4-4-2 (locomotive)

With Atlantic Tender steam locomotives are designated with the wheel arrangement 2'B1 or 2'B1 ', ie with a leading bogie, two driving axles and a drive shaft, which can be mounted either fixed or movable in the frame.

Your name is of the type supplied by the five in 1894 to the Atlantic Coast Line Railroad Locomotives - apart from an experimental locomotive with corrugated tube firebox, the first designed from the outset as 2'B1 machines. Some derive the name from the two 1896 procured from the Atlantic City Railroad machines.

In 1895 appeared with the series IId of the Austrian Emperor Ferdinand Northern Railway, the Atlantic and in Europe; the development had gone here, regardless of the in the United States.

The Atlantic is a transitional form between the type American ( 2'B ) and the Pacific ( 2'C1 ') and was built in comparatively small numbers, because the tension of the two driving axles soon no longer sufficient. In the time of the Atlantics, the transition fell from wooden to steel -built railroad cars, so that the trains were much more difficult in a short time. In continental Europe, where the permissible axle loads were lower than in the U.S. or the UK, most Atlantics disappeared so early as the 1920s.

Worldwide only 3544 Atlantics were built - including some conversions from 2'B, 1'B1 ' and 2'B2 '. 60 % of which ran in North America, 12% in Germany. Although Atlantics were built 1887-1939, but the real heyday of these vehicles was much shorter. Nearly 3,000 of the locomotives emerged in the first decade of the 20th century, and built four 1935-1937 Giant Atlantics Class A of the Milwaukee Road and 1939 in Belgium built, also streamlined clad Atlantics the 12 series were special designs at a time as long Pacific and even Hudson locomotives ( 2'C2 ') dominated the express train service.

The Atlantics are some of the fastest steam locomotives ever. Across the Pacific and Atlantic Hudson has the advantage of lower engine masses, which allowed smoother running at high speeds. Notable Quick trips are mainly known from American Atlantics; so should one of the E2 class of the Atlantic have achieved in 1905, 204.5 km / h of the Pennsylvania Railroad, a value which is sometimes expressed in the United States as the highest ever reached by a steam locomotive speed. A Camelback Atlantic the Philadelphia and Reading Railroad is expected to reach 193 km / h in 1909 after all.

While these speeds - especially those of the E2 - be questioned by experts because the locomotives were constructed not muster the necessary power can, the 183 km / h, the one Atlantic PRR class E6s has (lower panel ) in 1927 reached well documented. The fastest Atlantic but was ever very likely the already mentioned class A of the Milwaukee Road, the speeds are up to 209 km / h rumored, which is more than capable of the design perfectly. The also mentioned Belgian number 12 was 165 km / h fastest Atlantic outside the U.S. as well as the fastest steam locomotive in Belgium.

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