A sound modification that changes the horn on Will Braddock's fantastic D6535 reskin to the Armstrong Powerhouse Class 57 in order to recreate the unusual class 47/57 style horns it has in real life. It is believed by many enthusiasts that D6535's horn has been changed to either a class 47 or 57 due to its original class 33 horns breaking sometime between the late 90s
and early 2000s which will explain why the locomotive has rather unique sounding horns to any other preserved class 33.
- British Locomotive Studios Great Central Railway Locomotive Pack
- Armstrong Powerhouse Class 57 Soundpack (Pro)