HSS 340 Class 60 (Sound) 18 June 2025 15:10 Updated HSS 340 Class 60 (Sound) R2780XS hss_340_class_60_sound_loco_1.pdf 300 KB Download Related articles HSS 335 Class 20 HSS 339 Princes Coronation Class HSS 341 Class 87 HSS 338B Class 56 (Sound) HSS 328E Class 9F