Nope, your on the button there mate...and whilst I have been stuck in the colonies for almost 4 decades I am led to believe tha TSR2 (which was a magnificant machine) was pretty much the end of Britain's hardcore efforts in the aerospace industry....
Not to take too much away from Canada either with the Avro Arrow, but I think a lot of Brit airframe and engine technology was buried there too...starting to think the Yanks had a lot to do with all of it!