In the course of researching for my Rotodyne book I have been in touch with Ron's wife Barbera hoping to inspect his logbooks.
Ron loaned them to Derek Wood (Project Cancelled), who has since died.
Derek's extensive library was bequeathed to the Royal Aeronautical Society, but the logbooks do not appear to have been amongst the items passed over. They have dissappeared without trace!
If anyone has any idea of the whearabouts of what would be an invauable reference, please contact me.
Barbera would like to recover them and has agreed to allow them to be copied.