Following flight plan and ensuring the plane doesn't crash is already a great deadman switch for a plane mid flight ! This[1] StackExchange thread does give so

Following flight plan and ensuring the plane doesn't crash is already a great deadman switch for a plane mid flight ! This[1] StackExchange thread does give some pointers as to why that may be. [1] https://aviation.stackexchange.com/questions/81234/is-there-a-reason-that-commercial-jets-do-not-have-a-dead-man-s-switch https://aviation.stackexchange.com/questions/81234/is-there-...