Crazy_Proa project, Shunting out of narrow creek in light and shifty winds

I added two speed sheeting system and boom limiter(pusher) to prevent it to go up while shunting or going downwind. Things work much smoother now...

[@BalkanShipyards]

Great Vid man, best Shunting I seen on the tube!!! Amazing! First time I see the advantage of Aft CE on shunter. My rig carries CE ahead of mid ship, yours Aft. I must go off the wind, sail on a beam reach, some times slow, sometimes I may almost stop, now I shunt and move my rig to my new bow, boat heads up and off I go, sailing to windward.... Your boat turns around it's sail, like a wind vane, Amazing!! I lose distance sailing towards a hazard on a beam reach, you shunt like a tacker losing nothing! turning the vessel around your sail, Well Done!!! Keep Shunting Bro, Balkan Shipyards

[@VladimirUD]

Thanks, man. That was the idea. I always thought that I can make a proa which would shunt without loosing forward momentum. I almost there. Thinking about building second proa which will shunt on a spot.

[@parallax_aerial_photography]

I've done this on a bigger proa and it's really not that much different than tacking once you get the hang of it. Sailing right up to the rocks and coming to a complete stop within a boat length and then shooting off in the other direction again is a unique experience

[@bobhauser3833]

Thanks I always wanted to see a video of a proa shunting up a narrow channel. Interesting that using both rudders worked so well, though it would take a bit of concentration to get it right.

[@blaircowan8586]

Short-shunting zen. This is inspiring. Thanks.

[@VladimirUD]

My pleasure!

[@dominictarrsailing]

looks like it's going great! I've never seen a proa with the rudders right on the very ends like that! wouldn't mind a close up view of how they work!

[@VladimirUD]

I’m planning to do walk around video with an explanation of all system as soon as I finish active “try, break and fix” phase.

[@pakde8002]

Totally get the name Crazy Proa. I like the lazy man's shunting style.

[@VladPK11]

Охренеть! Никогда не думал что он может и передом и задом. А разворачивается-то как почти на месте)).

[@olegkostrov7276]

Да Владимир может делать вещи!!!

[@suzannechance5876]

How clever is that! Interesting and wierd looking.

[@VladimirUD]

Doesn’t it look like a falling leaf? Beautiful. Thanks for watching!

[@eddyhenningsson3121]

Thank you, have an idea of how I want to build a Proa, this gave me an idea about the sail, great! 🙂

[@VladimirUD]

Grad to be of use! I just want to point out that the type of unirig I use will not work well on classic deep V asymmetric proa hull. I use adjustable-on-a-fly deep boards to bring the center of lateral resistance where I want it to be.

[@СяоМяо]

Обожаю сумасшедших конструкторов за оригинальность !

[@VladimirUD]

Обожаю сумасшедших комментаторов за безумные комментарии :)!

[@markthomasson5077]

Excellent…but did you also try tacking to compare. (If that is possible)

[@VladimirUD]

I have to problem to shunt out of any small place but it is slower than tacking. Kids outperform me on dinghies going out of the cove.

[@dominictarrsailing]

wow it really picks up speed when it gets out into the channel!

[@VladimirUD]

The boat is fast. I clocked 7 knots going upwind in 10 to 12 knots of wind.

[@dominictarrsailing]

@@VladimirUD what is the sail from?

[@VladimirUD]

@@dominictarrsailing Escape Playcat.

[@mrRhinoEkb]

There should be a significant force on a rudder, right? Center of lateral resistance is constant, but the sail force goes around the mast while you tacking 🤔

[@VladimirUD]

Light winds in the video. In normal windy conditions I can adjust center of lateral resistance by locking front rudder, it becomes bow daggerboard and raising it about 2/3 up. So basically I always can shift center of lateral resistance anywhere I want(or need) by raising or lowering boards. I actually can steer the boat with both rudders locked and by just raising and lowering the front one just a bit.

[@mrRhinoEkb]

@@VladimirUD you good!

[@felixnic8360]

С интересом наблюдаю за проетом..Вы не задумывались о том , чтобы продвигать данную модель? Так как продвигают холпуни?

[@VladimirUD]

Да проект не завершен. Нужно построить новый аутригер. У меня есть идеи, как сделать управление еще проще, собираюсь построить вторую проа, в которой думаю воплотить новые идеи. Вообщем, нет, планов продвигать проект нет. Проа - это поиск, каждый должен пройти своим путем :)

[@marcelrothlisberger9822]

well done! did you use the rudders or was it just sail position? it‘s impressive either way, i‘m just curious about the design and possibilities

[@VladimirUD]

There are rudders on bows. I can steer with both in light conditions. However normally front rudder locks and becomes a daggerboard. I can lift or lower boards remotely from about anywhere on the boat to adjust lateral resistance. So as long as I’m on a straight course, handling of the Crazy_Proa isn’t any different than any performance boat, I steer with rear rudder. While shunting I can swing the boat around on a spot steering with both rudders.

[@marcelrothlisberger9822]

very interesting design, thanks for video and info

[@markthomasson5077]

@@VladimirUDis there also a centreboard. I am surprised you need any forward rudder acting as a centre board at all with the sail pressure aft.

[@markthomasson5077]

..sure shows up all those folk obsessed with traditional proas how to do it. (Though they have their place)

[@markthomasson5077]

She does seem to point remarkably high.

[@fernandocipriani2896]

Handsome! What are the specifications? Length, weight, sail area? Cheers!

[@VladimirUD]

Main hull 18 ft. Outrigger 8 ft. Width 8.2?(I need to measure, I was reducing it from the original build) Weight is under 175 lbs. I need to weight it but I built it to 140 lbs and now I slowly adding weight with all the reinforcements, Sail area 130 sq ft sail plus mast. Mast is 23 ft. Draft with boards up is 5 inches. Draft with boards down 3 ft.

[@fernandocipriani2896]

@@VladimirUD Thank you very much! It's a great project!

[@keithb6717]

@@VladimirUD Can we get the measurements in cubits?