D1924 (47810) Crewe Diesel Depot passes Charlton-on-Otmoor on 16 July 2026 with the Steam Dreams 1Z73 18:13 Paddington to Princes Risborough 'Sunset Steam Express' railtour. D1645 (47830) is bringing up the rear. This was supposed to have been hauled by BR 8P 4-6-2 71000 Duke of Gloucester, but Network Rail had imposed a steam ban, due to the extreme heat. The tour should therefore really have been renamed 'Sunset Diesel Express'!