Very nice, was that taken during or just after the Airshow 9.8.75? Would it be possible to use the image? and more importantly do you have anymore by chance. I'll look into the Sea Vixen as it possibly sounds like a stationary firing, there are photos on the web showing a Lightning ventral tank with a firestreak being fired into the Bay, they were looking at the effects on the tailplane etc. Nowadays the thought of just firing a captive missile out to sea from there would be a big no no but in those days things were different. There are documents in the National Archives showing a proposal to turn Newborough Beach in the SE of the Island by Llanddwyn into an air-ground firing range in 1955! Many thanks for your reply, Taff