(22 May 2015, 8:17 pm)DaveyBowyer wrote If the Red Arrows get replaced, 6049 would go to Riverside as a TTX backup due to it having a Tachograph allowing 6084 to permanantly join the TEN.
I think 6001-6007 would go to Crook for service X21, 6049 - 6055 to Riverside, with 6049 going onto Tyne Tees Express and 6050-6055 spares