RE: 33rd America's cup - Multi dual cat or tri ???
i think you need to read up some more and learn some more about sailing. what you call ground loop is called a cartwheel in sailing. also the acc boats of last also had a ****load of sensors onboard, i know cause i worked with a guy who has being involved in the construction & maintenance of a fair few of them.
the reason for the debacle in the latest ac was because ernie b is a lying cheating asswipe and wanted the cup for himself, bmwo was the only challenger who had the money and balls to stand up to him and call him on his bs.
the next edition looks to be set in San Francisco in hopefully 60ft multi's. it will be better than any other ac that has been televised in the last 10 years. and also because if it is set in SF they will be able to set it near the shore so lots of opportunity for decent spectator view points.