No. 1535 Henry Maudslay
Under the Whyte notation for the classification of steam locomotives, 2-2-2-2 could represent either the wheel arrangement of two leading wheels, four powered but uncoupled driving wheels, and two trailing wheels; or of two independent leading axles (not in a bogie truck), two driving wheels, and two trailing wheels.
Usage
[edit]The (2-2)-2-2 wheel arrangement, or (2-2) -2-2,[1] was first used on five locomotives introduced on the Eastern Counties Railway by John Chester Craven in 1846/7.[2]
The 2-(2-2)-2 version was used by Francis Webb of the London and North Western Railway between 1885 and 1887 on two unique divided drive compound tank locomotives, No. 687 (1885) and No. 600 (1887). He then produced two tender engine classes each of ten locomotives: the LNWR Greater Britain Class (1892–1894) and the LNWR John Hick Class (1894–1898). The locomotives were never reliable and Webb's successor George Whale withdrew them all within three years of taking up office in 1903.[3]
See also
[edit]References
[edit]- ^ Baxter, Bertram (1977). British locomotive catalogue 1825-1923. Vol. 1. Buxton: Moorland Publishing. pp. 45 & 67. ISBN 978-0-903485-50-0.
- ^ Baxter (1977), p. 45.
- ^ Baxter, Bertram (1979). British locomotive catalogue 1825-1923. Vol. 2B. Moorland. p. 196.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction