Sorry, shortly after a storm came and took away all our samples :(

Sorry, we were a bit in a rush so these are the only shots we filmed. You can find some photos on www.proas.is. Basically it's a massive steel frame that we welded and got galvanized. The wheels (cadkat catamaran slip trolley wheels) are mounted in between the hulls for better maneuverability. The passage through the dunes is quite narrow and we can not make it wider for conservation reasons.

@@proasisproject do you think with a similar set up and a tractor, a proa with the same weight as yours could be easily launched and retrieved from the water on a sandy beach daily? Or it is a difficult task only feasible sporadically, even with the use of a tractor?

@@gregory1778 Fore my taste it would be too much effort. Preparing everything takes time (at least 1h until the trolley is under the boat) and is a job for at least two due to the weight of the trolley+wheels. Taking the trolley off the boat in the water is surprisingly difficult due to the buoyancy in the tires, again a 2-4 person job. We take everything out and off the boat before we move it to reduce the weight. Even then we are close to what the tires are rated for. Bringing all the stuff down the beach and setting it up takes about 2-3h. So a clear no for taking it in and out on a daily base. You could use stronger wheels (old car wheels for example with stainless steel ball bearings) to support the entire weight and safe on that time but it would still be an annoying job to move the trolley under the hulls/take it off and make sure it sits on there nicely etc. I'm happy we have to do it only twice a year!

The wam catamaran can easily carry 1.5 tons. Hulls are 6m long and 1m wide but you can build them any length between 5 and 8m . The mast is as high as the longest pieces of lumber we could find.

In very light conditions more sail wouldn't harm but in all other conditions its more than adequate. Actually we trial reefing systems right now. This type of sail is quite powerful.

Unfortunately it will be difficult to get these answers. It is Marshallese custom that this kind of knowledge is kept in the family and only revealed to carefully chosen persons.

Yes I figured that. It's weird, they lament the modernisation of the islands, and the loss of their traditional canoe building skills, but don't want to share their technical knowledge (honed over hundreds or even thousands of generations), and they talk about the need to preserve their culrure but then are totally insular about it. It's lucky that western (white) culture isn't so zenophobic and has shared our knowledge of all our technology with the world..medicine antibiotics, communications technology, mobile phones, internet, sanitation, running water, himan rights, westminster system of law etc, if we acted like the Marshallese with their canoe tech the world would still be in the dark ages! I guess I'll just have to work it all out for myself!

Initially there were pretty tight limits for length and width given by the funder. This is the first prototype built according to these. The series design grew a little wider, but not much to avoid overloading.

Search for Drua or Alia, a configuration like this used to be the traditional design on many islands such as Fiji and Samoa.

@@proasisproject thks. and good look for you!

@@proasisproject See here... A origem dos catamarãs... eu sabia que o multi casco teve origem no pacifíco... mas não tinha visto ainda nada parecido. Muito obrigado pela atenção.

Thanks! No not really actually. Doing it for years already. It gets even more easy with stronger wind. The secret is the right technique (as demonstrated in this video). The wind adds stability and does most of the work.

@@proasisproject ..I was thinking of when the waves are crashing over the bow(s) and the wind ripping the sail from your grip.

​@@markthomasson5077in conditions when there are waves crashing over the bows without the boat moving (i.e. heaved to position in preparation for a shunt) there is no sailing anymore anyway.

Thanks, that's nice to know :) Yeah, we keep it like this on purpose. As simple and possible. We don't mind the moving, it's really much less of an effort than it looks like (with the right technique of course). We use proasis quite often for story telling events about climate change and other ocean related activities. For the guests it's always a sensation to feel the wind in their hands and move with the waves and the boat. To be honest I like it alot too. Having a track might make the shunt a bit faster by forcing the sail to the other side but the direct connection is lost. The feeling of a manual shunt is difficult to describe but I don't want to miss it.

Thanks!

Hi, the design weighs about 300kg empty (all plywood and lumber). The sail is 16-17 sqm, not sure what they built for that particular one.

The resort (MIR) is in the delap area, way behind the bridge. You can find a chapter marker in the video. The main copra plant (Tobolar) is next to delap dock (the main dock for container ships). This is also way past the bridge. There is another Tobolar plant towards the Laura direction (opposite direction) way past the airport but that one is way smaller and never looked busy to me.

Absolutely, this is a typical example of green washing at the expense of the local people.

It is, Gary provided the design pro bono to support the project.

Thanks! This is a traditional Marshallese canoe. By custom, the knowledge how to build and sail these can not be sold or given without permission.

Have a look in the description, this video has a sad story unfortunately :(

Absolutely agree with your last sentence. A proa is definitely not the best design for inland sailing. That said, we only do inland sailing over here, the Baltic sea is just not a real ocean. We've logged well over 1000 nm with Proasis, considerable stretches singlehanded. Believe it or not, shunting our canoe is really as easy as the soothing voice tells you :D If you are still not convinced you are very welcome to join us sailing and see for yourself. But be warned, the girl with the soothing voice might join too 😅

500kg is to much for a 9m plywood/scrap wood proa for a budget of 4k? I dont think so . . .

Oh no why crying?

Thanks!

Muchas gracias!

Both (kind of). The foils themselves (old F18 daggerboards) run in casetts up and down. They can be adjusted for the water depth or even completely retracted. The connector tube has a fuse which allows it to telescope and kick up the rudder so far that they clear the surface, even if all the way down. The fuse is reset by simply pushing down the rudder frame. It snaps back automatically. The entire setup consists only of two tubes, a round piece of PVC and a bungee cord. No metal or complicated mechanic. So the draught of the rudder can be preset. If something goes wrong (shallow spot, rock, reef or heavy floating object) they kick up.

so is the fuse a notch that the bungee grips? so it pops out and is then free?

​@@dominictarrsailingno it's never free. There is a smaller tube inside of the yellow one. Both tubes have a semi circular cutout. The cutouts are lined up by a PVC cam which is tensioned by bungee cord. If the rudder hits something the inner tube is pulled out about 30cm to kick the rudder up. Sounds complicated but it's as simple as it gets. Don't worry if my explanation is difficult to follow, there will soon be a video showing that part in detail 😅

I think I can imagine it but a video is even better!

​@@dominictarrsailingworking on it 👍

Thank you! The rudder mechanism is unique, we can proudly claim that we came up with that on our own 😊 But everybody is invited to copy!

Thanks! No, the placement of the lateral plan (leeboard, foil, hull shape or whatever) on the windward hull is the exception. It's mainly promoted by designers with a western background, there is no traditional design with this feature. The reason is that the lateral plan on the windward hull puts a lot of bending moment on the entire structure, in fact really counteracting the design idea of a proa. Proasis has no problems with getting caught aback whatsoever. In the last 3 years it only happened once in zero wind because of a 180° shift. Most of the time the reason for getting caught aback is either an imbalanced design of lateral and sail plan or wrong handling. As pointed out in the video it's important to work with the wind, swell and canoe instead of fighting the elements by applying force.

⁠@@proasisprojectDo you have a video about being caught aback? I have never seen a caught aback proa recovery video, it would be interesting. Do you ever carry a dinghy on deck?

​@@wailinburnin no, that never really happened. It's not a problem we think about much because it doesn't play a big role in sailing her. Actually it only happened twice so far. One time the wind died down and changed direction by 180° while we were drifting. The other time we sailed into a gybe in more wind on purpose just to see what happens. Not a big deal after all, the boat either recovers on its own or by using a paddle. If you are interested we will make a video once we get back into the water.

@@proasisproject I was just thinking it would be interesting to see, you’ve got great drone clips. All the best to you, cool boat!

@@wailinburnin actually that's a good idea, will make one but it will take a couple of month before it's warm enough to get back on the water.

Thanks! 👍

Thanks 👍

Sounds fine to me, sure it's not something wrong with your device?

@@proasisproject Hmm, just been watching over a dozen other videos with no problem, on a PC with sound system. I have to turn the sound way up, and the music is drowning out the narrator. Lets see if anyone else has issues.

Sounds fine to me?@@dnomyarnostaw

Rewatched: Not having difficulty making out her words. Could see why the levels could be adjusted a marginal amount.

There are no plans, these canoes are built in the traditional way by specialized people only.

Glad you enjoyed it!

I'm holding the camera. The boat is tracking forever if properly set up.

The shunt is actually not a particular good one because the tip of the sail didn't really fit to the canoe and we had to improvise, resulting in a lot of tying. Same for the steering paddle, I set it up in a wrong way so we had to deal with it on the water. I kept at least one shunt in to show the great boat handling needed to sail these canoes. Performing the maneuver without the stays requires a lot of practice, especially with a large and heavy sail in strong wind. If anything goes wrong and the shunt is not in perfect harmony with the motion of the canoe the sail drops. It feels almost like a dance if performed more fluent and beautifully than shown in the video. When the good guys go racing they hardly drop the sail, so its not really a thing :D

On sailboats in Bali the setup is really simple as with other traditionally rigged crab claw sails. Some don't even have anything tied to the sail at the bow, just a basic forked stick type arrangement so shunting happens really fast, basically the amount of time it takes to walk from one end to the other and back again with the rudder paddle. And those balinese boats are crazy fast. Google Balinese jukung race.

​@@pakde8002would love to race both designs against each other!

​@@pakde8002Dzień dobry, bardzo dziękuję za bardzo dokładne informacje. Czy wiesz gdzie można kupić plany takiej żaglówki z Bali? Pozdrowienia z Polski.

Thanks!

Sure, can sail forwards and backwards for example ;)

@@proasisproject that’s something

Using the same amount of material, you can build a proa with a longer waterline than a cat, which makes it both faster and more seaworthy. So it's lighter than a cat with the same WL, which means it doesn't need as much sail area, which means the rig can be smaller, making it lighter again! the comparison with a trimaran is even more favorable. The disadvantage is that hulls cannot be optimized for the direction they travel, they are just long and skinny same at both ends, and also the complexity of the shunting system. but my favorite advantage is that you are sailing a floating conversation piece that's very unusual, unless you are from a small atoll in the pacific!

@@dominictarrsailing I like that term floating convention piece I own a wharram and you could say the same! Happy Sailing!

@@StrawberryGarcia yes! as a fellow wharram sailor I can confirm!