The "surrounding bits" would include the South Essex coast, including Southend on Sea, and a sizeable chunk of the north Kent coast! She's regularly inspected by the Royal Navy, and has a monitored exclusion zone covered by CCTV!
Just the sort of thing the Russians might take a pop at!😳
The image of the ARCs MkV instrument panel appears to show a modern dial where the clock should be. If you look carefully, it appears to have an LCD display.
A pal of mine has sent me these images of an Armstrong Whitworth propellor boss!
Any ideas on the “ what, where, when” of this substantial piece of timber would be greatly appreciated!