The first Decapods built for the Lehigh Valley Railroad in 1867 proved too rough on the track because of their long coupled wheelbase, so one pair of drivers were removed. No more followed for 19 years, until the Northern Pacific Railway bought two for use on the switchbacks over Stampede Pass, while the 2-mile (3.2 km) tunnel was being built. In low-speed service where high tractive effort was critical, these Decapods were successful. Small numbers of other Decapods were built over the next twenty years, mostly for service in steeply graded mountainous areas where power at low speeds was the requirement. The type did not prove as popular as the successful Consolidation (2-8-0) type. Among Decapod users was the Santa Fe Railway. The engines were tandem compounds but their ongoing reversing limitations became the genesis of the 2-10-2 wheel arrangement.
The first boost in the number of Decapods occurred when Imperial Russia ordered approximately 1,200 Decapods from American builders during World War I. When the Bolshevik revolution occurred in 1917, 857 had already been delivered, but more than 200 were either awaiting shipment or were in the process of construction. These stranded locomotives were adopted by the United States Railroad Administration (USRA), the body created by the Government to oversee and control the railroads during the War, converted to American standards, and put to use on American railroads. Small and light-footed, these Russian decapods proved popular with smaller railroads, and many of them remained in service long after the USRA's control of the railroads ceased. Many indeed lasted until the end of steam on those railroads.
Swengel suggested the 2-10-0 arrangement was 'obsolete' by 1916, when the Pennsylvania Railroad (PRR) commenced an experiment with a 2-10-0 locomotive at its Juniata plant. Most 10 coupled engines constructed for U.S. railroads during World War 1 were of the USRA 2-10-2 arrangement, but the PRR committed to 122 of the 2-10-0s. Swengel argued this commitment to the 2-10-0, nicknamed "Deks", was controversial even in 1916, but it was even more so in 1922 when the PRR placed additional orders. The PRR was soon the biggest user of Decapods in the United States. The type was ideally suited to the Pennsy's heavily graded Allegheny Mountains routes, which required lugging ability according to tractive effort, not speed according to horse power.
The PRR bought 598 2-10-0s including 123 built at its own shops. In one of the largest locomotive orders ever, the rest came from the Baldwin Locomotive Works. The PRR 2-10-0s weighed 386,100 lb (175.1 t) and developed 94,024 lbf (418.2 kN) of tractive effort with an axle loading of over 70,000 lb (32 t). The engines steamed at 250 psi (1.72 MPa) and had a relatively large superheater. The grate area of about 70 sq ft (6.5 m2) was on the small side, but a mechanical stoker partly compensated for this. The debate about whether the PRR's 2-10-0s were the best of their kind, predicted Swengel, "must remain a great unknown."
The PRR decapod, class I1s, was unlike the Russian decapod; it was huge, taking advantage of the PRR's heavy trackage and high axle loading, with a fat, free-steaming boiler that earned the type the nickname of 'Hippos' on the PRR. Two giant cylinders (30½ x 32 inch) gave the I1s power and their giant tenders permitted hard and long workings between stops. They were unpopular with the crews, for they were hard riding. Indeed, one author described them as the holy terror of the PRR. The last operations on the PRR were 1957.
A small number of other Decapods were ordered by other railroads; those built for the Western Maryland Railroad were the largest ever built, at almost 420,000 lb (190 t) weight.
Baldwin developed two standard 2-10-0s for railroads with low axle-load requirements. The heavier version sold to the Gulf, Mobile and Northern Railroad (#250–265), and the Kansas City, Mexico and Orient Railway (#800–805). The lighter version sold to the Alabama, Tennessee and Northern Railroad (#401–403), Georgia, Florida and Alabama Railway, the Great Western Railway, the Osage Railway, Seaboard Air Line Railroad, and the Durham and Southern Railway, who bought three — Nos. 200–201 in May 1930 and No. 202 in September 1933.
Thirteen Decapod locomotives survive in the USA, including two Baldwin standards, six Russian Decapods and one PRR I1s. Two, Great Western Railway 90 at the Strasburg Rail Road, and one Russian decapod at the Illinois Railway Museum, are operational. One Decapod survives as a static exhibit at the North Carolina Transportation Museum in Spencer, North Carolina(Seaboard Airline 2-10-0 #544)
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