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South Australian Railways T class. A new class of 4-8-0 locomotive, the T class, designed in South Australia for use on the narrow gauge 3 ft 6 in (1,067 mm) gauge system of the South Australian Railways, was introduced in 1903. It proved to be a suitable workhorse and by 1917 there were 78 locomotives in the class.
The first 4-8-2 in Australia was the 3 ft 6 in (1,067 mm) gauge Q class of the Tasmanian Government Railways. Nineteen were built in batches between 1922 and 1945 by Perry Engineering in South Australia, Walkers Limited of Maryborough, Queensland and Clyde Engineering of New South Wales.
Euclidean tilings are usually named after Cundy & Rollett’s notation. [1] This notation represents (i) the number of vertices, (ii) the number of polygons around each vertex (arranged clockwise) and (iii) the number of sides to each of those polygons. For example: 3 6; 3 6; 3 4.6, tells us there are 3 vertices with 2 different vertex types ...
Union Pacific 844, the only steam locomotive never retired by a North American Class I railroad. The 4-8-4 wheel arrangement was a progression from the 4-8-2 Mountain type and, like the 2-8-4 Berkshire and 4-6-4 Hudson types, an example of the "Super Power" concept in steam locomotive design that made use of the larger firebox that could be supported by a four-wheel trailing truck, which ...
ASTM F568M. ASTM F568M is an ASTM International standard for metric bolts, screws and studs that are used in general engineering applications. It is titled: Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners. It defines mechanical properties for fasteners that range from M1.6 to 100 in diameter.
4 cylinder. 1904–1906 Ford Model B (1904) engine. 1906–1908 Ford Model N /R/S engine. 1908–1927 Ford Model T engine. 1928–1931 Ford Model A engine (also see Ford Model A (1927-1931)) 1932–1934 Ford Model B engine (see Ford Model B (1932)) 1932–1962 Ford Sidevalve.
IEEE 802.11-2020, which was known as IEEE 802.11 REVmd, [72] is a revision based on IEEE 802.11-2016 incorporating 5 amendments (11ai, 11ah, 11aj, 11ak, 11aq). In addition, existing MAC and PHY functions have been enhanced and obsolete features were removed or marked for removal.
v. t. e. The Modified Mercalli intensity scale (MM, MMI, or MCS) measures the effects of an earthquake at a given location. This is in contrast with the seismic magnitude usually reported for an earthquake. Magnitude scales measure the inherent force or strength of an earthquake – an event occurring at greater or lesser depth. (The " Mw ...