Canberra WT.328 7 May 1956
Hello MB
You say you have seen the BoI (Board of Inquiry), but did you realise that the Accidents Investigation Branch (AIB) were also involved, although they were not formally requested by the RAF. The Canberra type was obviously under investigation by the A.I.B. in 1955/56, according to their Misc Reports Sheet shown to me by the Navigator's son of WT.328.
The RAF Court (Board) stated that aircraft was on a low level task. Also that the wing tip had touched the sea first and although I am not disagreeing with this, it was determined that Canberra WT328 (or "WT.328") had entered the sea at a steep dive angle.
A Distress signal trace was also received around the time of the crash, but more importantly the Canberra was found to be trimmed for level flight very slightly "(0.02 degrees) "nose up" ".