With apologies to Boscombe and MoD(PE), when I said it was incumbent upon MoD to resolve the uncertainties I mentioned, I should of course have said “RAF”. It was they who said the aircraft should fly, not the other two. Boscombe were trying to resolve matters. They were awaiting necessary information from MoD(PE).
Walter, if you want to focus on the basic Nav, may I suggest you start with a list of what Navigation equipments you mean. In fact, three distinctly different lists;
1.What MoD say was fitted
2.What we know was fitted
3.What you think was fitted
(They get progressively longer).
Then ask a basic question. Of the equipments listed, which were cleared for use during flight?
None.
Analyse that.