Is pretty much a waste of time making comparisons between drownings off cruising size monos and multis because statistically it is a very low risk.
Here in NZ less than 1% of all recreational drownings are off keelboats or similarly sized multis (less than 1 drowning per year on average) - I suspect that given the high percentage of participants in boating
here that figure is higher than in many countries. Here, between 5 and 15 times (varies a lot from year to year) as many drown in road vehicles
as do in those boat types.
The number drowned off these vessels is not divided here into those off multis and those off monos because, I suspect, there are so few drowned off either. I also suspect no one sees the need to make such a division because we do not see the silly arguments here over which is best - we tend to just like boats
. But I can say that most drownings are off monos here but that only because there are so few multis for anyone to manage to drown themselves off.
Also, the majority of drownings off sailing monos and multis here are off race
boats (in fact almost all I can recall
in recent years) so the frequency of drownings off cruising boats is far less than the less than 1% I mentioned above - so a very small risk indeed.
Interestingly, a drowning here off a decked power boat(so longer than 6-7m or so) is extremely rare, so if you want to feel safe from drowning get a power boat
The vast majority of drownings here from boats are from dinghies and non decked boats (so mainly under 6 metres or so) and that is similar to other countries with a high take up of boating
(and accounts for the likes of Ireland
and Australian states, for example, making life jacket wearing mandatory only on vessels under 7 meters). Why are undecked boats implicated? - because the majority of losses are through swampings.
There are actually slightly fewer drownings here from all recreational sports (which includes things like swimming, duck shooting, crossing streams, etc as well as boating) than there are from all non recreational water
based sport causes (eg commercial fishing
accidents, falling in while going for a walk, suicide, etc).
sailing, in the statistics here there are only drownings averaging about 1 or so every 5 years or so - EPIRB
rescues are almost always made off the boat, so end up being evacuations rather than ex life raft or water
rescues. For offshore, the last losses I am aware of off a sailing vessel offshore having departed NZ were from a trimaran
that was lost
north of NZ. But I hasten to say that was not a blemish against multihulls, the trimaran
was a disaster waiting to happen and if NZ flagged I suspect it would not have been cleared for departure.
And, for the professional doubters - yes, I do have the statistics.