Many thanks for your reply Geoff-I had been thinking of not continuing with this due to lack of interest,but I have printed off your reply and posted it for tomorrows post.
He never mentioned he had been up in one and I presumed it was the same as my design experience of sitting behind a board and never seeing the finished result!
My other line of enquiy is Sigma which was the next project he worked on and I am in contact with the present keeper who last flew it in1999.