The oldest working Great Western Railway Locomotive will be taking back to the tracks at Didcot Railway Centre. The locomotive will be launched for a three-day event starting on May1. It will kick-off with an official ceremony to be performed by local MP, David Johnston. The veteran locomotive, 1340 “Trojan”, was built by the Avonside Engine Company of Bristol in 1897 and worked at docks around Newport before being acquired by the GWR in 1923. The diminutive locomotive has just four wheels, tips the scales at less than 23 tons and has room for just 630 gallons of water and a half ton of coal.