Hi Genghis,
Here's a link to a picture of the HM293 taken in 1973. I think I may well have seen you make that flight, at a flying flee fly in (say that after a few beers) at Popham 2 or 3 years ago (I was in a Balerit)
http://www.qccuk.com/pfa/G-AXPG.htm
All the best