Helmets can help race car drivers in crashes, if you're in a plane crash it's unlikely to help much. Fighter jet pilots wear helmets mainly for breathing at high altitudes (that most GA aircraft are incapable of flying at), as well as for things like an HMD.
Helmets can help race car drivers in crashes, if you're in a plane crash it's unlikely to help much. Fighter jet pilots wear helmets mainly for breathing at high altitudes (that most GA aircraft are incapable of flying at), as well as for things like an HMD.