Another brilliant day in Peterborough . 66205 TNT 66066 turned up with the RHTT at 15.44 . Both locos were unbelievably filthy . After another outing , they returned at 18.38 . Torrential rain for about 20 minutes had given them a good clean ! 37510 TNT 37218 went north at 18.12 , making a lot of noise , with what looked like 4 barrier vehicles .