43089 Hayabusa leads Network Rail's New Measurement Train through Kemble on 5 June 2008 with the 1Z22 06:48 Derby to Cheltenham (via Hereford and Swindon) test train, with 43014 bringing up the rear. At this point it was running 40 minutes early and consequently was following right behind the 12:31 Cheltenham to Paddington HST. In fact it had a very brief signal check in the station, just enough to result in the sun disappearing! It is pictured just about to enter the single track section to Swindon and also the 409 yards long Kemble Tunnel.