Hi Observer,
I had heard about Triangular UFO and ships event, and the comment the Pentagon is I suspect them doing their usual deny everything. I found this link
http://robocat.users.btopenworld.com/tr3b.htm
Have a look , certainly looks like the same light pattern. So it looks like a TR3b and not a TR3a. Trouble is some of these links could contain all sorts of rubbish. However the sighting in Stratford sounds genuine as it is in a National Newspaper, but obviously we dont have access to their source to confirm witness details or view any other photos taken at the time.
I have emailed the Daily Mail under the link suggesting it might be a TR3B US spy plane, see if they pick it up and run with it!
Would be interesting to run it past Nick Cooke or Bill Sweetman, but I have never met either or had any contact with them. I have seen them on the TV