Te Rehutai - Sailing at 50 Knots
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- Опубліковано 15 жов 2024
- With the blink of an eye, two months sailing Te Rehutai in Auckland has gone in a flash.
It may not seem like much- but the testing and development benefits has far exceeded the expectations for the team. But now, it is time for the great migration of Te Rehutai for a long northern summer ahead getting used to the unique characteristics of the waters to Barcelona.
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keeping it flying in the TURN, is truly the trick of all times !!! good work, simply inspiring to see !!
It is the product of great engineering and practice.
How has it inspired you? You described it as inspiring.
For those who don’t know the foils on each side of the boat are controlled by computers sampling the data off a multitude of sensors at 10s of thousands times a second. This type of hydrofoil yacht has only really been possible in the last 10 or so years due to how hard it is to control the foils’ leading edge at the speeds and loads it’s experiencing
I figure they may a well go automated and leave the decision making to the computer.
The crew using a flight controller while in race mode AC75 must be in manual mode unlike the AC40 Race's as it's youth and entry to AC75 will use automatic flight you have mixed the two up now every dumb A.. is going to believe you should read the rules first mate sail-world ac75 flight controllers. Wikipedia.class rules AC75 flight controller take your pick it's in black and white have a great day spread no lies now. You here😂
@@shiraz1736 Why bother at all with human participation?
@@hd-xc2lz I have to agree, I tried watching the last Americas cup. I can certainly appreciate the speed they produce but after a handful of races I would have rathered watch paint dry.
@@shiraz1736 Boat movement here reminds of video game representation of boat movement, waves and current inconsequential.
As an Aussie, I'm proud that after 132 years of United States dominance, we came along in 1983 and showed they could be beaten, in part by an ingenious keel design. New Zealand then went that idea of great design and took it to an INSANE aerospace level! Their boats are more planes than boats!! Well done brothers. You deserve every victory! Good luck in 2024 against our shared brothers and sisters in the United Kingdom.
I don’t mind these boats but they should never have been in the Americas cup.
Still a fan of the Dennis Conner monohull days. I live in Rhode Island, 10 minutes from Newport and Americas Cup Boulevard, was a sad day when SF took the Cup to the West Coast, not the same.
@@shiraz1736 Agreed. Scant concern for current nowadays thanks to hydrofoil tech, closer to sailboarding than sailing. And as we can see in the video above, only a matter of time before human participation is deemed unnecessary. Americas Cup has become a tech borefest.
Never underestimate a Kiwi in his shed.
@@sixstringedthing great comment ;remember burt munro
Don’t be modest. I’ve seen a few runs that shows her leaving 50 knots behind I’m sure.
Captain Nat Herreshoff is looking down from the heavens with total glee at how far things have come in 100 years of boat design and crew teamwork!
And materials technology 🙂
That hull paint scheme mesmerises me.
I'm having enormous difficulty in getting my head around the physics involved. Simply incredible.
don't worry about it.. none will unless they actually experience it firsthand I think XD
the only thing I can say, it all happens on the sails that's mostly work like airplane wing, the concept is to direct the boat relative to the wind so that it creates "lifting" force to the boat and the crew make use of that force to make the boat move forward...
with proper angling and ideal wind the boat can move 3 times faster than the wind
newtons 3rd law will suffice-
@@brettharman8921 One would never have guessed…
its a hydro foil it pushes the boat out of the water so its flying in water less drag makes it faster
@@mexicanjesus8672 I fully understand what it is Mex…LOL, I’m more intimating that the sheer processing power involved in maintaining foil pressure balance with the rudder’s is insanely difficult given the dynamics involved. Unless that very thought comes into a person’s head, they don’t understand the first thing about the physics involved.
The physics of this still make me smile. What an amazing craft.
I love Rangitoto in the background. It triggers so many happy memories. Love from Austria!
Show offs! Wow that's so cool. I'm like in my 40's most stuff gets boring. Seeing a sailboat fly is still amaze ballz. Like I'd love to experience that sensation as crew. Stellar. Great camera work and editing too. The youtube algo sent me a good one.
Amazing guys enjoying seeing her flying at that speed thank you.
One of the most futuristic sights available today. ❤
this tech has been around for almost 100 years and was used by lots of craft since the 1950s
@@bryannonya9769 They definitely didn't have these boats 100 years ago. Check your knowledge.
My goodness that is an epic boat. Breathtaking footage!
These Boats are phenomenal, everything about them to sail how they do. Such a wonderful beautiful sight to see.
That jibe/gybe. It's amazing how little they have to ease the sails when broad reaching and running.
Can't fathom this at all, was happy with 4 knots out of my Top Hat.
LOL, so was Dad!
That's incredible. Amazing coordination and teamwork, quite aside from the jaw-dropping design.
I have no idea what I'm watching, but holy fuck it looks cool would you mind explaining it to me? Like what teamwork? and what are the guys on bikes actually powering?
@@noone-ld7pt I like your pfp, so here goes :)...
I'm not a competitive sailor, but I know a reasonable amount about watercraft from my grandpa who hand-built several wooden boats (a couple of which were of his own design). So that said: this amazing yacht is a "hydroplaning monohull" design which means that it basically acts like a normal sailling yacht at low speeds or in rough conditions, but once it gets moving quick enough (as seen here) those curved arms sticking out the sides of the monohull can be lowered into the water to submerge the hydrofoil surfaces ("water wings") mounted on the ends. This allows the yacht to semi-magically become a hydroplane watercraft i.e. it lifts itself out of the water and is supported solely by the upward "lift" of the hydrofoils while still being able to maintain directional control. This massively reduces the drag caused by water moving around/past the hull (and "meeting itself again" behind the rear end of the craft which causes a massive suction effect that can add a huge amount of drag to poorly designed hulls). That's all well and good when you're moving in a straight line with a following wind behind your sails, but when you want to turn the boat across the wind (called "tacking") to change course or make headway into an oncoming breeze, things get a LOT more complicated.
Edit: I thought the "guys on bikes" were raising/lowering the hydrofoils manually, but another commenter mentioned that this is all computer-controlled. So the crew must be managing the sails and generating power to run the electronics/hydraulics which control the hydroplane arms.
I was amazed the first time they were test the America’s Cup boats and they pulled away from the chase boat (the chase boat could not keep up with them).
and you think a chase boat is the benchmark of boat speed?
would love to see a fully autonomous / AI piloted version of that to see how fast it can truly go
Very impressive. Now please do the same trick for cargo ships......
And using sails
pretty cool. someone turned big boat sailing into windsurfing. love it.
50 knots is fast! In fact, the fastest cross Atlantic boat trip averaged 53 knots and took 58 hours. This boat could almost do that, as long as it has the wind.
well, and as long as there are like zero waves. this thing would torpedo into the first one it encounters and be destroyed 😅
had you ever sailed you would know the wind never blows in a helpful direction
The music just makes it even better
its amazing how the sails are just large enough for the sponcers!
Crazy fast.. Yet crazy smooth
Beauty in motion. Love this NZ team.
Incredible. Sail, on a whole nother level.
Thanks for nice pictures.
Aotearoa forever and showing great sailing in spain also 🙏
That's New Zealand
@@robertbaird4822 they are off to Barcelona now
Wow that final clip or her going past Auckland, fantastic
What a beautiful sight.
the way they pull the foils up and down reminds me of those lizards in the desert that lift their feet into the air to not have them overheat haha :D
Give them the trophy already!
This just appeared in my feed....and now I have a new hobby.
That's a cracking pace looking red hot 🔥 look out competitors we are coming and coming in strong 😊
Wow, the two guys at the back are peddling like craaaazy!
Hey, you are doing 50 knots! How's the view?
I don't know but my back hurts!!...
Amazing boat!...
Majestic
We are ready
Orsome!
The competition is watching closely.
"How can we beat that..?"
I just love seeing a boat flying above the water - epic.
You guys have an extra foil i can borrow. My "wing foil" sunk to the bottom of the lake. You guys made that look so easy. Most don't understand the work that you all put in.
How about doing a beach fly by after a race. I was in Barceloneta today when you won, so many Kiwi supporters there
So is it flying or sailing more? Is it a plane thats kinda sailing or a boat thats kinda flying?
Does it really need the water?
Magic, everytime !!
I know it's trendy editing, but why keep changing the shot every second of so?!
I love the noises from terminator movie
this give flying hulls a new meaning..
Competition sailboats have really become glider style aircraft that land and take off from the water.
Such comfortable liveaboard cruisers..
.. I don’t think that was the design brief..
Would be awesome if the added "drag race type event" in yacht races
Looks like team New Zealand will be holding on to that cup for quite a while.
No body in New Zealand gives a sh!t about these disloyal tools any more!
Very cool. But what is the job of the two guys in the back???
What a beauty
If you would make this boat twice as long (and width), would it be faster.
Could you replace the crew that is cycling partly with batteries, electric engines and solar?
How would this boat stack up against the sailgp cats in the same breeze?
faster upwind and down about the same on reach
So nice, so speed, the Best!!!
I cant help but think the front of each cockpit should have a soft rubbery material just incase not that hard plastic looking rim.
Such an alien craft. Amazing!
why aren't the cyclists seated on their back instead like a normal bycicle? I always thought that was very dumb to do since the first time they had cyclists and they don't seem to change. is there any good reason for it?
Imagine if this came sailing onto the course in the 1930's with the J Yachts or 1950's 60's 70's. This design is still hard to believe in the 2020's!
It's amazing and the challenge is coming soon. GREAT JOB GUYS !
Is it still sailing or more like flying?
amazing tehnology. I wonder if it can be combined with supercavitation on the wings for even more speed ....
Can someone that us has some expertise explain to us laymen: 1) why does it look like it’s floating? 2) how does it reach such high speeds without a motor? 3) how can channel winds no matter what direction it’s traveling?
1. It is being lifted by horizontal foils under the water, which are generating lift (like a plane wing does) as it moves through the water. 2. The sails are generating forward thrust the same as a normal sailboats sails, though these are a lot more efficient and the drag of the boat is less (due to only the foils being in the water, which are much less draggy than a full boat hull). 3.These boats cant go directly upwind, but about 35 degrees to either side of it (i.e. tacking). When they get to the top mark and are heading downwind (again 30 degrees either side of directly downwind) they are going 2.5 or 3 times the speed of the wind (i.e. wind is 15 kph, but boat speed is 45kph). So even though you are heading the same direction as the wind, it feels like you are heading into the wind -the apparent wind is coming from the front when you are moving. If you stopped it would feel like its coming from behind. So it looks like you are always heading into the wind.
@@simoncasford9640 Fantastic explanation! Wow, thank you!!!!!!!!!!!!
Incredible technology
With the comms ❤ ETNZ looking fast ⛳
It is still rounds in a bay, Ultim class solo sailing accross the oceans on foils is much morz impressive.
Why can't they both be equally impressive in their own ways? Comparing these two is like comparing a Formula 1 race to Dakar rally.
The color of that thing is absolutely gorgeous!
Why not give the outriggers? aileron control like a plane, also elevator control to the rudder.
Surely there is way more in these boats than 50 knots? I thought some teams were reaching 50 knots in the AC-40s? I know there are physical limits around cavitation etc. although not the specifics.
As far as I know, even with flaps, it's not currently possible to design hydro foils which provide plenty of lift at low boat speeds (essential for self-starts) without hitting a speed ceiling due to cavitation destroying the lift at about 50 knots.
get her rippin Boyz..Rita and Rosa are training hard...Love yas 😘
I so want to be at the helm of that beast! What a great adrenaline rush.
How come they don't have small shields in front of them to allow airflow over them better? Also - retractable air fins on the side allow the wind to flow along the side of the ship smoother or increase lift to get the foil out the water more?
Lift equals drag
@@WeighedWilson how? Just interested as I would have thought more surface area going through water would create more drag than the counterpart cutting through air to create lift? Suppose there is a fine line but the plough wave the boat was making looked large.
Wonder if these will ever do ocean racing, would love to see them do Sydney to Hobart
Fast but fragile, she wouldn’t survive in any kind of larger swell
yeah these boats really can't handle serious breeze or swell. There are offshore yachts using foils though - check out the Vendee single handed round the world yachts - they are just as impressive in terms of speed and engineering
They would break.
Sounds a lot like Nathan on those comms.. or am I imagining things?
You are correct. He is one of the 2 helmsman.
@@tristankiddie1710 so are we gonna sail 2 Helmsman in the 37th cup?
@Roslyn Hita it seems likely, save people having to cross the boat
@@tristankiddie1710 I would not want to face off against the two greatest 49er helms of all time... xD
@@49erCanMtl I know what you mean, but Slingsby (it seems to me) will give at least as good as he gets, and is just as strong in match as in fleet racing. Not sure that the US campaign will provide him all the other needed ingredients, though. The current kiwi team is fearsomely deficient in weak areas, except perhaps their unfortunate dependence on ethically dodgy stakeholders (which they seem to be able to tune out).
Ainslie might be a bit past his best. It's very surprising to me that Spithill has not fared better in Sail GP.... it seemed to me that he and Francesco Bruni could definitely have taken the Cup home last time if talent and consistency on helm + tactics was the only crucial ingredient.
Красота, но больше нравится "ручное управление", когда единение с Природой и шелест воды. Техно, роботы, ИИ- мимо, в таком занятии. Поганят прелесть паруса, ветра..
What a rush!
50kn is 92km/h or 58mph, for those of us using ordinary units.
Looks great ….but can’t really see the fun having my head stuck in a boat 😮
I never knew and I want one.
very beauty ,it,s a wonderful ...
Te Rehutai. Kia ora my boy 🫶
Noob question.. people cycle on the boat? Hence cyclor??
Go you good thing , amazing, your going to smash them . 💙🏆💪👏👍👌🤙🍾🥂
In Ministry for the Future by Kim Stanley Robinson there are ocean liners that run on wind and ride on hydrofoils that transit the Atlantic Ocean in a week or so. I wonder how much this could scale with extremely advanced computer control of the sails and foil surfaces.
0:35 Are the winches low inside of those pods? They have to winch bent over like this?
They're on bicycles.
Rule changes allow leg power, now recruiting track cyclists as crew members
Excellent !
I rip on my 14' sunfish!
No foils needed - all rippin'!
Jesus, Mary and Joseph.......this ain't "sailing", but boy oh boy it is exhilarating to watch.......even the sounds are eary and intriguing
the hull is a lifting body... nice design
Wow, bobsleighs at the sea.
Really cool.
its technically flying . what a beast . dont mind me
Incredible vehicle!
Impressive
These newer sail boats are insane. If we applied that tech to transport we could make international travel and shipping much cheaper and less reliant on oil. Oh to dream…
Loaded in there like a bobsled team😮
But how does it handle above Sea State 2?
Earnest Mc Dunst: Dr. Hydrofoil, what are you doing here?
Dr Hydrofoil: I'm here to spoil your party, what else? - Insert Evil Laugh Here...
Someone knows who is the chief areo engineer of team nz? Please? I would like to offer him a job in f1..
I remember bernasconi.. He has a Italian surname too,What luck! 😅🤐
love this game!