Kate short for Bob 243 #10401 Posted November 27, 2020 1 minute ago, Forourselves said: the one about the design teams saying the AC75 has major design flaws. Well they do have a flaw. At 20 minutes the races will be far too short. 2.2 nautical miles in 3 minutes...... Share this post Link to post Share on other sites
167149 98 #10402 Posted November 27, 2020 14 minutes ago, Kate short for Bob said: Well they do have a flaw. At 20 minutes the races will be far too short. 2.2 nautical miles in 3 minutes...... we've sent laser 4.7's on longer courses..... little barrier should be a wing mark 1 Share this post Link to post Share on other sites
Kate short for Bob 243 #10403 Posted November 27, 2020 13 minutes ago, 167149 said: we've sent laser 4.7's on longer courses..... little barrier should be a wing mark Yeah. Down at the Yacht Club at the moment and we suggested a hen and chicken mark little barrier great barrier colville waiheke home course. Still pick NZ to win but one hell of a course! 2 Share this post Link to post Share on other sites
phill_nz 638 #10404 Posted November 27, 2020 day race ... Bay of islands .. and back 1 Share this post Link to post Share on other sites
enigmatically2 563 #10405 Posted November 27, 2020 On 11/17/2020 at 7:10 PM, Indio said: At least Argentina have now busted their duck against the mighty All Blacks. Will Argentina make it 2 for 2 this weekend? How are the confidence levels down there for avoiding 3 losses in a row? Share this post Link to post Share on other sites
winchfodder 175 #10406 Posted November 27, 2020 8 hours ago, Priscilla said: Nothing sticky here... Amazing way the it picks up power and speed. Notice the way the heel to windward comes on when the leeward foil starts to generate lift. Looking at the ETNZ underbody compared with Ineos it seems that in addition to the end plate affect and lower wetted surface as the boat starts to lift on the bustle, the concave cathedral hull shape on ETNZ would be creating an aircushion effect almost like a hovercraft. The stepped hull of INEOS might reduce wetted surface, but does not create an air cushion. Roll on December 16th 1 Share this post Link to post Share on other sites
167149 98 #10407 Posted November 27, 2020 2 hours ago, enigmatically2 said: Will Argentina make it 2 for 2 this weekend? How are the confidence levels down there for avoiding 3 losses in a row? wont mind either way, if it's to be 3 in a row it could well be a blessing in disquise Share this post Link to post Share on other sites
enigmatically2 563 #10408 Posted November 27, 2020 1 minute ago, 167149 said: wont mind either way, if it's to be 3 in a row it could well be a blessing in disquise You think if they do that's the end of Robertson? Can they afford to buy out his contract? Share this post Link to post Share on other sites
167149 98 #10409 Posted November 27, 2020 1 minute ago, enigmatically2 said: You think if they do that's the end of Robertson? Can they afford to buy out his contract? think you're a tad off there, razor is waiting in the shadows still, it's the other bloke running things right now.... Ian Foster Share this post Link to post Share on other sites
enigmatically2 563 #10410 Posted November 27, 2020 10 minutes ago, 167149 said: think you're a tad off there, razor is waiting in the shadows still, it's the other bloke running things right now.... Ian Foster You are of course correct, what I meant to say was You think if they do that's the end of Foster? Can they afford to buy out his contract so they can bring Robertson in? Share this post Link to post Share on other sites
Sailbydate 2,436 #10411 Posted November 27, 2020 14 hours ago, Priscilla said: Crikey going to be a cracker Xmas AC Vendee Jules Verne it's all on. Yep. And don't forget that World Famous in Australia, Sydney 2 Hobart on Boxing Day. I think it's still on.... ;-) 3 Share this post Link to post Share on other sites
Priscilla 2,117 #10412 Posted November 27, 2020 9 minutes ago, Sailbydate said: Yep. And don't forget that World Famous in Australia, Sydney 2 Hobart on Boxing Day. I think it's still on.... ;-) Wee bit remiss on my behalf Sail my humble apologies but in my defence I was foiling off from reality. 1 Share this post Link to post Share on other sites
zillafreak 77 #10413 Posted November 27, 2020 3 hours ago, winchfodder said: Amazing way the it picks up power and speed. Notice the way the heel to windward comes on when the leeward foil starts to generate lift. Looking at the ETNZ underbody compared with Ineos it seems that in addition to the end plate affect and lower wetted surface as the boat starts to lift on the bustle, the concave cathedral hull shape on ETNZ would be creating an aircushion effect almost like a hovercraft. The stepped hull of INEOS might reduce wetted surface, but does not create an air cushion. Roll on December 16th +1 my thoughts as well Share this post Link to post Share on other sites
kiwi39 44 #10414 Posted November 27, 2020 4 hours ago, winchfodder said: Looking at the ETNZ underbody compared with Ineos it seems that in addition to the end plate affect and lower wetted surface as the boat starts to lift on the bustle, the concave cathedral hull shape on ETNZ would be creating an aircushion effect almost like a hovercraft The whole hull is shaped to be a wing in ground effect aerofoil - with the “concave cathedral” (great description) hull shape channeling air underneath the hull. the more lift the hull can generate, the less the foils have to - reducing drag Share this post Link to post Share on other sites
weta27 4,031 #10415 Posted November 27, 2020 12 hours ago, Wandering Geo said: From Weta Photo below. It is in the water at times. Has to be max sticky when it is. The boat was stopped. Even then, you can see that the stern underside is not flat - see the side - it's gently curved. Once under power, most of the stern is out of the water. Not sticky. Share this post Link to post Share on other sites
Salty Seacock 326 #10416 Posted November 27, 2020 6 minutes ago, weta27 said: The boat was stopped. Even then, you can see that the stern underside is not flat - see the side - it's gently curved. Once under power, most of the stern is out of the water. Not sticky. They roll slightly windward or leeward as they transition. At that stage, the stern is as dry as a monk's manuscript. 1 Share this post Link to post Share on other sites
Indio 803 #10417 Posted November 27, 2020 8 hours ago, enigmatically2 said: Will Argentina make it 2 for 2 this weekend? How are the confidence levels down there for avoiding 3 losses in a row? Since we got kicked out of RWC-JPN, in a way I hope we lose to the Pumas to drive another nail in Foster's coffin! But alas it won't happen - there will be some fireworks in the first 10 minutes tonight. We don't do losing very well... Share this post Link to post Share on other sites
Indio 803 #10418 Posted November 27, 2020 5 hours ago, enigmatically2 said: You are of course correct, what I meant to say was You think if they do that's the end of Foster? Can they afford to buy out his contract so they can bring Robertson in? Foster would have performance milestones in his contract which would define whether there needs to be any "buying out". In fact, I rather fancy a three-strikes-and-fuck-off clause but we're far too nice for that. They'll just announce he's leaving to pursue other "challenges" which means the Poms will hire him next Share this post Link to post Share on other sites
hoom 517 #10419 Posted November 27, 2020 On 11/27/2020 at 10:05 AM, Forourselves said: When the courses were announced, they were all available, hence the announcement. Only after the announcement, In January, the Port and harbourmaster wrote to the teams adding restrictions. What clause of the agreement did the harbourmaster invoke? What kind of shit-ass agreement to use a shipping channel for a major international sporting event lets the harbourmaster come back 2 years later & just say 'you can't use the course' like that? Share this post Link to post Share on other sites
Nutta 226 #10420 Posted November 27, 2020 5 minutes ago, hoom said: What clause of the agreement did the harbourmaster invoke? What kind of shit-ass agreement to use a shipping channel for a major international sporting event lets the harbourmaster come back 2 years later & just say 'you can't use the course' like that? NZ government, local government, and bureaucracy are a fucking clown show. And that's an insult to clowns. There's still a reasonable chance the shipping lanes will get shut down and replaced by a cycleway before March. 1 Share this post Link to post Share on other sites
167149 98 #10421 Posted November 27, 2020 32 minutes ago, Nutta said: NZ government, local government, and bureaucracy are a fucking clown show. And that's an insult to clowns. There's still a reasonable chance the shipping lanes will get shut down and replaced by a cycleway before March. yes but they HAVE to be a fucking clown show to land so much of their "teamsports" horse shit on such a small population, Share this post Link to post Share on other sites
I ride bikes 94 #10422 Posted November 28, 2020 B2 mods Share this post Link to post Share on other sites
Stingray~ 1,270 #10423 Posted November 28, 2020 3 minutes ago, I ride bikes said: B2 mods Link please? Interesting Share this post Link to post Share on other sites
I ride bikes 94 #10424 Posted November 28, 2020 17 minutes ago, Stingray~ said: Link please? Interesting https://en.m.wikipedia.org/wiki/Littoral_combat_ship 1 Share this post Link to post Share on other sites
bigrpowr 182 #10425 Posted November 28, 2020 B2 looks fucking fast. it's gonna be tough for whatever challenger has to face them. 1 Share this post Link to post Share on other sites
Kiwing 290 #10426 Posted November 28, 2020 B2 be hard to sandbag back to the others !!?? Share this post Link to post Share on other sites
Sidecar 798 #10427 Posted November 28, 2020 1 hour ago, I ride bikes said: 2 hours ago, Stingray~ said: Link please? Interesting https://en.m.wikipedia.org/wiki/Littoral_combat_ship Not exactly the same vessel, but these (Kiwi) guys do a lot of narrow hulls with training wheels: http://www.lomocean.com/projects/defence/63m+-+navy+trimaran Share this post Link to post Share on other sites
Ex-yachtie 1,495 #10428 Posted November 28, 2020 10 minutes ago, Kiwing said: B2 be hard to sandbag back to the others !!?? One option is to simply be so fast that they can’t compare themselves against you any time after the first half of the first beat, and spend the next two months trying to guess. All the while you stick your good foils on the boat and go faster again. 1 Share this post Link to post Share on other sites
barfy 1,060 #10429 Posted November 28, 2020 11 hours ago, winchfodder said: e, the concave cathedral hull shape on ETNZ would be creating an aircushion effect almost like a hovercraft Maybe not concave : 11.6 At any transverse cross-section through the hull lower surface: (a) no horizontal line shall cut the cross-section more than twice; and 1 Share this post Link to post Share on other sites
breezie 65 #10430 Posted November 28, 2020 11 minutes ago, barfy said: Maybe not concave : 11.6 At any transverse cross-section through the hull lower surface: (a) no horizontal line shall cut the cross-section more than twice; and NO not that simple the hull can be concave and is (i think) just not in relation to a horizontal line when the hull is sitting flat! .... If you think on it for a moment any sort of keel will make the bottom a concave surface at some angle. what the rule prevents is any sort of cathedral (or catamaran) shape 2 Share this post Link to post Share on other sites
MaxHugen 488 #10431 Posted November 28, 2020 17 minutes ago, breezie said: NO not that simple the hull can be concave and is (i think) just not in relation to a horizontal line when the hull is sitting flat! .... If you think on it for a moment any sort of keel will make the bottom a concave surface at some angle. what the rule prevents is any sort of cathedral (or catamaran) shape Exacta-montly! Share this post Link to post Share on other sites
Sea Breeze 74 515 #10433 Posted November 28, 2020 4 minutes ago, weta27 said: Is that a little Townson in the background? Enough breeze for a reef. 1 Share this post Link to post Share on other sites
Ĺudicrous 3 #10434 Posted November 28, 2020 Party Piedy. 22 foot Townson, almost the same hull shape as a Starling. 2 Share this post Link to post Share on other sites
Varan 1,727 #10435 Posted November 28, 2020 12 minutes ago, weta27 said: ... She sure is pretty. Share this post Link to post Share on other sites
Sailbydate 2,436 #10436 Posted November 28, 2020 17 minutes ago, Varan said: She sure is pretty. Still can't get my head around that muffin top foredeck. 2 Share this post Link to post Share on other sites
Wandering Geo 45 #10437 Posted November 28, 2020 8 hours ago, weta27 said: The boat was stopped. Even then, you can see that the stern underside is not flat - see the side - it's gently curved. Once under power, most of the stern is out of the water. Not sticky. Weta27 (thanks for all the photos by the way), I ain't convinced, to much turbulent wake to be stopped. If there is ever a displacement race or period of race (ie not enough wind to foil) I think this boat will struggle . Share this post Link to post Share on other sites
SCARECROW 554 #10438 Posted November 28, 2020 4 hours ago, Stingray~ said: Link please? Interesting 4 hours ago, I ride bikes said: B2 mods Nice bit of Australian design that, you'd never guess the platform started out as a pocket cruise boat. 1 Share this post Link to post Share on other sites
Sailbydate 2,436 #10439 Posted November 28, 2020 ^Looks like, Lord Darth Vader's helmet 2 Share this post Link to post Share on other sites
fish7yu 425 #10440 Posted November 28, 2020 35 minutes ago, Sailbydate said: Still can't get my head around that muffin top foredeck. B2 to me, has an American Muscle Car feel...... Share this post Link to post Share on other sites
uflux 587 #10441 Posted November 28, 2020 Have anyone had actual eyes on the sailing the last couple of days?? Not the usual info sifting through. I would be good to get more of a gauge on how ETNZ is going. Share this post Link to post Share on other sites
Wandering Geo 45 #10442 Posted November 28, 2020 21 minutes ago, fish7yu said: B2 to me, has an American Muscle Car feel...... 3 Share this post Link to post Share on other sites
Lat35sowth 65 #10443 Posted November 28, 2020 1 hour ago, Sailbydate said: Still can't get my head around that muffin top foredeck. Similar nose to F1 cars Share this post Link to post Share on other sites
Sailbydate 2,436 #10444 Posted November 28, 2020 1 hour ago, fish7yu said: B2 to me, has an American Muscle Car feel...... Yeah. I think I can see the DNA, fish. ;-) 2020 Dodge Challenger SRT Hellcat Redeye Share this post Link to post Share on other sites
Sailbydate 2,436 #10445 Posted November 28, 2020 1 hour ago, uflux said: Have anyone had actual eyes on the sailing the last couple of days?? Not the usual info sifting through. I would be good to get more of a gauge on how ETNZ is going. She looks bitchin' and a little less ugly than when she first splashed. :-) Weta27 has had eyes on her. What's the form, mate? 1 Share this post Link to post Share on other sites
Boybland 520 #10446 Posted November 28, 2020 2 hours ago, Varan said: She sure is pretty. The AC75 ain't bad either! 1 Share this post Link to post Share on other sites
weta27 4,031 #10447 Posted November 28, 2020 2 minutes ago, Sailbydate said: Weta27 has had eyes on her. What's the form, mate? Haven't seen much sailing the last two days, except for (yesterday) LR and ETNZ flying out to training way down the back somewhere. They are training out of range of my lens and often towing back in, or coming home early (in which case I've missed them). Pretty low strike rate at the moment - need to up my game. 2 Share this post Link to post Share on other sites
Sailbydate 2,436 #10448 Posted November 28, 2020 11 minutes ago, weta27 said: Haven't seen much sailing the last two days, except for (yesterday) LR and ETNZ flying out to training way down the back somewhere. They are training out of range of my lens and often towing back in, or coming home early (in which case I've missed them). Pretty low strike rate at the moment - need to up my game. Share this post Link to post Share on other sites
167149 98 #10449 Posted November 28, 2020 2 hours ago, Varan said: She sure is pretty. most pied pipers are 4 Share this post Link to post Share on other sites
MaxHugen 488 #10450 Posted November 28, 2020 1 hour ago, weta27 said: Haven't seen much sailing the last two days, except for (yesterday) LR and ETNZ flying out to training way down the back somewhere. They are training out of range of my lens and often towing back in, or coming home early (in which case I've missed them). Pretty low strike rate at the moment - need to up my game. Need to start a GoFundMe page... for a stink boat that can do at least 50 knots. Or become best mates with someone who already has one... Share this post Link to post Share on other sites
uflux 587 #10451 Posted November 28, 2020 1 hour ago, weta27 said: Haven't seen much sailing the last two days, except for (yesterday) LR and ETNZ flying out to training way down the back somewhere. They are training out of range of my lens and often towing back in, or coming home early (in which case I've missed them). Pretty low strike rate at the moment - need to up my game. It wasn’t a dig mate. We all appreciate your dedication to the cause! Just itch feet for some info 2 Share this post Link to post Share on other sites
kiwi39 44 #10452 Posted November 28, 2020 4 hours ago, Sailbydate said: Still can't get my head around that muffin top foredeck. Why not ??? It says to the airflow "go underneath me .... go underneath me ... and if you can't, slide across my smooth, nicely curved topsides" so many words that it says ... none of which say muffin top ... all of which say slinky and sexy 2 Share this post Link to post Share on other sites
KiwiJoker 321 #10453 Posted November 28, 2020 5 hours ago, Sailbydate said: Still can't get my head around that muffin top foredeck. Digs her nose in ...... water off the duck's back! 1 Share this post Link to post Share on other sites
KiwiJoker 321 #10454 Posted November 28, 2020 7 hours ago, breezie said: NO not that simple the hull can be concave and is (i think) just not in relation to a horizontal line when the hull is sitting flat! .... If you think on it for a moment any sort of keel will make the bottom a concave surface at some angle. what the rule prevents is any sort of cathedral (or catamaran) shape Yup. You Salty and Max are all onto it. From a standing start, heel the boat to windward to halve the wetted area aft and create a tunnel effect, and they're off like the whore's drawers. Can't wait to see this design perform in anger, getting up and going in six knots of air. Share this post Link to post Share on other sites
I ride bikes 94 #10455 Posted November 28, 2020 Talked to a bro who did a bunch of math for this thing. Sounds like they are a bit surprised and subsequently barred up about the hull and foils, but more so about their control over the main. Share this post Link to post Share on other sites
Indio 803 #10456 Posted November 28, 2020 4 hours ago, Sailbydate said: Yeah. I think I can see the DNA, fish. ;-) 2020 Dodge Challenger SRT Hellcat Redeye That's junk! This is more B2'ish Chiron.webp Share this post Link to post Share on other sites
KiwiJoker 321 #10457 Posted November 28, 2020 5 minutes ago, I ride bikes said: Talked to a bro who did a bunch of math for this thing. Sounds like they are a bit surprised and subsequently barred up about the hull and foils, but more so about their control over the main. Barred up?? Share this post Link to post Share on other sites
Indio 803 #10458 Posted November 28, 2020 Just now, KiwiJoker said: Barred up?? NDA'ed 1 Share this post Link to post Share on other sites
I ride bikes 94 #10459 Posted November 28, 2020 2 minutes ago, Indio said: NDA'ed Turgid Share this post Link to post Share on other sites
KiwiJoker 321 #10460 Posted November 28, 2020 9 minutes ago, I ride bikes said: Turgid Can't wait to learn more. 1 Share this post Link to post Share on other sites
phill_nz 638 #10461 Posted November 28, 2020 it's all about the difference between wood and rubber for boating Share this post Link to post Share on other sites
JALhazmat 980 #10462 Posted November 28, 2020 1 hour ago, KiwiJoker said: Barred up?? Resisting the urge to knock one out over their collective key boards.. Share this post Link to post Share on other sites
Rennmaus 2,101 #10463 Posted November 28, 2020 Paywall, but anyway, Heaven help! America's Cup whistleblowers Tom Mayo and Grant Calder say they feared for their safety after Grant Dalton branded them 'spies' https://www.nzherald.co.nz/business/americas-cup-whistleblowers-tom-mayo-and-grant-calder-say-they-feared-for-their-safety-after-grant-dalton-branded-them-spies/FRLGNAOAPIXUXQERWFDEIBCEXE/ Just read the thing with "Bypass Paywalls". Phew, this is belonging to worst journalism I've ever encountered, straight out of Trump's new media handbook. No evidence, unfounded accusations disguised with question marks, and victim playing. Ouch. 1 Share this post Link to post Share on other sites
winchfodder 175 #10464 Posted November 28, 2020 On 11/27/2020 at 7:07 AM, Priscilla said: Nothing sticky here... Amazing way the it picks up power and speed. Notice the way the heel to windward comes on when the leeward foil starts to generate lift. Interesting comment in Tip&Shaft designers interview that in order to "take off" the AC75's have to sail at 90° apparent before slowly winding up to close hauled foiling. That will make the two minute prestarts pretty weird. I guess if there is sufficient wind to foil you cream into the box and dance around keeping as clear of the opposition as possible then take a timed run at the line hoping you are not early, foiling all the time. Alternatively, especially if you believe (as it looks like ETNZ can do) that you can be the fastest to get up on the foils and then wind up to close hauled, then you can try and block the opposition to force them off the foils, then lift off and leave them in your wake. Either way it is very likely that there will be major time differences at the windward mark. This will not be a match racing America's Cup, speed kills. Share this post Link to post Share on other sites
Varan 1,727 #10465 Posted November 28, 2020 39 minutes ago, winchfodder said: ...speed kills. Speed thrills. Share this post Link to post Share on other sites
ctutmark 234 #10466 Posted November 28, 2020 12 hours ago, weta27 said: Is the line and tackle from the mast camera (?) mounts to the foredeck a common thing when towing? Haven't noticed the curving black line just forward of the foil in other pics, just an errant line or something else? Share this post Link to post Share on other sites
pusslicker 259 #10467 Posted November 28, 2020 8 hours ago, kiwi39 said: Why not ??? It says to the airflow "go underneath me .... go underneath me ... and if you can't, slide across my smooth, nicely curved topsides" so many words that it says ... none of which say muffin top ... all of which say slinky and sexy Would have been fun to watch the Kiwi's pile on to how ugly this thing is if any of the other teams would have made this. 4 Share this post Link to post Share on other sites
Forourselves 1,048 #10468 Posted November 28, 2020 4 minutes ago, pusslicker said: Would have been fun to watch the Kiwi's pile on to how ugly this thing is if any of the other teams would have made this. Would be nice if you said something worthwhile for once instead of throwing shade at Kiwi's all the time. Share this post Link to post Share on other sites
Priscilla 2,117 #10469 Posted November 28, 2020 6 hours ago, Indio said: That's junk! This is more B2'ish Chiron.webp Wouldn’t float. Share this post Link to post Share on other sites
pusslicker 259 #10470 Posted November 28, 2020 6 minutes ago, Forourselves said: Would be nice if you said something worthwhile for once instead of throwing shade at Kiwi's all the time. That's not why I'm here, but you know I love you anyway. Share this post Link to post Share on other sites
Priscilla 2,117 #10471 Posted November 28, 2020 11 minutes ago, pusslicker said: Would have been fun to watch the Kiwi's pile on to how ugly this thing is if any of the other teams would have made this. Here in the home of the Cup we call a spade a spade and a dog a dog not sure what non Cup holders call them would you care to inform us. Share this post Link to post Share on other sites
Sailbydate 2,436 #10472 Posted November 28, 2020 8 hours ago, Indio said: That's junk! This is more B2'ish Chiron.webp Not bad for a French rocket ship. Shame about the entry level, $3 million price tag. But just another VW to drool over. ;-) 1 Share this post Link to post Share on other sites
weta27 4,031 #10473 Posted November 28, 2020 3 hours ago, ctutmark said: Haven't noticed the curving black line just forward of the foil in other pics, just an errant line or something else? Shadow from the tow line. Noticed also that even when towing, the foil tips were regularly breaking the surface. 1 Share this post Link to post Share on other sites
Priscilla 2,117 #10474 Posted November 28, 2020 13 minutes ago, weta27 said: Shadow from the tow line. Noticed also that even when towing, the foil tips were regularly breaking the surface. Not so sure Weta definitely a massive crack structurally she’s fucked all is lost Zilla will be along shortly to confirm. 4 Share this post Link to post Share on other sites
eurochild 37 #10475 Posted November 28, 2020 5 hours ago, winchfodder said: I guess if there is sufficient wind to foil you cream into the box and dance around keeping as clear of the opposition as possible then take a timed run at the line hoping you are not early, foiling all the time. Alternatively, especially if you believe (as it looks like ETNZ can do) that you can be the fastest to get up on the foils and then wind up to close hauled, then you can try and block the opposition to force them off the foils, then lift off and leave them in your wake. Either way it is very likely that there will be major time differences at the windward mark. This will not be a match racing America's Cup, speed kills. The above makes sense to me but a lot of unknowns especially with the virtual keep clear shape of the boats. One thing the last cup in particular showed is that although with the foiling and speed considerations you’d expect a conservative “timed run” approach, with the calibre of these sailors they’ll probably have a go in the pre start even with these monsters. Anyway, question - have the teams been spotted doing pre start drills? Possibly one of the things being hidden on those trips out behind the islands? Or kept for the sim? Share this post Link to post Share on other sites
kiwi39 44 #10476 Posted November 28, 2020 3 hours ago, pusslicker said: Would have been fun to watch the Kiwi's pile on to how ugly this thing is if any of the other teams would have made this. Some, maybe, but Not this kiwi. These boats are all beautiful and interesting in their own ways. Share this post Link to post Share on other sites
Priscilla 2,117 #10477 Posted November 28, 2020 Beauty is in the eye of the beholder... Hmm maybe not... 2 Share this post Link to post Share on other sites
kiwi39 44 #10478 Posted November 28, 2020 6 hours ago, winchfodder said: Amazing way the it picks up power and speed. Notice the way the heel to windward comes on when the leeward foil starts to generate lift. Interesting comment in Tip&Shaft designers interview that in order to "take off" the AC75's have to sail at 90° apparent before slowly winding up to close hauled foiling. That will make the two minute prestarts pretty weird. I guess if there is sufficient wind to foil you cream into the box and dance around keeping as clear of the opposition as possible then take a timed run at the line hoping you are not early, foiling all the time. Alternatively, especially if you believe (as it looks like ETNZ can do) that you can be the fastest to get up on the foils and then wind up to close hauled, then you can try and block the opposition to force them off the foils, then lift off and leave them in your wake. Either way it is very likely that there will be major time differences at the windward mark. This will not be a match racing America's Cup, speed kills. It’s fundamentally a boat race. Fastest wins. notwithstanding Burling discovering some match race Mojo, it’s part of how they won the last cup. yes, from a spectators perspective an arm wrestle would be awesome to watch, but the sailors will want a faster boat every day and twice on Sundays Share this post Link to post Share on other sites
kiwi39 44 #10479 Posted November 28, 2020 13 minutes ago, Priscilla said: Beauty is in the eye of the beholder... Hmm maybe not... I’d give my left gnad to see the CFD models of how much lift these hulls produce when they’re airborne in ground effect. Share this post Link to post Share on other sites
Kate short for Bob 243 #10480 Posted November 28, 2020 13 minutes ago, kiwi39 said: I’d give my left gnad to see the CFD models of how much lift these hulls produce when they’re airborne in ground effect. I'd say ZERO ground effect. 1 Share this post Link to post Share on other sites
Rushman 221 #10481 Posted November 28, 2020 1 hour ago, weta27 said: Shadow from the tow line. Noticed also that even when towing, the foil tips were regularly breaking the surface. Shadow from the forestay would be my guess if it is a shadow Share this post Link to post Share on other sites
Stingray~ 1,270 #10482 Posted November 28, 2020 38 minutes ago, Priscilla said: Beauty is in the eye of the beholder... Impressive Share this post Link to post Share on other sites
Stingray~ 1,270 #10483 Posted November 28, 2020 10 minutes ago, Kate short for Bob said: I'd say ZERO ground effect. At 50+ AWS and a hull that big there is a touch of it for certain. 3 Share this post Link to post Share on other sites
kiwi39 44 #10484 Posted November 28, 2020 16 minutes ago, Kate short for Bob said: I'd say ZERO ground effect. Interesting. Why ? Share this post Link to post Share on other sites
RMac 300 #10486 Posted November 28, 2020 1 hour ago, Priscilla said: Beauty is in the eye of the beholder... Hmm maybe not... I definitely LIKE the kiwi boat more now that you can see it sailing and imagine how it's bending the air around it, but even it wins and I love the thing, it's never going to be aesthetically anything but an affront. 2 Share this post Link to post Share on other sites
Sailbydate 2,436 #10487 Posted November 28, 2020 2 hours ago, weta27 said: Shadow from the tow line. Noticed also that even when towing, the foil tips were regularly breaking the surface. Minimising drag? Makes sense. Share this post Link to post Share on other sites
JALhazmat 980 #10488 Posted November 28, 2020 54 minutes ago, Kate short for Bob said: I'd say ZERO ground effect. Steady on, we agree on something
