19 July 2009

FMSR Class H

The FMSR Class H was the first FMSR class to consist of locomotives entirely ordered after the formation of the FMSR. Delivered in the form of three batches between 1907 and 1914, three companies, Kitson, Nasmyth Wilson and Robert Stephenson, would produce a total of 54 Class H locomotives for the FMSR, while another 6 were delivered to the Johore Railway in 1908 before its absorption together with the rest of Johore Railway into in the FMSR in 1912.

The Class H consisted of 4-6-2 locomotives with 8-wheel, dual bogie tenders. While nearly consistent in design, 11 1908 Class H locomotives from Kitson featured thicker frames that increased each of their weights by over 2½ tons.

The Class Hs may be distinguished by the order of the batch they were in: The first batch of 17 locomotives delivered between 1907 and 1908 were referred as "Class H1" locomotives, the second batch of 17 locomotives delivered between 1908 and 1912 were referred as "Class H2" locomotives, while the last batch of 15 locomotives received between 1913 and 1914 were referred as "Class H3" locomotives (of which two were redesignated as a "Class H4" locomotives in 1924).

The entire Class H fleet remain in service until the entire stock of Class H1s was scrapped between 1930 and 1934. The H2s and H3s were partially decommissioned before 1946, but were selected in limited numbers in 1946 for use in the Malayan Railways: Six H2s were numbered MR 501.01 to 501.06, while five H3s were numbered MR 501.07 and 501.11. The remaining 11 Class Hs remained in service at least before the 1960s and 1970s.

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