LNER Class Y1
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The LNER Class Y1 was a class of 0-4-0 geared steam locomotives built by Sentinel Waggon Works for the London and North Eastern Railway and introduced in 1925. They passed into British Railways ownership in 1948 and were numbered 68130-68153.
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[edit] Overview
The vertical water-tube boiler and the engine were similar to those used in Sentinel steam waggons. Final drive to the wheels was by sprocket chain. There were variations within the class as regards boiler size, fuel capacity and gear ratio.
[edit] Dimensions
- Locomotive weight, from 14 tons 0 cwt to 20 tons 17 cwt
- Boiler pressure, 275 psi
- Superheater, Yes
- Cylinders, 6.75"x9"
- Valve gear, Sliding camshaft (poppet valves)
- Sprocket gear ratio, 11:25 or 9:25
- Driving wheel diameter, 2' 6"
- Tractive effort:
- Ratio 11:25, 7,260 lb
- Ratio 9:25, 8,870 lb
[edit] Preservation
- Class Y1 number 68153 is preserved on the Middleton Railway.
[edit] Sources
- Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, pp 46-47
[edit] External links
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