America's Cup Update, Emirates Team New Zealand have used their first 30 days of training on the AC72 Catamaran

From the following Sail-World article

http://www.sail-world.com/Australia/Americas-Cup:-Grant-Dalton-on-hitting-the-big-zero/104638

According to the virtual Official Noticeboard the team has a zero alongside its name in terms of sailing days left. Luna Rossa has 18, Artemis Racing 23 and Oracle Team USA 22days. Many pundits see that as a measure of the current state of play in the 34th America's Cup. In reality it is hard to argue against, but Emirates Team NZ's MD, Grant Dalton seemed to be more focussed on what lay ahead, rather than the margin the team may have on the rest of the field. In fact it never came up.

Looking back on the five months that have elapsed since their first AC72 was launched, and the gains that have been achieved. 'I know that the boat we have now is significantly quicker than the one we launched in July. It is a percentage thing. If you gain one or two percent in an area, it becomes a big number because of the speed we are sailing. If the gains all added up to 10 percent and we are sailing at 40kts downwind, then suddenly it is doing 44kts, in crude terms.

read more here

and a retrospective video of the first 30 days of training on the AC72