Re: "158 of which are Category 1" / severe illness / helmet
"We've got a couple of Canberras at the museum."
ever looked where the nav seat on PR9 Canberra? In the nose. That must have been an interesting ejection.
As for your Canberra - presumably a 3 or 4-seater? I didn't think the rear seat crew on those had ejection seats - wasn't their emergency exit via the landing gear hatch? So an accident on take off or landing was unsurvivable for them