51943 & 51568 Firsby 21 August 1992

After travelling for over a mile along dead straight track, 51943 & 51568 slow down for the sharp curve at Firsby on 21 August 1992 with the 17:45 Skegness to Nottingham service. After traversing the nearly 120 degree bend, the unit would then be on dead straight track again, this time for 14 miles across the flat land towards Boston.