Hinder & Stop bods will stop Tornado
There is no way the H&S people would allow Tornado ( or any Pressurised Water device) from attempting to break the Mallard record. They just wish that anything but the Infernal Combustion Engine would disappear into history. Tornado (and the other new build Steam Engines) just plainly takes them outside their comfot zone. When they get here, they are more likey to 'BAN' them outright and learn how to manage the risk properly.
Unless they take it to France where they don't care all that much about H&S