ALBATROSS - your comment about luck alluding to the forced landings in calm sea states is not an accurate reflection of the Puma design's inherent ability to float. Throughout this issue I have come across a couple of good images of Pumas floating quite happily in fairly unpleasant sea states. One in the Norwegian sector and Bristows Tiger after the lightening strike. (I think the Tiger rolled over only after the salvage boat stabbed the floats).
It floats low in the water but it does seem to float well so I do not think your point is valid.
DB