Justin Rowlatt and Anita Rani set off across Russia on two massive road-trips, exploring both old and new Russia.
Runtime: 60 minutes
Russia on Four Wheels - 4-6-2 - Netflix
Under the Whyte notation for the classification of steam locomotives, 4-6-2 represents the wheel arrangement of four leading wheels on two axles, six powered and coupled driving wheels on three axles and two trailing wheels on one axle. The 4-6-2 locomotive became almost globally known as a Pacific type.
Russia on Four Wheels - Development - Netflix
The two earliest 4-6-2 locomotives, both created in the United States of America, were experimental designs which were not perpetuated. In 1887, the Lehigh Valley Railroad experimented with a 4-6-0 Ten-wheeler design with a Strong's patent firebox, a cylindrical device behind the cab which required an extension of the frame and the addition of two trailing wheels to support it. In 1889, the Chicago, Milwaukee and St. Paul Railway rebuilt a conventional 4-6-0 with trailing wheels as a means of reducing its axle load. In 1896, six Q class 4-6-2 tank locomotives were introduced on the Western Australian Government Railways. The first true Pacific, designed as such with a large firebox aft of the coupled wheels, was ordered in 1901 by the New Zealand Railways Department (NZR) from the Baldwin Locomotive Works of Philadelphia, Pennsylvania. The NZR Chief Mechanical Engineer, A.L. Beattie, ordered thirteen new Q class locomotives with a sufficiently large firebox that would be able to efficiently burn poor grade lignite coal from eastern South Island mines. Even before Baldwin had completed the order from New Zealand, their engineers realised the advantages of the new type and incorporated it into their standard designs for other customers. The design was soon widely adopted by designers throughout the world.
Russia on Four Wheels - References - Netflix