LCDR A class

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LCDR A class
LCDR A1 and A2 classes
Type and origin
Power type Steam
Designer William Kirtley
Build date 1884
Total produced
  • A: 18
  • A1: 12
  • A2: 6
Specifications
Configuration:
 • Whyte 0-4-4T
 • UIC B2′ n2t
Gauge 4 ft 8 12 in (1,435 mm)
Driver dia.
  • A: 5 ft 3 in (1.600 m)
  • A1/A2: 5 ft 6 in (1.676 m)
Trailing dia. 3 ft 0 in (0.914 m)
Loco weight 51 long tons (51.8 t)
Fuel type Coal
Fuel capacity 2 long tons (2.0 t)
Water cap 970 imp gal (4,400 l; 1,160 US gal)
Firebox:
 • Firegrate area
16 12 sq ft (1.53 m2)
Boiler:
 • Tube plates
  • A: 11 ft 3 in (3,430 mm)
  • A1, A2: 11 ft 0 in (3,350 mm)
 • Small tubes
  • A: 202 x 1 34 in (44 mm)
  • A1: 197 x 1 34 in (44 mm)
  • A2: 199 x 1 34 in (44 mm)
Boiler pressure 150 psi (1.03 MPa)
Heating surface
  • A: 1,148 12 sq ft (106.70 m2)
  • A1: 1,087 sq ft (101.0 m2)
  • A2: 1,095 sq ft (101.7 m2)
 • Tubes
  • A: 1,051 sq ft (97.6 m2)
  • A1: 993 sq ft (92.3 m2)
  • A2: 995 sq ft (92.4 m2)
 • Firebox
  • A: 97 12 sq ft (9.06 m2)
  • A1: 94 sq ft (8.7 m2)
  • A2: 100 sq ft (9.3 m2)
Cylinders Two, inside
Cylinder size
  • Originally: 17 12 in × 26 in (444 mm × 660 mm)
  • Rebuilt: 18 in × 26 in (457 mm × 660 mm)
Valve gear Stephenson
Performance figures
Tractive effort
  • A: 17,049 lbf (75.8 kN)
  • A1/A2: 16,274 lbf (72.4 kN)
Career
Operators LCDR · SECR · SR
Class A, A1, A2
Number in class 1 January 1923:
A, 17; A1, 12; A2, 6
Withdrawn 1915–1926
Disposition All scrapped

The LCDR A class was a class of 0-4-4T steam locomotives of the London, Chatham and Dover Railway. The class was designed by William Kirtley and introduced in 1884. The A1 and A2 classes were similar, but had larger driving wheels.[1] The differences between the A1 and A2 classes were minor: in particular, the A2 class had a larger heating surface.[2]

Numbering[edit]

Table of locomotives[3]
Class Manufacturer Serial nos. Date built LCDR nos. SECR nos. Notes
A Neilson & Co. 1988–1996 Jul – Oct 1875 101–109 560–568 No. 570 withdrawn 1915
A Vulcan Foundry 750–755 Aug – Nov 1875 110–112, 65–70 569–571, 524–529
A1 Kitson & Co. 2300–2311 Feb – May 1880 163–174 622–633
A2 Robert Stephenson & Co. 2491–2496 Sep 1893 – Feb 1884 75–80 534–539

Ownership changes[edit]

All the A, A1 and A2 class locomotives passed to the South Eastern and Chatham Railway in 1899. Number 570 was withdrawn in 1915 but the remaining locomotives passed to the Southern Railway in 1923. All had been withdrawn by 1926.

References[edit]

  1. ^ Casserley & Johnston 1974, p. 9.
  2. ^ Bradley 1979, p. 81.
  3. ^ Bradley 1960, pp. 32–33.