GERS Network Rail Autoballasters were converted from Tiphook KPA originally built by Fauvet Girel c1988 (see http://paulbartlett.zenfolio.com/ferrytiphookaggregate ).
An auto ballaster is a set of purpose built hopper wagons that accurately lay and distribute ballast onto a track formation. Each wagon has four hopper sections into which new, recycled or cleaned ballast is loaded from the top. Each hopper has controlled discharge doors with additional chutes to direct and regulate the flow of the ballast as it is unloaded onto the track.
New build wagons of similar design followed in 2000 & 1
HQAD 380501 - 10; HQAE 380601 - 30; HQAF 380401 - 10; HQAG ex HQAA 380001 - 38; HQAH ex HQAC 380101 - 214; HQAJ exHQAB 380301 - 38
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