V Twin

Inverted stability is the gnarly downside of upright stability.  But here are solutions short of helium balloons.
You need to reduce the effective beam when the boat is upside down. This is best done with flooding tubes, which will allow the side you are standing on to sink and thus allow the boat to roll.  You also want the one that is going up top drain.  This has been done a number of times in the past, so it isn't hard to find a solution you like.
Just a suggestion from one who has been there and done that.
SHC



Edited by Steve Clark - 26 Apr 12 at 4:05pm

Originally posted by Steve Clark You need to reduce the effective beam when the boat is upside down. This is best done with flooding tubes, which will allow the side you are standing on to sink and thus allow the boat to roll.  You also want the one that is going up top drain.   so it isn't hard to find a solution you like.

There is no solution I would like other than not to go there in the first place. I don't know whether you sail a Garda Class, though most likely a cat, but why can't we accept that turning turtle for multi-sailed dinghies with rigging and clutter is the most dangerous situation so why do so many accept it. Perhaps they don't realise that it was seldom the norm pre the asymmetric bubble and other than for cats has only come about as a result of many dreadful badly designed dinghies. I'm amazed that so many sailors of the flat water Garda Classes accept that a dinghy should turn turtle after say a half minute  for reasons of safety.

Originally posted by johnreekie1980 Dingy sailing is not a hazardous sport. If sailing is a hazardous sport then what is cycling to work. The Department for Transport shows 970 cyclists killed or seriously injured in the third quarter of 2011. I am not sure what the definition of seriously injured is but it is probably not sore hands. I have yet to see a figure for killed or seriously injured per mile sailed against other sports but i would bet that it is low.

I hardly mean hazard as in 'death hazard' (although being upside down in a rough sea is not something I relish) If you prune roses there is a pricking hazard, if you sail there is a getting cold and wet hazard.

Oldarn,
SHC is a well known figure in the industry internationally and has wider experience of design, development, production and competition in more varied types of boats than most of us can dream of. I can think of few people less likely than *him* to have a blinkered viewpoint. When he speaks I pay considerable attention.

Edited by JimC - 27 Apr 12 at 9:38am

Originally posted by rogue   very true, but the risk of capsize in the first place has been greatly reduced.  So for what it's worth, it's a better bit of design and application than some other more recent 'custom' developments

...that you can't even get in to go sailing