South African type ZB tender
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(H.M. Beatty)
Type ZB tender on CGR 7th Class of 1892 | |||||||||||||||||||||||||||||
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The South African type ZB tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.
The Type ZB tender entered service in 1892, as tenders to the second batch of 7th Class 4-8-0 Mastodon type steam locomotives to be acquired by the Cape Government Railways. These locomotives were designated Class 7 on the South African Railways in 1912.[1][2][3]
The Types ZA and ZB tenders were both introduced in 1892 as tenders to the original Cape Government Railways (CGR) 7th Class 4-8-0 Mastodon type locomotive, which was built in two batches. Six engines were built by Dübs and Company in 1892, and 32 by Neilson and Company in 1892 and 1893. Since a Neilson works picture shows one of the Neilson-built batch of locomotives with a three-axle tender, it is likely that the larger-capacity Type ZB three-axle tenders were delivered with the second batch of 32 7th Class locomotives, built by Neilson.[2][3]
The locomotive and tender were designed at the Salt River works in Cape Town in 1892, under the supervision of H.M. Beatty, the CGR Western System's Locomotive Superintendent.[1][2][3]
The Type ZB entered service as tenders to these locomotives, all of which were initially placed in service on the Midland System of the CGR, but were later distributed between the Midland and Eastern Systems. These engines would be designated Class 7 on the South African Railways (SAR) in 1912.[1][2][3]