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I managed to find the information that was printed in the Daily Mail about the mast at Ganges.
There was not actually much information about boys falling from the mast.
There was apparently a myth that a PTI had overbalanced and fallen through the Post Office roof. But this would have been some feat as the Post Office was 25 yards from the mast.
There was an eye witness account of a boy who fell straight through the gap in the safety net and hit his head on the metal bars at the bottom of the shrouds. But he was seen some years later - alive and well.
One thing that interested me was that there were similar masts at other training establishments such as St Vincent, Bruce and Wildfire - but Ganges remains the one surrounded by a particular aura.
BBC TV filmed the mast manning several times, including a 1968 Blue Peter episode.
Here are a couple of interesting bits of film from the Pathe News archive.
The first is from 1930 and shows the HMS Ganges ship just before she was broken up. You have to smile at the superstructure that they have built on the upper deck. It detracts somewhat from her "classic good looks"!!
http://www.britishpathe.com/record.php?id=22004
This second film has some nice shots of the mast manning - plus the classic commentary of (I think) Bob Danvers-Walker.
http://www.britishpathe.com/record.php?id=43386
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