47972 The Royal Army Ordnance Corps passes Shrivenham on 1 November 1994 with the 1Z05 08:20 Worcester Shrub Hill to Cardiff track testing special, including the High Speed Track Recording Coach DB999550. 47972 was painted into this distinctive Central Services livery prior to its naming at MoD Kineton in 1993. As a departmental locomotive (at this time allocated to Crewe depot in pool CDJC) its job was to work test trains over the national network from the Derby Railway Technical Centre.