Its very first day in service and looking good - could they really replace the Halls?Mark Alden adds the details Although the head code shows 1H31 I believe the train is actually 2H31 10.54 Swindon - Cheltenham Spa St. James which the loco would work to Gloucester Central and return on 2B79 at 14.40 from Gloucester. This working was used regularly by Swindon to trial brand new locomotives. 1H31 was the 14.11 Exeter - Birmingham Snow Hill relief which ran 'as required' (a 'Q' train).