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@@richardcalvert387 i have tried that and the spray found a way round. Possibly my hull shape is too splashy. If it was longer could be skinnier with finer entry

thanks! there are still a few more I would like to try also!

it's 4.2 meters (because that's what would fit across my catamaran without sticking out) the sail is a little more than 8 square meters I think. less than 9. The boat is only about 60kg rigged, so sail area displacement ratio is mid thirties (including my body weight)

@@dominictarrsailing that’s pretty fast for a boat that size!

@@markpalmquist thanks yeah its pretty close to the theoretical maximum based on square root waterline length, and lots of things that could still be improved

@@dominictarrsailing depending on how much your boat is heeling you may be able to squeeze out another knot of speed with a slightly larger sail. The length water line formula can be broken by a proa and catamaran if the hulls are skinny.

@@markpalmquist yes, or even better a more efficient sail (with better lift/drag ratio) next I'm adding tell tails so I can actually see the flow, and I've also been thinking about how have adjustable tension along the spars and hopefully take some wrinkles out. So far I've made do without that, but that is gotta be interfering with flow. and if I add a hiking strap along the windward gunnel and a better platform I'll be able to sit out a bit further and thus have a bit more righting moment

@@MdG-o2q oh haha no i didnt find any beer. But i did gind quite a few boat bits so was happy about that!

@@markthomasson5077 i have one stay to the ama (essential) then one to each end. These dont actually go to the ends, they go to the lee side back a bit, which makes a better angle and reduced snags a lot with a crabclaw. I need to able to tilt the mast to windward (for going downwind), so the mast step needs to be able to pivot in all directions!

@@sailingmare6563 sorry this is a metric channel. That is 113 kg. Im about 65, but i have had 2 people sailing it a few times now, and also 3 people paddling it. With 3 people its submerged close to the drains so should really add plugs (only need drains when sailin hard or towing) My question is how much space do you have to fit it? Its 40cm wide, and 4.2m long. The ama fits inside the waka. Would the boom clear it if it was on deck?

@@fossilfool thanks!

my understanding is that tanja sail is has parallel spars, although this is getting close to that

it can indeed go up wind, although like most multihull you go a lot faster if you bear off a bit. I'm gonna measure windward performance once I am a place without significant current

thanks!

yeah running aground wasn't officially in the lesson plan but should be!

Yes I have a yuloh on my other boat (the raven 26) hmm I guess now that I do not have a raised solar arch I could fit it on this boat, but I'm more inclined towards a R2AK style pedal drive behind the crossbeam, next to this electric motor.

@@dominictarrsailing That's really cool, reminds me of the pedal boats I loved to use when I was a kid. Looks more efficient than a yuloh too.

thanks I made that netting myself by sewing webbing strapping together. It actually didn't turn out as well as I hoped, it's a bit too saggy. I'm looking to replace it with something I can get tighter

@@dominictarrsailing I wonder if you had sewn it at a diagonal instead, would that maybe have allowed it to tighten? I think of pulling a square by its corners instead of its sides...

@@zackariasthepirate oh interesting suggestion. hmm, maybe it would have but it certainly would have made it much more difficult to construct because now the pieces are not all the same length. I think it would have been better to make a rigid frame and then weave the webbing through it without cutting it, but then it might be difficult to pack down. hmm.

@@dominictarrsailing It's all an experiment and I love to see all the trials on all this.

Virb Edit

Well the hull is pretty wide and flat (40cm wide) I think I am getting some planing effect when going fast. I think the trouble with a square sail, with halyard in the middle is to sail across or up wind you need the halyard attachment point to be forward so that there is more tension in the luff, especially so that the front of the sail doesn't back (as you see in the first sailing session) maybe you could have a way to slide the attachment point? but then it might work out simpler overall just to have a designated luff

I have to admit that oz goose looks extremely impressive and sails way faster than you think it would! You can put a proa on the roof but it's never gonna be as fast to set up as an oz goose would be. There is a lot of rigging and lashing vs put unstayed mast in a hole. A proa is gonna require a lot of tinkering, especially if you cobble it together from other boats, so you need to have time for that and also really I think you need to live by the water and can leave it set up. I only pack down the proa before a passage, if I had to put it on the roof of a car, then set it up, then go sailing, then dissasemble it then back on the roof etc... you'd probably spend more time un/packing it than sailing. I would definitely recommend using proper marine ply, for one it has much better surface finish than exterior hardware store ply, and anyway, the epoxy is so expensive you might as well use the good plywood too

Thank you! I'm still just learning it so it's too soon to say whether I like it better but it does have potential!

haha no I've never spent that much on a single sail!

I'm still figuring out the best thing to wear. my previous experience with wetsuits is they don't actually keep you very warm in the wind. might be okay for the legs? I have a woolen jumper under the raincoat and the foam lifejacket provides very good insulation from the wind

@@dominictarrsailingsee if you can pick up a used dry suit. Get a generous size.

@@markthomasson5077 oh i got one, but its a lot of hassel for just a quick sail

gopro which has gps built in, and then the gps data aligned with video. previously I have recorded the gps data on phone but it's a difficult to get it aligned with the video. Makes a big difference to see what is really going on!

Awesome! btw, there is a link to the drawings I made for it in the description of the build video

Hmm, It looks like Three Cheers is a trimaran. Cheers was an atlantic proa. But I've sailed several tacking proa and I think I prefer the pacific tack. Ama lifting (even if not flying) feeling like a very skinny monohull. I havn't actually sailed on a trimaran. Seems like it might have two bad tacks, but I'll reserve judgement until I've actually been on a good one!

@@dominictarrsailing You are correct, I got my "Cheers" confused and relied on memory. It was also a shunter. Im probably confusing it with the Berque brothers Micromegas 3. Never sailed one but looks like fun

@@skaraborgcraft oh yes! that is a very beautiful boat and impressive journey! that one is a tacking outrigger. I have built two tacking outriggers in the past. I think it's a pretty good format and easier to make than a shunter. Having sailed those I decided I like the pacific (ama up) tack better, so on a shunting proa I get two good tacks instead of one good and one bad.

no problem!

oh definitely! I think I recognize your boat from trademe, it looks interesting!

@@dominictarrsailing Ex Wahine lifeboat, then Outward Bounds work boat.

@@BalkanShipyards thanks Rael! Ive only sailed this rig less than 10 times so i am sure i will think of some improvements with a bit more practice. Yes i remember your bungees! I solved that problem a different way by shifting the stays back. When they where right on the end it would snag on the crabclaw but now this is a different sail...

I was just about to tag you Raoul! Keep shunting!

You're doing very well mate, and your editing is top class! Sort out what u can, test it reefed, I love the small CC concept... u may have the Proa that could rock the tube... The smaller the boat, the more the fun... Keep Shunting Balkan Shipyards

@@MdG-o2q hmm what format? I think a T foil with trailing wand on each end of waka and one on ama (taking place of the leeboard) they would need to be able to turn 180, so i think that would eliminate leading wand designs. Though, once we are flying could probably just tack, especially as we will be going so fast the apparent wind will always be well forward, and will be pretty much sheeted in hard with only slight adjustments

@@jonymanay the west coat. Ive come up that way 3 times now. Much easier to plan because its just a straight haul to cape reianga. Just need 4 or 5 days of steady westerlies, and prefurably not too crazy wind in between farewell spit and taranaki because that bit is gonna be rough anyway! The east coast is easy above east cape, but below that its actually quite trecherous, especially around waiarapa, and its not just a straight line, you have to go around several capes so unlikely to get a good wind the whole way!

So I did do a dinghy cruise in this boat, but sadly I lost the camera near the end of the trip so it didn't become a video. but it was a great trip. I did make some shorts during trip though. If you want a boat like this to be dry I think the main thing is you have to sail it slow. If you keep it under 5 knots you should be fine ;) maybe 7 knots is doable even? I think there is some design space to having things like splash deflectors but once you get near 10 knots that goes out the window as water just goes everywhere. Also, sailing downwind is quite a bit drier. In most of these videos I'm day sailing and will return in an hour or so, so I choose beam reaches or close reaches. But I did go cruising in it one time, and had a lot more down wind runs. Personally I think I find it more fun to sail fast and wet, but certainly staying warm and dry is the limiting factor.

haha thanks Rory!

@@alexforget my understanding is that many fast multihull use planing to some degree often having a flattish U shaped bottom. Even waka ama paddling boats do!

Some trimaran, for example weta trimaran, actually has quite a wide center hull which planes, with very narrow ama that are in displacement.

@@alexforget im definitely not gonna convert my pahi into a proa. Although it would be a fairly good hull shape for it if you found one with one wrecked hull or found an unfinished project with just one hull. Id much rather build a larger proa from scratch, but i think ill save a lot of time if i learn more from the small proa befor i seriously consider building a larger one.

@@nautikarl i use virb edit, after extracting the gpx file from the gopro footage using goprotelemetryextractor.com/free/ its a bit clumsy. Gopro has its own telemetry overlay stuff but it doesnt show knots, which is unacceptable!

Good Show ! Brave for Midwinter ! More Videos Please !​@@dominictarrsailing

@@michaelknuckey4405 haha, the thermals helped a lot, even wet, much warmer than the wind blowing on wet bare legs! and not staying out too long. Oh and the foam life jacket is very good insulation too!

@@russellsmith8609 yeah still quite a few things to try!

certainly! ;) but it's much easier and faster to test out new sail ideas on a smaller boat!!!

haha. I'm am a tarp purist. I wanna make the worlds fastest polytarp

Yes I've been watching a few videos about dipping lugs! Phil Bolger thought they were the most rig for the least rigging too. I like to have good light air performance and it really does seem like a pretty easy way to get a massive sail area, and not as badly behaved as a spinnaker. I also love the story about luggers outrunning the revenue service!

"Luggers outrun the Revenus Cutters " by being able to point higher !

@@michaelknuckey4405 I love that story. dipping lug is very uncluttered. unstayed mast with just the halyard set to windward. What was the revenue cutter? trying to figure that out... gaff rig with 2 square sails, massive bow sprit, several split headsails and loads of rigging? I wouldn't really be surprised if that couldn't sail as high. dipping lug looks like it could be balanced for any point of sail too and would be great off the wind (no spinnaker needed) without too much weather helm if you take the tack line over