(Above) Class 40 locomotive No D306, which is based on the NVR at Orton Mere station. Courtesy NVR
Rail fans across the UK will be heading to the Nene Valley Railway Museum in Cambridgeshire this week (March 6 and 7) for the annual Diesel Gala celebration.
The steam soiree entices enthusiasts from across the UK, offering the precious opportunity to travel behind some rare freight diesels.
The neatly-named visiting locomotives are a Class 46 No 46045, Class 20 No 20048, Class 31 No 31128 and a Class 66/7 from GB Railfreight.
Museum General Manager Cris Rees said officials were expecting "hundreds" of visitors to test out the "venerable" ancient vehiles. "We are expecting hundreds of rail fans who will be travelling long distances to clock up mileage behind these venerable machines.
"It's a strange sign of the times that there are now more diesel enthusiasts than steam," he reflected.
"The general public prefer steam trains and we will also continue to run these."
A special timetable will be in operation for the Diesel Gala. Call 01780 784444 or visit the NVR website.