7A17, usually a good bet for Class 59 haulage, was entrusted to a pair of class 66s on 8 February 2023. 66590 and 66585 dropped down from Savernake Summit with the 10:24 Merehead - Colnbrook stone train, seen here approaching the site of Wolfhall Junction.
PHOTO DATA FOR IMAGE 23-D-0168
camera : Nikon Z6ii
lens : 24-70mm f/2.8
focal length : 58.0 mm
shutter : 1/1000 sec
aperture : f/8.0
ISO : 220 ISO
original : Digital: 24MP NEF
SUBJECT DATA
Loco / Unit : 66.590, 66.585
Train : 7A17, 10:24 Merehead Quarry - Colnbrook stone