Test Trains - aroyle

Having worked during the early hours of Sunday on the Thameslink route through central London, a combined formation of test trains (including Track Recording Coach, Plain Line Pattern Recognition Coach 3 and Ultrasonic Test Unit 1) returns to the RTC as 3Z56 12.30 Cricklewood to Derby. 37608 is shown working hard on the climb to Sharnbrook Summit at Souldrop but motive power for the actual night shift was provided by 73136 and 73138. 31/1/16