Hi,
This is provoking quite a lot of discussion as it seems it is not from Sunderland V PP118, as originally thought.
There is a discussion (
See Flying Boat forum here) in which I've put some pics to show it is likely to be from the early (MkII or MkIII) Sunderland - it matches the de Havilland type props from a Bristol Pegasus engine.
The MkV used the Pratt and Whitney radial and a different propeller.
All very curious.
Can you give the IDs of the other four or so prospects known to have sunk off Calshot please? With IDs it is quick to look up which are MkIII and which are MkV. Ta.
AllanK