VO65 Boat Below The Waterline 🌊 🟢 BONUS CONTENT
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- Опубліковано 6 вер 2024
- Let’s get technical - under the waterline of a VO65 that's been round the world twice 👀
It's not every day you get underneath a VO65, so when we saw Viva México was out of the water in Alicante we couldn't resist taking a look... With Niall Myant-Best.
🟢 Bonus content from a shoot at the end of last year
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Couple of stuff I could mention here:
- the constructors do a great job making the daggerboards light and partly buoyant such that they are at equilibrium and can be raised/lowered by hand. There is a video of a person (on AkzoNobel I believe) stumbling on deck and pushing down on the daggerboard and it goes straight down effortlessly. They can be hard to move because of the lateral loads on the daggerboards that cause it to push hard against the hull therefore causing a lot of friction.
- the daggerboards aren't asymmetric because they push in different directions. In any case, you only ever use one at a time so there is no "cancelling out" thing at play here. They're mostly used upwind, and no matter how canted the keel is downwind, you won't put in a full daggerboard because the boat would slide less downwind, which helps with VMG since it's directly downwind motion. Upwind, they are there to help to boat point up and gain upwind, so they act as a wing, and if you look at the orientation, it lifts windward: the daggerboards are helping the boat slide upwind which also helps with VMG.
- I'd say the rudder flaring is less on IMOCA because with foils they are meant to sail flatter and thus need less angle to make it straight in the water.
- those slots at the rear aren't for an emergency rudder, tough I guess you could try to rig up a system with them if ever there is need; they're for hydrogenerators that slide in and have a little propeller that slides with speed and produces electricity for the boat.
Love the content, keep at it ;)
Thanks Niall. I'm a great fan of the Ocean Race & have been watching for years. This was an extremely informative piece, giving us a great view & explanation of what is happening under the surface. I certainly learned some things. Can't wait for the action to begin. Cheers from Canada.
Thanks Jack 👍🏻
I have found out that the speed sensor on the keel is because the one on the hull will be popping out of the water / cavitating part of the time. So the keel positioned one is much more reliable. Seems obvious now.
Now that my kind of video! Nice to see The Ocean Race posting goooog contents again. Keep on.
Let's have it Nial!
Great to see the videos back! I really enjoy these technical deep dives. Boatyard or on the hard talks if you will.
Such beautiful boats, loved seeing them in Spain!
Great content, can't wait for the next edition
I am excited about the IMOCAS being part of the Race, but(!), I am not convinced they will be a dominating force against the older VO65 class.
you have two rudder for having one alwys perfectly vertical it reduce drag and forces on the rudder even if the boat is close to the wind
I love Imoca's.
I know very little about yachts, but do any have stepped hulls as with aquaplaning power boats?
Love the sweater. Who supplies the?
⛵️😍
Minimal wet surface vs maximum surface effeciciency
The Volvo ocean race use to attract the absolute best sailors with the Open 70s…now there are so many junior semi pro teams… I miss the old teams and boats…
Looks really tired
Just 1080p? It´s not 2002 anymore.
We’ll try to upload some higher resolution content in future 👍🏻 Thanks for watching!
Most stuff is 1080p on youtube regardless of production quality...