Friday, February 14, 2020

Sven Yrvind on Paradox Design - part 2 of 2

Matt used a lug sail that you could manually roll/furl around the boom. Because the boat was so small it could be easily rowed or sculled.

For Paradox Matt invented a very simple rig. A lug sail that could be furled around a boom with the help of a drum. Everything could be done from inside. He only used three lines to control the sail, a reefing line, a halyard and a sheet. There is a fourth line for controlling the rudder running inside on both sides of the boat.

Matt and me sailing Enigma, me under canopy. The drum for furling at the forward end of the boom.Me and Matt sailing Enigma. Detail the furling system.Close up of Matts furling gear. In Matts hands it works very well.

In 2005 built Enigma a small 3.6 (12’) sharpie weighing only 80 kilos (180 pounds). In March 2006 Matt sailed Enigma for 1200 miles around Florida in the Watertribe Ultimate Challenge race to finish first in her class and third overall.
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I wrote this on my blog May 17, 2008.

It was when I lived in a little Japanese fishing village, learning how to use their yuloh that they call “ro” (and which, by the way, I think is far superior to the Chinese) that I realized that the strong flat bottom they use for their traditional boats would also give the cruising man many advantages. It can take the ground without getting damaged. It gives a lot of initial stability. It gives greater interior floor space, and of course, it gives very shallow draft.
Later, back in Sweden, when I was brooding over the topic of draft, I remembered I had gotten two letters from America, one from Dave Bolduc and one from Mickie another friend. Both of them contained drawings of Matt Layden’s 14-foot coastal cruiser Paradox. Once more I got out the drawings and looked at them. Paradox has a strong flat bottom and a draft of only nine inches. At first look one gets the impression that she cannot go to windward as it seems that she has no means of preventing leeway. A closer look reveals her chinerunners, small two-inch wide horizontal winglets sticking out from the chines for about a third of the boat’s length. But was that enough? Intrigued, I phoned Dave. He had sailed with Matt for a winter in the Bahamas and confirmed that they worked very well. He gave me Matt’s phone number. I called Matt and he told me that he could sail Paradox better to windward than Dave in his slightly bigger centerboard boat, and he invited me over to see for myself. In October 1997, I sailed Paradox for a month.

I was very curious to see how well the chinerunners on Paradox worked so when Matt asked me where we should sail I said to windward. She certainly sailed as close to the wind as my boats, probably much better.

It certainly is one of the smartest inventions in the history of yachting, simple and cheap, easy to build and it does allow the boat to sail to windward in very shallow water.

Matt had confidence in me and let me use the boat whenever I liked. It was a rare opportunity to learn something special. I took full advantage of it and was out sailing everyday, in the weekends Matt came along.

In 2003 I returned, and again in 2006 and 2007. Each time I stayed for about a month, sailing and discussing boats with Matt. We continue to exchange ideas once a week over the phone, which is very enlightening, as Matt is always one step ahead of me. I am now convinced that the chinerunner concept, created by Matt in 1982, is the greatest innovation for small cruising boats in the last century. The reasons why very few people have realized its advantages are that Matt does not try make his voice heard above the din from the egos in our conservative, self-centered society to promote his idea, and that the principles behind it are complex and subtle, and have been subject to little research and experiment. After a decade studying Paradox, and talking to Matt I have come to understand that the boat’s leeway-resistance comes from a combination of three sources, the chinerunners, the lifting body shaped hull and the large rudder.
Unlike the ordinary cruising boat, Paradox has no heavy ballast keel making her stability obvious. Matt uses less obvious means, like her cruising load kept low and her flat bottom that, a bit like a multihull, moves a lot of buoyancy to lee at small angles of heel. At large angles of heel, Paradox’s righting moment comes from a good height-to-beam ratio and the buoyancy of her superstructure. This shape gives Paradox positive stability at up to 165 degrees of heel. Better than most conventional keel boats

YRVIND.COM 2008

Yrvind.com was a boat inspired by Matt’s chinerunner series. The idea with the name was that when passing ships saw it on their AIS-displays they would search the Internet and find out something about me and hopefully report me as I had no means of long range communication.

I have written about her elsewhere in this blog I only like to mention that besides being somewhat obsessed by broaching-to (besides shallow draft and a few other things). During a test sail in the Stockholm archipelago a friend gave me a tow back to port. As we came back to port he let go the towline instead of going straight Yrvind.com healed over and made a very sharp turn, like a broach-to. Matt says that this has never happened to him. It did not happened to me either, later spending two and a half months in the Atlantic sailing from Ireland to Martinique via Madeira.

As I have written in the Manifesto I now prefer a variable lateral area that is something like a centerboard or leeboard because sailing downwind that gives you one more way to control the boat. The disadvantage is the complication. Coastal sailing like Matt does chinerunners is fine.


Sven Yrvind - on Paradox Design part 1 of 2

PARADOX AND ENIGMA, SHALLOW DRAFT CRUISERS.

Shallow draft
I sail oceans, but a successful ocean passage cannot be concluded without a landfall. There are thousands; even millions of shallow water places were I could land with my ocean going shallow draft boats. Deep draft boats must go elsewhere. I do not like to do likewise and exclude these places from my cruising agenda because many of them are pleasant and peaceful and do not cost money. Sometimes these shallow water places may be the only choice – if you cannot enter you have to sail elsewhere – in extreme cases that elsewhere may be thousands of miles away.  Still not one ocean going boat in a thousand is small and has shallow draft.
Mostly racing is to blame for this sad fact. Racing optimizes windward performance. A deep draft boat sails better to windward than a shallow draft boat. People care more about being associated with fame than leading a rational life. Irrationally cruisers copy racers.
Prior to 1970 ocean racing in the US was done under CCA- rule (Cruising Club of America) in Europe the it was the RORC-rule (Royal Ocean Racing Club) In the US there had been many successful centerboard racers like Mitchell Carleton’s Finisterre designed by Sparkman & Stephens she was designed not as an all out racing yacht but as a reasonably comfortable, shallow draft cruising yacht for two persons. Three Bermuda Race wins in a row convinced the non-believers. The popularity of the type continued until the death of the CCA-rule and the introduction of the IOR rule (International Offshore Rule) that favored a completely different class of boats.
That the center boarders was banned had much to do with that Dick Carter’s ‘Red Rooster’ was the top scoring boat at the Admirals Cup of 1969, and overall winner of the Fastnet Race. She had a 2-ton drop keel, and retractable, transom hung rudder.
Clearly racing it is the racing rules that influence the design of cruisers.
Did the IOR-rule produce seaworthy boats? Definitely not, in 1979, a few years after its introduction the Fastnet racing fleet was hit by a storm that lead to yachting’s worst catastrophe, resulting in 18 fatalities. Emergency services, naval forces, and civilian vessels from around the west side of the English Channel were summoned to aid in what became the largest ever rescue operation in peace-time. This involved some 4,000 people including the entire Irish Naval Service’s fleet, lifeboats, commercial boats, and helicopters.
I do not build my boats to racing rules and neither should you because cruising is mostly done downwind and downwind a shallow draft boat is faster than a deep draft boat, and as mentioned above, boats with deep draft are very restricted as to where they can make their landfalls.
Thinking about of how racing makes cruisers have deep draft makes me angry.
Knudshoved 1968
The first time I realized that deep draft was a nuisance, was in Denmark 1968. I was sailing Anna with Martine a French girl. We had anchored up for the night before crossing over to Svendborg on the island of Funen. We were on our way to England. Anna was only 13 feet and we had no dingy so we decided to wade ashore. Anna’s draft was 75 cm annoyingly the water reached just to our crotches.
Tristan da Cuhna 1974
1974 I tried to round Cape Horn from east to west in a 20-footer I had built in my Mothers basement. She had earlier successfully dealt with storms near Iceland and west of Ireland, giving me a lot of confidence in her, but in the Southern Ocean, near Cape Horn, she was capsized, and a week later pitch-poled too. I promised to come back with a new design. I turned east, sailed with the prevailing westerlies for two months until I reached Tristan da Cuhna the world’s most isolated island. It did not have a harbor, but it did have a landing place. Bris, my boat was small and although not a real shallow drafter was shallow enough to be lifted out of the water and put on the beach. I stayed on the island for four months teaching mathematics. Bris was the first boat ever from the outside world to land on the island.
Falkland Islands 1980
I sailed Bris back to Sweden and built a 19-footer Aluminum-Bris for another attempt that was successful. Later, when I had returned to the South Atlantic and was cruising among the Falkland Islands, I discovered that when building her I had been so focused on Cape Horn’s deep, stormy waters that I had forgotten about the advantages of a shallow draft. The result was an unbalanced design. Although you would never catch a “Kelper,” (as the Falkland Islanders call themselves) admitting the islands are windswept, the fact is that there are no trees there, and during my four month stay, the wind speed reached one hundred knots on three occasions. As a consequence of not having a shallow draft, I had to anchor in exposed places. That gave me a hard time communicating with the shore in my inflatable. A flat-bottomed shallow draft boat capable of taking the ground and been pulled up on the beaches would have been ideal and made life so much easier.
Ocean going boats in general have deep draft. When I was young the grown ups indoctrinated me to believe that there was no other choice for an ocean going boat than deep draft and that deep draft was the only way to design a seaworthy boat. That is nonsense. It has taken me a long time to see the truth and unlearn the delusions of deep draft and to see the many superior properties of shallow draft. Matt Layden designs very interesting shallow draft boats.

Some of Matt’s boats

Paradox and Enigma are boats very cleverly designed and built by Matt Layden. Matt sails on the US east coast. The east coast has a lot of shallow water, as does indeed much of the rest of the world. Matt likes sailing in shallow water. Matt has built many small shallow draft cruisers some of them with chinerunners. 1985 he built Swamp Thing 4 meters long (13’ 2’’), 1.12 meters beam (3’ 8’’) that draw 18 cm (7 3/32 inches). 1993 he built Paradox 4.2 (13’ 9’’) meters long, 1,23 meters beam (4’) she draw 23 cm (9 1/16 inches).
Paradox draws 5 cm or 2” more than Swamp Thing. Most people would not notice the difference, Matt did. Many people think 1 meter or 3 feet 4 inches is shallow draft. I do not agree. For me a boat has shallow draft if she can float in water reaching not above your knee, that is 35 centimeter or about 1’ 2’’.

Sven Yrvind aka Lundgren, autobiography

SUSTAINABILITY: SIMPLE HABITS, SIMPLE BOAT

Sven Yrvind´s website
A NEW DECADE

Looking back 20, 40, 60 and 80 years.

Looking forward 20 years into the future.

80 years ago I lived on the windward side of a small island close to the North Sea. It was me, my mother, her mother and my grandmothers mother, my father a seaman had left us 15 of January 1940. In 1941 the English sunk his ship in Hong Kong. Good for the war they said. I never saw him again.

Nazi Germany invaded Denmark and Norway in April 1940. I was a one year old idealist and Sweden prepared for war. Our island and the waters around it were declared restricted military area. Only residents were permitted access. I saw few people during my childhood. Our house was situated within a stones throw from the sea on an insulated peninsula, far from the village. I played in the water and learned to handle small boats. I did not need toys. Eventually peace came and I was old enough for school. Being curious I had looked forward to be taught the wisdom of the grown ups but I was bitterly disappointed. School meant route learning. We had to learn by heart the names of rivers and towns. I was unable to do that. During the forties the official policy was harsh discipline. Teachers were encouraged to beat lazy children who did not do their homework. During the breaks my mates did their best to assist my teacher. I got beaten badly sometimes walking home with blood on my face. Despite the beating my homework did not improve. I was stubborn man. Born a stoic, raised by women I did not cry. I am sure though that had I been less proud and rebellious I would have been beaten less. After four years of that inhuman hell it was found out that I was dyslexic. My kind and loving mother was able to send me to a very nice and understanding boarding school with reform pedagogic. That was a real paradise.

60 years ago, an early February morning 1960, the doors of a maximum security prison opened and I was let out into a dark, cold street. What had I, a gentle, honest, curious, industrious, righteousness, young man done to be an inmate of an institution with such a bad reputation?

Not much, just being stubborn, more stubborn than ordinary persons. I had been conscripted, but within hours in the army, for no reason at all, my sergeant had taken a strong dislike to me. My early schooldays had thought not to give into grown ups that humiliated and treated me unfair. I resisted. Things escalated. I did not give in. Eventually the punishments increased until I was sent to prison. As I was clearly innocent, I had just been bullied; I saw no reason to repent. That infuriated the jailers. It gave the other prisoners something to laugh at. I was accused of stirring up a mutiny. Now it was the establishment against me. They decided to break me. I was transported me to a maximum security prison. There I immediately was put into solitary confinement and ordered to do stupid work. I refused. I was told that for every day I did not work an extra day would be added to the length of my punishment. I did not let that influence me. To me it was not hell sitting in a heated room. I was feed three times. I used the precious time to reflect on the wonders of life. Finally they sort of gave up on me. One day it knocked on the door. That was odd, as the jailers did no knocking. I nice woman a psychiatrist came in. She had a paper in her hand. She told me, a bit embarrassed, that I was causing a lot of problems but if I signed the paper that stated that I was a psychopath they would let me out and give me 25 dollar to start a new life. If not they would keep me forever. Of course I am not more of a psychopath than you, but I am probably more stubborn.

They kept their part of the deal, but I soon realized that the testimonial was useless and as things stood a bourgeois career was not for me. Instead I bought a rotten old boat and become Captain of my own ship. I soon realized that a new type of small cruising was desirable. I decided I was the to be the man to fix that. That was 60 years ago.

40 years ago 1980, still stubborn after many attempts of improving the state of small ocean going cruising boats I singlehandedly rounded Cape Horn. I was the first swede to do so Cape Horn. I did it east to west against the prevailing winds and currents. My boat was just 19 feet. No smaller boat had rounded the Horn before. It was 16 of June 1980. It was winter. It was cold and very dark. It was the time before GPS. My navigation was done solely by sextant and dead reckoning. The storms and the cold were difficult, but by far the most difficult part was the navigation. Astro navigation is only possible if you can see the celest objects. Because the frequently bad weather it was often so that many days passed without the possibility to get an observation. The days were short and the sun was seldom visible. At noon, in June, south of Cape Horn, the suns altitude is not higher than 11°, same as here in south Sweden today New Years Day. A GPS is a thousand times more accurate than a sextant at any time and it gives you your position instantly in any weather in at any time of the year. It was a hard but satisfying forty day offshore passage. It had showed me the passage with the most fearsome reputation and I had done it under the worst of circumstances. I was awarded the Royal Cruising Clubs Medal of Seamanship. The same medal had been given to Chichester, Knox-Johnston and Moitessier. That was 40 years ago.

20 years ago my rounding of Cape Horn had in the eyes of the public magically transformed me from a deplorable psychopath into an established and admired hero. I had written a book and become a sought after public speaker I had married a wonderful girl we had bought a piece of land and built a house on it and I was still experimenting with small boats still trying to improve small ocean going cruisers. The future looked bright and settled. Then just as I held the golden apple in my hand, a surprise came. Right under our house was the world’s largest stockpile of oil, 2,7 million cubic meters. It had been built in secret during the cold war. The idea was to fuel the coming war against the Soviet Union. 20 years ago the Soviet Union had been dissolved and our government did not know what to do with 2,7 million cubic meter of oil so they sold it to an oil company for the neat sum of one hundred dollars. The oil company was happy and decided to commercially exploit the stockpile. Unfortunately that meant that they had to build a plant right where our house was. Might is right. Employment wins over environment. The company started to build. Permission they would get later. They were creating hundreds of jobs. Good for the community.

My response was to get four TV-teams the national newspapers etc to my workshop. There I told them that there would be action at the refinery. We acted fast. With friends I let off 150 smoke bombs plus super big firecrackers in a protest. Panic aroused. In the confusion the refinery’s security personal called in the police to assist them to take care of the terrorists, but as the smoke began to clear they realized it was just me, the crazy trouble maker. The directors know that they had no permission for what they were doing, that they were doing something illegal. They definitely did not want the police involved. With the help of newly invented cell phone they got hold of the speeding police, told them that the alarm was a mistake, that everything was OK, that they would deal with it themselves. They asked the police to turn back and forget everything.

I was able to stop the project but to a price. A big oil company has much influence in a small community I was harassed I lost my wife and our house and mowed to the other side of Sweden. That was 20 years ago.

 Now we have the year 2020. I am 80 years old. I am still stubborn and still experimenting with small boats. In April, in just a few months, I have to hurry; a friend will trail my new boat Exlex to Dingle in Ireland. Exlex is 5.8 meters long 1.2 meters beam with a draft of 20 cm and an empty displacement of 0.6 tons.

By the way, Exlex is Latin for outlaw. Ex means out, Lex means law. It’s the European Union Recreational Craft Directive that has criminalized her. They do not want small boats; there is more money in bigger ones. That they cause more pollution and give less happiness to their crews is the price we pay for growth and more GNP.

My plan is to test sail her the 1200 miles to Porto Santo Madeira. If I can keep an average speed of 3 knots it will take 17 days. Year 2018, with a boat 4 cm shorter, that same passage took me 40 days. I do not always get everything right. Is this new improved boat that much faster? Time will tell. Based on this trial I will in Porto Santo provision Exlex for a much longer passage. The ultimate destination is Dunedin NZ about 13400 miles and 186 days distant. I intend to sail south of Africa, Australia and NZ. Will I make it? I do not now. A less stubborn person will definitely not make it. The boat is on the small side for such an long passage. Will I be able to carry enough food and on my small boat? Hopefully, because I have trained myself, for two years, to eat only once a day. And water? On previous voyages I have drunk one liter water a day so I will carry 200 liters. Watermakers are too expensive and too unreliable even if I carried several. The original idea was to make a landfall in Western Australia. For that I needed a visa. However I got angry when I was advised sort it out with phone calls to Australia. I like to spend the little money I have on food not on long distance calls. The visa problem is stupid. They have an embassy here in Sweden and they must surely have computers and e-mail in Australia – why do they make things difficult for me?

 In 2040 I be 100 years old. I have never smoked, not even one cigarette. I have never drunk not even one bear. I use my body and I use my brain that favors my sustainability. Hopefully people will get the idea that simple habits, small boats favors our worlds sustainability and everyone’s happiness. Big boats – big problems. Small boats – small problems.



Simple habits     Simple boat    Simply –

POSTED ONDECEMBER 23, 2019