LNER Class Y1
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 They passed into British Railways ownership in 1948 and were numbered 68130-68153 [1] but 68134 was withdrawn almost immediately and may not have carried its BR number.
Contents
1 Power unit
2 Transmission
3 Sub-classes
4 Preservation
5 References
6 External links
Power unit[edit]
The superheated vertical water-tube boiler and the engine were similar to those used in Sentinel steam wagons. There were variations within the class as regards boiler size and fuel capacity and these were denoted by sub-classes Y1/1 to Y1/4.
The engines had poppet valves and reversing was by sliding camshaft. The advantage of the water-tube boiler was that steam could be raised much more quickly than with a conventional fire-tube boiler.
Transmission[edit]
Final drive to the wheels was by sprocket chain. Some engines had a gear ratio of 11:25 and some 9:25. Tractive effort was:
- Ratio 11:25, 7,260 lbf (68130-68142 and 68152-68153)
- Ratio 9:25, 8,870 lbf (68143-68151)
Sub-classes[edit]
- Y1/1, 68130-68135 and 68152 (total 7) [2]
- Y1/2, 68137, 68138, 68140-68151, 68153 (total 15) [3]
- Y1/3, 68139 (total 1) [4]
- Y1/4, 68136 (total 1) [5]
There is disagreement between sources. According to LNER Encyclopedia [6] there were six Y1/1s and sixteen Y1/2s.
Preservation[edit]
- Class Y1 number 68153 is preserved on the Middleton Railway.
References[edit]
^ Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, pp 46-47
^ http://www.railuk.info/steam/getsteamclass.php?item=Y1/1
^ http://www.railuk.info/steam/getsteamclass.php?item=Y1/2
^ http://www.railuk.info/steam/getsteamclass.php?item=Y1/3
^ http://www.railuk.info/steam/getsteamclass.php?item=Y1/4
^ http://www.lner.info/locos/Y/y1y3.shtml
External links[edit]
- Middleton Railway Stock List Sentinel
 | This article relating to steam locomotives operated in the United Kingdom is a stub. You can help Wikipedia by expanding it. |
Categories:
- Sentinel locomotives
- London and North Eastern Railway locomotives
- 0-4-0T locomotives
- Railway locomotives introduced in 1925
- Standard gauge steam locomotives of Great Britain
- United Kingdom steam locomotive stubs
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