7F-026-002 O Gauge HIA Ftlnr Green Hvy Haul Limestone Hopper 369022The HIA limestone hopper was designed for the haulage of limestone, stone and sand and was introduced in 2005 for exclusive operation by Freightliner Heavy Haul Limited. 122 HIA limestone hoppers were manufactured by Wagony Swidinica in Poland. The HIA limestone hopper was 14 metres long with a maximum carrying capacity of 90 tonnes. The wagons worked all over England, typically transporting limestone from Derbyshire (Dowlow) to Yorkshire, Kent,