Arkroyal
Nice to hear from you again.
The problem with the evidence of Mr Holbrook is that to the BOI he gave evidence on oath that, when some 2 NM SW of the lighthouse he had seen the Chinook fly past his yacht, the weather was as follows: "The visibility was about one mile and limited by haze."
Some 19 months later he told the Fatal Accident Inquiry on oath " I recall the conditions of visibility at sea level as being fine, perhaps as much as five miles. I think at that point I could even see the Antrim coast so it might have been as much as six or seven miles."
The only way I can think of explaining the disparity between those 2 statements is that he forgot to inform the BOI that he was using Swedish miles (10km = 1 Swedish Mile) for his distance assessment and he used English miles for the FAI. He also did not mention to the BOI his cabin boy or the fishing vessels that he was manoeuvring around at that time (according to his evidence to the FAI).
We have no way of knowing which of his evidence, if any, is correct.
Best wishes