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For now we're training quite far from the shore, when we feel ready to get faster, we'll get closer and should have a flatter sea 🤞🏻

I was thinking the same thing. It could be a good practical way to stress test the boat.

@@sp80record hopefully it's built for a few bumps

@Sputnik2222 Honestly, the boat is doing pretty well in those bumps...it's for the team on the chase boats that it's more difficult 🥵😂

@sp80record good to hear. Go well guys, and go fast!

Nous aussi ! 😍🤞🏻

Thank you 🫶🏻

Oui, on les suit avec attention !

@@sp80record Merci de l intérêt porté a ma remarque. Il semblerait que l idée soit de maîtriser la surface portante de l aile par un bridage ajustable . Demarrage en C shape extrême pour aller vers une aile plate. Facile à dire plus compliqué à réaliser .... Bon développement ! Thierry

It was, but since then it's been reaching higher speeds than that, pulled by a kite 👀 The ultimate goal is to break the world sailing speed record. It's a long journey that first began with towed trials 😉.

It is indeed! Breaking the world sailing speed record is an incredible challenge, but not the most practical 😇

Мне жаль эту команду😢вы не поняли главное: как и почему достигнут рекорд скорости на парусе. Не проанализировали ту конструкцию и не сделали выводы. Только с помощью аэродинамической разгрузки вы сможете снизить сопротивление и получить результат. Мне стыдно за вас😢

​@@MrOleganjan what are you talking about ? It look like you are talking without taking any interest in the subject... The kiteboat is on two foils, but the first test are just to slow to show them.

At the speeds it's going to go the cavitation causes too much drag.

We do have a “foil”, lifting downward 🙃 It has been designed to anchor us in the water, as opposed to what is currently done in competitive sailing ➡️ at the very high speeds we are targeting, we don't want to fly but to stay really flat on water, kind of like a formula 1. If we go into more detail, the aim is to lift the boat so that it skims the surface just above the waves, we call this "planing" ➡️ of course, the smaller the waves are, the better our boat will perform!

It’s the only designs working at that speed you can’t use hydrofoils because of cavitation

Indeed! We have a foil, but it has been designed to anchor us in the water, as opposed to what is currently done in competitive sailing ➡️ at the very high speeds we are targeting, we don't want to fly but to stay really flat on water, kind of like a formula 1. If we go into more detail, the aim is to lift the boat so that it skims the surface just above the waves, we call this "planing" ➡️ of course, the smaller the waves are, the better our boat will perform!

Thank you! We're trying to go way faster - 80 knots (150 kph) to break the world sailing speed record. Step by Step... 😇

I guess the best point for foils is to counter drift from the horizontal force from the kite. But this is why I think Syroco approuch is much better, because it counters the sail horizontal force in exactly the opposite direction and most of the boat would stay afloat using the kite push instead of the foil. The foil on the syroco is just to counter the sail and to keep it in the water. Also more aerodynamic, but it has more challenges that approach. Vestas Sail Rocket also counters the sail force in the same axis that it needs to. Besides, all the fastest sail boats use foils. But I guess there is something wrong with Sp80 design, looks like it drag a lot of water.

@@angellestat2730 Here is my reasoning regarding HR foils, which are always going to be the inhibiting factor in the attainment of high speed. In contradiction to popular perceptions about HAR foils, they are made for efficiency, not speed. Speed is relative, and the only reason they are assumed to be fast is becaused they are being compared to conventional sailing craft. LAR foils are faster, though less efficient. Meaning, they have a much higher potential speed, but less efficiency - less power. But when they are geared with an appropriate power to weight ratio, their speed potential is much higher. Just look at airfoils. And given the the density of water is 700 times greater than air, these principles are greatly magnified in hydrofoils. Simply put, the slowest moving aircraft have HAR foils. While the fastest have LAR foils or have severely reduced the size of the HAR foils to mitigate their negative effects. The solution is to use LAR foils.

@@robertcain3426 Sorry. But I can not find nothing on Har vs Lar foils. There is one single site with cons and pros, but without a single graphic, it looks that you are using definitions that are no popular at all on English. About the speed limit of foils.. It would be possible to use the same technology of torpedos, that creates an air bubble around to reduce the drag? Once they accomplish some good speeds, I think the next step should be to change the kite design, to something more aerodynamics like the kites of Enerkite. Maybe using a tether with some kind of spring to regulate tether tension and maybe the kite could also fly with some algorithm.

@@angellestat2730 I agree that the SP80, using hydrofoil racing boat foil technology has a good chance of breaking tbe existing record. I was unaware they were using this type of foil. Cheers

Kind of 😅 The kite you can see on this video is way too small for our boat (12m2) 😇 It was mostly to test our control systems with a small, easy-to-use kite. Now we're sailing (faster) with kites ranging from 25 to 55m2!

@@sp80record Fair enough! Looking forward to seeing how it performs when it passes the 50 knot mark. 😎🇦🇺

Cavitation causing to much drag

We have a "foil", but lifting downward...It has been designed to anchor us in the water, as opposed to what is currently done in competitive sailing ➡️ at the very high speeds we are targeting, we don't want to fly but to stay really flat on water. Our number one priority at 150kph is stability, and flying would be unsafe for our pilots 😇

Not anymore 😉

In 2024 !

1000 kg 😂You don't understand anything. This device is planned to be launched on Mars!

Encore un ignare à l’humour inutilement acide qui n’a jamais rien réalisé dans sa vie…

quel commentaire de merde....

Il pèse environ une tonne 🏋🏼‍♀️

It would be, but it's not possible 🥲 Our foil is our most confidential part on the boat, it's key to break 55-knot barrier! We try to share as much as possible of our story but we have to keep a few things for ourselves 😉

@@sp80record Which is of course why that's what I'm most interested in. 🤣 I'm inclined towards a ventilated super-cavitation design, but hey. 🤷‍♂

Almost! We have super-ventilating foils 😇 You can learn more about our choice here : sp80.ch/finding-our-vision-in-an-ocean-of-possibilities/

@@sp80record Thanks! Very interesting. 😎How is ventilation induced at low speeds?

Merci beaucoup ! 🥹