Just (belatedly) picked up on the sad news about Ken Boyd. I corresponded briefly with Ken when I was looking for photos of Junglies in NI to help illustrate my FAA Helicopter book back in 2010 and he was extremely generous and supportive.
I think the aviation community, and particularly those who subscribe to this thread, owe him a great deal for managing to capture on film such historical gems as we've been seeing from his archives. I know all too well how it can often be a struggle to persuade people to allow photography on military establishments - purely to record events as they happen, safe in the knowledge that one day they'll probably be the only visual record that survives of a particular event or era - but doing so in such sensitive locations as NI must have taken an altogether different level of persuasion and tenacity. My hat goes off to him. RIP Ken.
Lee