2-8-8-8-2

The Matt H. Shay.

Under the Whyte notation for the classification of steam locomotives, a 2-8-8-8-2 has two leading wheels, three sets of eight driving wheels, and two trailing wheels. Because of its length, such a locomotive must be an articulated locomotive. It is not longer than a normal articulated; the third set of drivers is located under the tender. All of the examples produced were a Triplex of the Mallet type.

Other equivalent classifications are:

UIC classification: (1'D)D(D1')
AAR classification: 1-D-D-D-1
French classification: 140+040+041
Turkish classification: 45+44+45
Swiss classification: 4/5+4/4+4/5

Baldwin built the only three examples of the type for the Erie Railroad between 1914 and 1916.[1][2] The first was named Matt H. Shay, after a beloved employee of that road.[1] It could pull 650 freight cars.[3] All three, as well as the lone 2-8-8-8-4 and several Virginian Railway electrics, shared the nickname "Triplex" because of their three sets of drivers. (Compare Duplexes, which had two sets.)

References

  1. 1 2 Westing (1966), pp. 124–125.
  2. ↑ Self, Douglas. "Triplex Locomotives". www.aqpl43.dsl.pipex.com. Retrieved 8 May 2016.
  3. ↑ "A titan of the rails". The Independent. July 27, 1914. Retrieved July 24, 2012.

Bibliography

  • Westing, Frederick (1966), The locomotives that Baldwin built. Containing a complete facsimile of the original 'History of the Baldwin Locomotive Works, 1831–1923', Crown Publishing Group, ISBN 978-0-517-36167-2, LCCN 66025422
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