British Rail Class 98

Classification and characteristics

The TOPS scheme was a computerised fleet numbering and management system adopted by British Rail in the 1970s to standardise identification of locomotives and rolling stock. Under that scheme, steam power did not receive the same volume of detailed sub‑classification as modern traction, and surviving steam examples were placed in Class 98. The locomotives most commonly associated with the designation are narrow‑gauge 2‑6‑2T (prairie tank) engines, characterised by a pair of leading wheels, three coupled axles, and a trailing wheelset supporting the tank and bunker arrangement.

Vale of Rheidol Railway locomotives

On the Vale of Rheidol Railway, a scenic narrow‑gauge line in Wales, three such 2‑6‑2T locomotives remained the legal property of British Rail after the withdrawal of standard mainline steam. These engines continued to operate on the preserved line while still carrying BR ownership paperwork and, uniquely, they were the only steam locomotives officially painted in British Rail corporate blue and marked with the double‑arrow logo during that era. For background on the corporate numbering system see TOPS, and for information about the line itself see the Vale of Rheidol Railway entry here.

History and context

Routine steam traction on the national network ceased in the late 1960s; the official end of mainline steam operations is commonly dated to August 1968. Despite this, a few steam locomotives remained in service on isolated or heritage lines, and some continued to be owned or administered by BR rather than private preservation societies. The Vale of Rheidol examples retained their BR status for several years after 1968 and are frequently cited when discussing the final phase of British Rail steam policy. See a concise note on the 2‑6‑2T arrangement here and on British Rail corporate identity here. The date often used to mark the end of mainline steam is referenced here.

Use, preservation and legacy

These locomotives served both practical and symbolic roles: they hauled tourist services on the Vale of Rheidol line while also representing a living link to the steam era under the banner of a national operator. After eventual transfer into private or heritage ownership, the locomotives continued in preservation, attracting enthusiasts and tourists. Their unusual status as BR‑owned steam engines in corporate livery makes them a frequent subject in accounts of British railway transition from steam to diesel and electric traction.

Notable facts

• Class 98 is the primary TOPS identifier used for steam locomotives associated with British Rail.
• The Vale of Rheidol 2‑6‑2T engines were the only steam locos officially carrying BR blue and the double‑arrow logo.
• They illustrate how a handful of steam engines continued in BR service after the formal end of routine mainline steam in August 1968.

For further reading about classification systems, heritage lines and preserved steam, follow the topical links above or consult specialist publications on British railway motive power and preservation.