Відео

@@patrickcreighton5109 🙏🏼🙏🏼

@@macmaccourt 🙏🏼🙏🏼

@@dangalvin3922 you should see the owner's hull 😅

That approach is more about foiling (stability issues with foils ramp up over 60 knots). This approach is all about a stable platform (planing) to soak up alot of kite power. They do have a foil, but it's to keep them down on the water. For tanker hybrid power, have a look at airseas.com for some interesting applications

@ yeah I’ve seen all the green approaches to wind power and non are viable options just yet . Foils aid stability once you tune it right , and have an outrigger stabilises better when with one side not two

@@pauldean8638 over 50 knots cavitation kicks in. Water vapour forms over the foil surfaces resulting in an increase in drag and loss of stability. It's a tough nut to crack.

@@booknoteswisdom6799 sailing as defined by the official body, the WSSRC. Powered by wind, no electronic assistance with steering or stability essentially. A mast is just another way of transferring the wind power to the craft.

@@robertthurston6858 now at 43 knots, next target 50. Progressing nicely for an attempt in 2025 with the big kite and evolved daggerboard foil.

@@apeace9800 remember the lift from the kite. They have a daggerboard foil to keep them down which is more the challenge here. This approach is about transferring substantial power to the craft while planing and minimising the weight penalty from the power source. In terms of application, they are intending to spin off the foil, kite and hydro tech. Have a look at airseas.com for an idea of a potential use case.

@@1mwebster now at 43 knots next target 50, they're progressing steadily which is the name of the game if you want to pull this off safely

All valid points. They are building to the bigger kite in steps, latest version is 30 sqm. Airframe made frim Aluula™ and 14 battens keep the kite’s shape stable. The aim is to get to 55 sqm. Wear and tear on ropes and gusts are all key challenges.

Hydrofoils become unstable over 55 knts resulting in an increase in drag ad loss of stability. They do have a superventilating daggerboard foil, but it is designed to keep them down, not help them take off. That is more the challenge with this approach.

@katamaranscom appreciate the reply. Thanks.

or "the knots"

@@sm5976 Thks 🙏🏼. No, this approach is all about powering up with big kites and planing. They do have a daggerboard foil, but it's to stop them flying off rather than the other way around

@@eastcoastsailingcenter7768 we go into more detail on their approach in a longer video on our YT channel.

@@Lilcurious1 yes, don't see why not

​​@@katamaranscomLarsen described Sail Rocket's foil as "a log" & was sure it could be far better. The kite won't ever beat a fixed wing. I'd say the OP designs need to go to a windsurfer style rig.

@@Ghekko-kw3zz disagree. You can transfer more power to the craft with a kite with less weight penalty. Both kitesurfers and windsurfers previously held this record. The kiters were faster.

@@katamaranscom that's not the key factor to beating sail rocket. I'm waiting to see what Larsen comes up with for a dual directional foiling***** (we email & he is very cagey) but it won't be flying a kite.

@@katamaranscom consider paramotors vs fixed wing ultralight aircraft. A kite, even a very fancy one can't match the efficiency of a solid wing.

Quite 😅

@@tomthompson7400 sailing as defined by the official body, but there are differences of opinion on that. Powered by wind, no electronic assistance with steering or stability essentially

@@katamaranscom yep ,,, cant argue ,,, but is it really sailing , like I said its very sleek either way.

@@dc14522 thanks 🙏🏼🙏🏼

@@katamaranscom As an engineer it's rare to see videos that actually address the technical aspects of accomplishing such feats. Discussing how the foil keeps the boat on the water and how they overcome cavitation was especially helpful. thx.

@dc14522 kind words, thanks. I am sure they will spin off some of this foil tech, they have invested a lot in this area

The world record is held by a boat which won't go at all on a port tack.

$69 million I see, should cover it 🤞

@petermolanda8169 foils are unstable over 55 knots. They do have a foil, but it's to keep them down which is more the challenge with this approach

@@cinapanina powered by wind, no electronic assistance with steering or stability. As defined by the official body.

@@kg5uhsjoseelsolitario521 🙏🏼

@@douglasmontgomery6315 Hi Douglas, thanks for the feedback. I'll ask Lagoon, give me a couple of days

@@mrjeff4832 .. this year I have been a good buoy

@@darren5472 🙏🏼

@@davegeorge7094 kite power + stability + anchoring down with a daggerboard foil is their game

@@54Rocketeer unstable over 60 knots creating instability and drag

@@fooman2108 NSFWWW Not safe for watching with wives

@@MistiMoan there is a problem with foils over 60 knots. They become unstable and create drag. They do have a foil, but it's to keep them down. The challenge with this approach is actually to stop flying off

@@JoeyBagOfDonuts-r1y smooth the ride!

@@fixedguitar47 that is a big kite

@@clivestainlesssteelwomble7665 yes, agree, first movers

@@alainremi267 top speed for an Imoca is around 37 knots. Not enough to beat this record. There is a challenge generally with foils over 60 knots. It's a physical phenomenon called Cavitation which results in an increase in drag, instability and loss of lift.