JP. Answer to question1: Yes. Answer to other questions; I don't know who knew what or what actions individuals took or didn't take. I am convinced that the reason this aircraft crashed has yet to be determined because the Accident Investigation conducted by the RAF at the time was woeful. That is why there should be a new, objective and fair investigation into every aspect of this tragedy. The main effect to my mind of the BoI/RO's efforts to date has been to obscure the lack of Airworthiness Regulation enforcement by the MOD. We know that since this crash there have been at least two other such tragedies (though I suspect even more) involving lack of airworthiness, accounting for a further 24 needless deaths. It is just possible if the airworthiness shortcomings of the MOD had been exposed by this BoI, those later deaths might have been avoided. I'm sure that this answer is unacceptable to you, like all my others. Too bad.