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Tuesday, December 8, 2009

Bachmann N Scale 4-8-4 Northern Locomotive - Santa Fe

Bachmann N Scale Ready To Run 4-8-4 Northern Locomotive w/52' Tender - Santa Fe

Product Features

4-8-4 steam locomotive with operating headlight
52' tender

Product Description

Bachmann's N Scale Northern 4-8-4 Steam Locomotive and 52' Santa Fe Tender. / For train collectors age 8 and over. / / FEATURES: For use with all N scale equipment. / Northern 4-8-4 lighted steam locomotive. Motor w/worm and chassis / side frames. / Die cast motor cover and loco weight. / Locomotive is black w/A.T.& S.F. in white on the sides of the cab. / Chrome drive wheels and rods. / Black 52' tender w/Santa Fe 3780 in white on the sides, and traction / tires. / Locomotive has a lifetime limited warranty. / Bachmann quality since 1833. / Instruction sheet included. / Train pieces come embedded within a styrofoam tray, which slides into / a windowed cardboard box. / / INCLUDES: One Bachmann N Scale Norhtern 4-8-4 Steam Locomotive / One Bachmann N Scale 52' Santa Fe Tender / / REQUIRES: N Scale Train Track / Maintenance Equipment / Adult Supervision / / SPECS: Scale: N 1:160 / Locomotive Size- Tender Size- / Length: 5-1/4" (13.3cm) Length: 4" (10.1cm) / Width: 3/4" (1.9cm) Width: 3/4" (2cm) / Height: 1-1/4" (3.2cm) Height: 1" (2.5cm)

The 4-8-4 was first used by the Northern Pacific Railway and the type was thereafter named "Northern". Most railroads used this name, but a number adopted different titles, including Confederation (Canadian National), Golden State (Southern Pacific), Niagara (New York Central and NdeM), Pocono (DL&W), Wyoming (Lehigh Valley Railroad), Dixie (NC&StL), Big Apple (Central of Georgia Railway), Greenbrier (Chesapeake and Ohio Railway), Western (D&RGW), Potomac (Western Maryland Railway) while the RF&P gave each of its three classes a separate title: General, Governor and Statesman.

Although locomotives of the 4-8-4 wheel arrangement were used in a number of countries, those developed outside the Americas included various design features which set them apart from North American practice. The United States, Canada and Mexico were the home of the American 4-8-4, and scaled down examples of the type were exported by two American builders for metre gauge lines in Brazil.

The Northern type evolved in the United States soon after the Lima Locomotive Works introduced the concept of “Lima Super Power” in 1925. The Northern Pacific Railway prototype was built by Alco in 1927 to Super Power principles, with a four-wheel trailing truck to carry the weight of a very large firebox designed to burn low quality lignite coal. But the potential of supporting a firebox with a 100-square-foot (9.3 m2) grate on a four-wheel trailing truck was quickly seen, as given the additional weight of approximately 15,000 lb (6.8 t) over the two-wheel truck, the four wheel truck could carry an additional 55,000 lb (25 t) engine weight. So the difference of 40,000 lb (18 t) was available for increased boiler capacity, or in other words, the power plant of the locomotive.

The Northern type came at a time when nearly all the important design improvements had been proven, such as the superheater, mechanical stoker, outside valve gear, the Delta trailing truck and the one-piece bed frame of cast steel with integral cylinders, which did so much to advance the application of roller bearings on locomotives since it gave the strength and rigidity to hold them in correct alignment. Indeed, in 1930 the Timken Company used a 4-8-4 with roller bearings an all axles, which they classified Timken 1111, to demonstrate the value of their roller bearings over nearly every main line in the United States. It was subsequently sold to the Northern Pacific Railway.

The stability of the 4-8-4 enabled it to be provided with driving wheels up to 80 inches (2.0 m) diameter for high speed passenger and fast freight operation, and with the latest lateral control devices, the type was flexible on curves. The increased boiler size possible with this type, together with the high axle loads permitted on main lines in North America, led to the design of some massive locomotives, with all up weights exceeding 350 tons.

The Northern type was purchased by 36 railroads in the Americas, including 31 railroads in the United States, three in Canada, one in Mexico and two in Brazil. In all, there were less than 1,200 engines[2] of this type, compared with approximately 2,500 Mountain types and 6,800 Pacific types built in the United States. By far the largest fleet was owned by the Canadian National Railway and its subsidiary the Grand Trunk Western Railroad, with 203 engines. Other major owners were the Chicago, Rock Island and Pacific Railroad with 85, the Southern Pacific Railroad with 74, the Atchison, Topeka and Santa Fe Railway with 65, the Delaware, Lackawanna and Western Railroad with 56, the Chicago, Milwaukee, St. Paul and Pacific Railroad with 53, and the Union Pacific Railroad with 45. The Pennsylvania Railroad did not own any 4-8-4 steam locomotives but, the Pennsy had an electric 4-8-4. This was the PRR R1 electric.

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