Class 31 - 31418 BR Blue - DCC Sound Wagon Type_HMA Hopper ‘frost’ grille (where applicable) &

‘frost’ grille (where applicable) & super fine etched metal roof grille

Notably though

an embellishment never given to 37409

PowerPack stay-alive system and dual speaker configuration to reproduce the characteristic sound and function of a BR Class 50 at work

as it operated from Stratford Shed until being repainted into the GER’s ‘austerity’ grey livery in 1915

Class 31 - 31418 BR Blue - DCC Sound Wagon Type_HMA Hopper ‘frost’ grille (where applicable) &31418 BR Blue Between 1971 and 1975, 24 Class 31s were upgraded with electric train heating capability (ETH) courtesy of a 320kW Brush BL100 30 alternator, the same as fitted to the similarly modified Class 45 1 Peaks and Class 47 4s. Powered directly from the engine, this provided an impressive ETH index rating of 66, perfect for their expected duties shuttling empty coaching stock (ECS) in and out of Kings Cross, Paddington and St. Pancras as well