Thanks RD. It was the fact that the tail looked the wrong shape and most importantly had a big "nick" out of it that stopped me from saying Aero 45. The "give away" rounded nose of the Aero 45 series is obviously well hidden otherwise I would have said it immediately. I've been looking at Aero 45's, Super 45's, 145's etc all morning, just to see if there was one with that tail but couldn't find it. But it does serve to remind me, "go with your gut instinct"
Nothing prepared but give me a short while and I'll come up with something.