WOS class bulk superphosphate wagons

The WOS class arose as a result of dedicating vehicles to particular traffics in the late 1980s. In this case the class was formed from WO and WOA  class wagons formerly used for Iron Ore.

198?

WO 31204, 31205, 31209, 31212, 31216, 31218, 31219, 31225, 31226, 31230, 31232, 31234, 31235, 31236, 31241, 31243, 31247, 31250, 31258, 31271, 31272, 31274, 31275, 31282, 31283, 31285, 31288, 31289, 31290, 31292, 31293, 31294, 31299, 31402, 31404, 31406, 31410 to WOS

1989

WO 31207, 31220, 31252, 31257, 31261, 31270, 31277, 31291, 31403, 31409 to WOS

WOG 31260 to WOS

1990

WOG 31213, 31248 to WOS

In 1994 reverted to class WO. The ones that I can't trace are: WOS 31250, 31270, 31277, 31402, 31409

1994 WOS 31204, 31205, 31207, 31209, 31212, 31213, 31216, 31218, 31219, 31220, 31225, 31226, 31230, 31232, 31234, 31235, 31236, 31241, 31243, 31247, 31248, 31252, 31257, 31260, 31261, 31271, 31272, 31274, 31282, 31283, 31285, 31288, 31289, 31290, 31291, 31292, 31293, 31294, 31297, 31299, 31403, 31404, 31406, 31410 to WO

Some WOA wagons were also converted to bulk superphosphate traffic and initially reclassified as WOAS. This was realised to be an incorrect use of the 4 letter coding system and they had been changed to WOS by 1990. They reverted to class WOA in 1994.

1988 WOA 31305, 31309, 31320, 31338 to WOAS

1989

WOA 31308, 31310, 31322, 31324, 31326, 31334, 31335 to WOAS

WOA 31315, 31331, 31339 to WOS

WOAS 31305, 31309, 31326, 31335, 31338, to WOS

1990 WOAS 31308, 31310, 31315, 31320, 31322, 31324, 31334 to WOS
1994 31305, 31308, 31309, 31310, 31315, 31320, 31322, 31324, 31326, 31331, 31334, 31335, 31338, 31339 converted back to WOA

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