LCDR R1 class

R1 class

300px No. 1706 at London Bridge, March 1948

Type and origin Power type Steam Builder Sharp, Stewart & Co. Serial number 4668–4682 Total produced 15

Specifications Configuration 0-4-4T Gauge 4 ft 8 1⁄2 in (1,435 mm) Driver diameter 5 ft 6 in (1.676 m) Trailing dia 3 ft 6 in (1.067 m) Wheelbase 21 ft 10 in (6.65 m) Axle load 16 long tons (16 t) Adhesive weight 31.3 long tons (31.8 t) Loco weight 51.45 long tons (52.28 t) Fuel type Coal Fuel capacity 2 long tons (2.0 t) Water cap 1,100 imp gal (5,000 L; 1,300 US gal) Boiler pressure 155 psi (1,070 kPa) Firegrate area Heating surface 1,071 sq ft (99.5 m2)  • Tubes 972 sq ft (90.3 m2)  • Firebox 99 sq ft (9.2 m2) Cylinders Two, inside Cylinder size Train brakes Vacuum & Westinghouse

Career Operators South Eastern and Chatham Railway → Southern Railway → British Railways Class R1 Power class BR: 1P Numbers SE&CR: 696–710 SR: A696–A710 → 1696–1710 BR: 31696–31710 First run November–December 1900 Withdrawn 1929–56 Disposition All scrapped

The LCDR R1 class was a class of 0-4-4T locomotives on the South Eastern and Chatham Railway, which were based on an existing London, Chatham and Dover Railway design.

History

For many years the two constituents of the South Eastern and Chatham Railway (SECR) - the London, Chatham and Dover Railway (LCDR) and the South Eastern Railway (SER) - had both favoured the 0-4-4T wheel arrangement for suburban and stopping passenger trains. The SER's most recent design was James Stirling's Q class 0-4-4T, which had been produced between 1881 and 1897, whereas the LCDR had the more modern R class 0-4-4T of William Kirtley's design, which dated from 1891. When more 0-4-4T engines were required soon after the formation of the SECR in 1899, the company had two options: to build more of either or both of the existing designs, or to produce a new design. It was intended that a range of standard designs would be produced which would be suitable for use across the whole SECR system, however until these were ready, it was decided to order more of the LCDR's existing R class design, but with modifications.

Numbering

Fifteen of these locomotives were built by Sharp, Stewart & Co in 1900; their SECR numbers were 696–710 – nos. 696–705 were for use on the former LCDR routes, whilst nos. 706–710 were for the old SER system. Originally they were included in the R class, but were separated into a new R1 class in January 1901. No more were built, because by the time that further 0-4-4Ts were required, Wainwright's H class design was ready; it owed much to the R1 class.

Renumbering

The R1 class locos were renumbered three times: to A696-710 by the Southern Railway (SR) from 1923; to 1696-1710 by the SR from 1931; and to 31696-31710 by British Railways from 1948.

Withdrawal

Two (nos. A701 and A702) were withdrawn in 1929, and withdrawal of the rest occurred between 1949 and 1956.