You can’t talk about tilting trains with mentioning the ill-fated British Rail Advanced Passenger Train that started in the 1960’s. The article gives it a short

You can’t talk about tilting trains with mentioning the ill-fated British Rail Advanced Passenger Train that started in the 1960’s. The article gives it a short mention. “Iwnicki thinks the biggest problem with the APT, devised in an atmosphere of "blue-skies thinking", was that it included too many innovations at one time. The casing, bogies, tilting and other features were all new - setting itself an impossibly high benchmark for success. But these have since become commonplace around the world, he adds.” https://www.bbc.com/news/magazine-35061511 https://www.bbc.com/news/magazine-35061511 https://www.crewehc.co.uk/apt https://www.crewehc.co.uk/apt