On the recently wired MML at Irchester just south of
Wellingborough the ROG/DATS overhead line inspection train makes its way along the up fast line. This test train is composed of an eclectic mix of stock with 47813 'Jack Frost' leading former GA DVT 82136. Beyond the following four former GA Mk.IIIs 90035 can be seen. This was the first run of four made up and down the fast lines undertaking various tests as the 3Q65 17.53 Kettering to Bedford.