LNER Class Y11

LNER Class Y11
Power type	Petrol-mechanical
Builder	Motor Rail & Tram Car Co. Ltd.
Model	Simplex
Build date	1919, 1920, 1925
Configuration	0-4-0
UIC classification	B
Wheel diameter	3 ft 1 in (0.940 m)
Locomotive weight	8 long tons (8.1 t)
Prime mover	Dorman 4JO
Engine type	Petrol
Transmission	Mechanical, two-speed Dixon-Abbot, chain final drive
Top speed	7.2 mph (11.6 km/h)
Power output	40 hp (30 kW)
Tractive effort	3,750 lbf (16.7 kN)
Locomotive brakes	Air
Train brakes	None
Career	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	Unknown

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 for the London and North Eastern Railway (LNER). Their British Railways numbers were 15097–15099.