Showing posts with label thickens. Show all posts
Showing posts with label thickens. Show all posts

Wednesday, April 27, 2016

Americas Cup Observations

Its clear that the AC/72 boats represent the most significant advances in yacht racing in a generation. While small boats like the Moth have been foiling for years and other large multihulls have been using foils that are adjustable for cant and rake, the 72s are arguably the first to combine foils, wing masts and sophisticated foil control systems in in a truly competitive package. It is also important to note that there were no significant gear failures during the regatta. That is a testament to the highly developed design, engineering and testing programs of both teams. I think this bodes well for the future of the Cup competition. Once again, I have to confess that before the event I was among those who felt that this event could very well be a dismal failure. After witnessing the spectacular racing I changed my mind in this regard.

I watched every minute of the racing on TV and think it was extremely well presented. Journeyman sports announcer Todd Harris did good job in spite of having no real yacht racing experience. Sure, he made a few goofy comments but he also frequently acknowledged his lack of experience in the sport and didnt try to come across as an expert. I thought that was a refreshing departure from previous AC announcers. NBC relied on a cast of true sailing experts to deliver insightful commentary and I thought they all combined to deliver a quality sporting product.

What about the crews? Without access to the inner workings of each team we can only speculate on what occurred within them as the regatta progressed, but the indications are that the American team had not spent nearly as many hours on the water, in the boat they would race in the finals, as the Kiwis did. This became glaringly apparent when a Team Oracle crewman fell overboard before the start of the first race. Another interesting facet of the American team was the body language of two key members of their afterguard, John Kostecki and Tom Slingsby. We dont know what that interpersonal relationship was like but it was obvious that things improved when Kostecki was replaced by Ben Ainsley. This is not to take anything away from Kostecki as he has had  a long and illustrious career as a professional sailor. But sometimes personalities dont mesh regardless of the skills and talents of the individuals and perhaps thats all there was to it. In any case, the shift from Kostecki to Ainsley made a significant difference and in my opinion was a key factor in Oracles eventual victory.

It was compelling personal drama to see the juxtaposition of confidence in the two crews as Oracle began racking up wins against the Kiwis who came within a few puffs of wind of winning the event when race 13 was abandoned with the ENZ ahead with less than a mile to the finish line. When that race was re-sailed later in the day, the Americans began their improbable march to 9 points and the Cup. As the Kiwis suffered loss after loss their confidence was replaced first by concern, then worry and finally desperation. At the end of the event the strain and despair were evident on the faces of the ENZ team, especially that of Dean Barker, whose helmsmanship could not be faulted except on the starting line where he was frequently bested by Spithill. The Kiwis made few tactical errors and only one glaring boathandling error when they nearly capsized.

It was also interesting to see how the Americans continued to improve daily while the Kiwis seemed to remain constant in terms of boatspeed. I can only attribute that to the fact that Oracle was the faster boat and it took several races for the Americans to learn how to sail it to its optimum potential, while the Kiwis had the slower boat and couldnt get much more out of her.

In the aftermath of the event, Team Oracle accepted the challenge from an Australian group for the next Americas Cup competition. We dont know what kind of boats that regatta will be sailed in, but given the spectacular racing we witnessed in AC XXXIV, Im looking forward to some incredible technological advances and exciting racing in the event to come.


Thursday, March 17, 2016

Americas Cup Lessons Learned

Apologies for the long hiatus from this blog. Its been a very busy six weeks since my last post, with several projects completed on Finisterra. But first we need to consider the AC regatta and lessons we can take from the racing and the boats themselves, and what this incredible event might mean for the future of the competition.

The boats:

1. It appears that Team Oracle really did have the better boat. I had thought that the bows might be too fine, lacking sufficient buoyancy to support the wing mast. But the designers and crew were able to keep the boat on its feet throughout the event. The Kiwis chose another route with fuller, more buoyant bows. Perhaps in a bit more swell that would have paid off, but it is clear that the Yanks had the faster boat for the conditions they encountered. This is an indication that Team Oracles designers had a better feel for the expected conditions on the bay and did a better job of targeting their boat for them, while the Kiwis opted for perhaps more of a safety margin in their bows and paid the price with more weight and windage up forward. This would cost them speed especially on the upwind legs.

2. Deck layouts for both boats showed significant differences. The most striking of which were the airfoils mounted on the aft cross beam of ENZ. There was a price to pay for them in terms of weight and drag and I think its doubtful that they did enough to smooth out the wind vortices swirling off the boat to offset the negative factors. The Kiwis seemed to have a more efficient winch layout, but I noticed in the later races there were times when grinders werent in the cockpit but grinding from a position on the trampoline instead. This was an indication to me that the crew was getting a bit rattled as they racked up loss after loss.

3. Much has been said about the fact that the tactician aboard Oracle had to grind winches on each tack or jibe while his counterpart on ENZ was able to keep his head out of the boat more and focus exclusively on tactics and strategy. This was more than offset by the addition of a strategist aboard Oracle. The early races showed that communication between tactician, strategist and helmsman would be crucial and it looked like ENZ had the better operational arrangement. However, once Ben Ainsley replaced John Kostecki those lines of communication improved drastically and it was beautiful to see how well Oracles afterguard worked together, and this was a key factor in Oracles string of victories.

4. There were other design features in the boats that probably made a difference. For example the helms on Oracle were angled inward a few degrees. This probably resulted in better ergonomics for the helmsman than the directly forward facing helms aboard ENZ.

5. As far as I could tell, the daggerboards were roughly the same but of course I dont know what the actual foil sections were. Another area of vital importance is the board control systems. We dont really know what the differences were and which worked best at raising and lowering them. Nor do we know which system worked best for adjusting cant and rake of the boards. Of course we can infer that Oracles worked better since they won but it would be fascinating to see side-by-side comparisons of these systems.

Ill write more about the actual racing in a later post.

Wednesday, March 16, 2016

Americas Cup The Plot Thickens

Just when we thought the Kiwis owned this regatta, the Yanks stepped up. As I mentioned previously, team Oracle is still on the steep part of the learning curve. They apparently took a giant stride forward over the last few days and the race results show it. Of course they still have a very steep hill to climb if they want to keep the Cup, but they are definitely improving their boatspeed, tactics and boat handling.

In race 8 team Oracle showed improved upwind boatspeed, but more important than that, they tacked much more efficiently than before. In previous races Oracle lost out to the Kiwis on nearly every tack but this time they held onto them on leg three. Near the top of that leg ETNZ, on port tack could not cross the starboard tack Oracle and attempted to tack under them, nearly capsizing in  the process. This rare boathandling mistake cost them the race and came near taking them out of the regatta altogether. No one knows if they would have won this race if not for the blown tack but the key point of this race is that Oracle managed to up their game and breathe some life into their chances.

With the next race canceled due to high winds, both teams retired to their respective corners, one to review what went wrong, the other to continue their climb up the learning curve. When race 9 got underway the next day, the Yanks showed that 8 was not a fluke. They won the start and led ETNZ at every mark.

Race 10 was a spectacular display of yacht racing. The American boat won the start but couldnt quite slam the door on the Kiwis at mark one and trailed on the run. It was on the next beat that we were treated to a tacking duel that no one prior to the event would have predicted. It was an awesome spectacle of high speed sailing, split second timing and superb boathandling. Rounding opposite marks at the windward gate the two boats split to opposite sides of the course and jibed back toward each other with ETNZ on starboard. This was a situation that has never happened before, two boats hurtling down the course at 40 knots, approaching each other on a collision course. Oracle opted to slow down and take the stern of the Kiwi boat. At this speed, the result was a 200 meter advantage for ETNZ and that was all they needed to take the race. Was the slowdown the right choice? I think that, given the situation, it was probably a better option than gybing on top of the Kiwis and getting pinned outside at the leeward mark. The question is how far ahead does the tactician have to think in order to make this the right decision. At 40 knots, the Kiwis were a long way off thirty seconds before the cross, but thats about when the decision to take their stern needed to be executed. This is sailing on a whole new level, the ultimate high speed chess game where the stakes include putting the lives of the crew on the line. Intense!




 

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