OO Gauge HornbyR60063 HAA Hopper Wagons, 3 Pack, BR Railfreight – Era 8 Brand new item direct from our new Yorkshire model railway shop. Product InfoBuilt from 1964 to 1977, HAA wagons were built as method tomove coal more efficiently, particularly with the aim of improving to supply ofcoal to power stations. It was intended that trains of these wagons could runin a continuous loop from the colliery to the power station and back, withmachinery I place to allow loading and unloading at slow speeds. In realityit was often the case that the infrastructure to allow this type of running didnot exist, particularly at the collieries, but nonetheless these wagons greatlyimproved coal transfer. With the decline of Britain’s coal industry thesepreviously extremely common wagons have now become extremely rare with mosthaving been either scrapped or rebuilt as another form of wagon. Wagonsincluded in this pack: Railfreight HAA 356106; Railfreight HAA 356107;Railfreight HAA 356108.