I have an old copy of the book and visited the wreck of an Irish Air Corps Seafire which is an easy sunday afternoon walk in the Wicklow hills just outside Dublin. It was fascinating but rather sombre. The pilot was killed but the wreck wasn't found for several days although ironically it was actually on military property just above a firing range. Indeed it was only a few feet away from a W^D marker stone dated 1913 and less than 50 ft from the peak. Just a few feet higher and he'd have made it home safely
It's difficult to explain the fascination for visiting wrecks like that. The atmosphere is quite eerie and the location is always lonely. It tends to put things in perspective.
But it's also great exercise and that can't be bad.