LNER Class Y11 was a class of petrol powered 0-4-0 locomotives built by Motor Rail & Tram Car Company Limited under their Simplex brand and introduced in the years 1919–1925, operating after its formation in 1922 on the London and North Eastern Railway (LNER). Their British Railways numbers were 15097-15099. It was known as LNER Z6 before 1943.

This article does not cite any sources. (January 2015)

LNER Class Y11
15098 at Stratford locomotive depot 1956
Type and origin Power type Petrol-mechanical Builder Motor Rail & Tram Car Co. Ltd. Model Simplex Build date 1919, 1920, 1925
Specifications Configuration: ​  • Whyte 0-4-0  • UIC B Wheel diameter 3 ft 1 in (0.940 m) Loco weight 8 long tons (8.1 t) Prime mover Dorman 4JO Engine type Petrol Transmission Mechanical, two-speed Dixon-Abbot, chain final drive Loco brake Air Train brakes None
Performance figures Maximum speed 7.2 mph (11.6 km/h) Power output 40 hp (30 kW) Tractive effort 3,750 lbf (16.7 kN)
Career Operators Great Eastern Railway, North British Railway, London and North Eastern Railway, British Railways Number in class 3 Axle load class Route Availability: 1 Retired 1950–1956 Disposition All scrapped

Numbering

• Works no. 1931, LNER no. 8430, re-numbered 8188, BR no. 15098 or 68188
  • Built 1919, acquired by LNER 1923 (ex-Great Eastern Railway), withdrawn in 1956
• Works no. 2037, LNER no. 8431, re-numbered 8189, BR no. 15099 or 68189
  • Built 1921, acquired by LNER 1923 (ex-North British Railway), withdrawn in 1956
• Works no. 2126, LNER no. ED/L4, BR no. 15097
  • Unknown built date acquired by LNER 1925 (ex-Preston Water Works, Lancashire), withdrawn in 1950
  • The RCTS document BRITISH RAILWAYS, NORTH EASTERN REGION, LOCOMOTIVE ALLOCATION, 6th May 1950 records this locomotive as working at West Hartlepool (Creosote Works).

Specification

• Wheel arrangement: 0-4-0
• Weight: 8 tons 0 cwt
• Wheel diameter: 3 ft 1in
• Min curve negotiable: 1 chain
• Engine type: Dorman 4JO (petrol)
• Engine output: 40 hp
• Power at rail: 24 hp
• Maximum speed: 7½ mph
• Brake type: Air on loco, no train brake
• Route Availability: 1
• Heating type: Not fitted
• Multiple coupling type: Not fitted
• Transmission: Mechanical, 2-speed Dixon Abbot

Preservation

None of the LNER Class Y11 locomotives has been preserved but several similar ones have, including:

• Works no. 2029 at the East Anglian Railway Museum
• Works no. 2028 at the Nottingham Transport Heritage Centre

Nottingham Transport Heritage Centre also has another Simplex numbered 15100. This is probably an "imaginary" British Railways number, continuing from 15099.

External links

• The Railway Centre – Technical details of 15097 - 15099^[Usurped!]
• LNER Encyclopedia
• East Anglian Railway Museum
• Nottingham Transport Heritage Centre