and watch mast fall down - remember it is an unsupported mast (no diamonds) and so (from info gained from the UK fleet) you have to be VERY carefull in anything over about a F3 !
Or if the mast does not fall down, you swim - the D18 has very fine / deep section up front and the rudders are not great - I would not fancy the chances of bearing off in time with a big gust
Not a good plan IMO