50049 'Defiance' & 50008 'Thunderer' pass Cholsey working 1Z52 sheerness to Risborough 23/08/25

A video shows the Class 50 diesel locomotives 50049 'Defiance' and 50008 'Thunderer' passing through Cholsey. The train is operating under headcode 1Z52, which is identified as a service from Sheerness to Risborough. The footage captures the movement of these historic locomotives in operation, with no additional context provided regarding the specific route or operational details.

Fishplate has identified 2 locomotives in this video. We’ve also matched 1 headcode and 1 operator . Create a free account to see where they appear, unlock timestamps and locations, and view the full breakdown.