HSS 340 Class 20 (Sound) 08 September 2020 12:34 Updated HSS 340 Class 20 (Sound) R2780XS hss_340_class_60_sound_loco_1.pdf 300 KB Download Related articles HSS 335 Class 20 HSS 341 Class 87 HSS 339 Princes Coronation Class R8249 Locomotive Decoder Manual HSS 369E Class 66