Post 1038 and Ark Royal
swordfish41,
Thanks for your response. I had seen the BBC documentary on finding the Ark Royal, and knowing that multibeam sonar had been used in the search, did a Google search and came up with the original. As the deck/hangar lift wasn't identified, I did a little research and found its dimensions, which then compared well with the dimensions I found for the Swordfish MKII.
Search techniques have probably changed a little over the years, and even though the physical constraints are the same, the technology developed to overcome the problems has advanced.
Your swordfish41 handle is appropriate!
mm43