Yrvind: small boat designer, constructur, sailor and writer


As part for my search for safe cruising I now while building the boat take every opportunity to upgrade my knotsystem. I read books and I apply new knowledge when I need to do a knot. In that way I hope to be a better seeman when I start my voyage.
Knots are based on friction. No friction no knots. Fortunately friction increases exponentially. For example if you take a round turn around a pillar it may reduce the load on a rope by 90 %. If there is a 1000 kilo load it will be reduced to 100 kilos. A second round turn reduces it by another 90 % down to 10 kilos, a third turn and there is only 1 kilo left. Thats the explanation for how sailors with the help of pillars and winches can control huge forces.

Below is a hitch a bend and a loop I use. They all take me a few seconds longer to make, but if a knot is worth doing its worth doing well I reason.

When I attach a rope I use backturns or a tug boat hitch. Such a knot can always be undone even if there is a huge load on it. I use one two or three backturns. Not only do the backturns progressly reduce the force, they also spread it out over a bigger surface thereby reducing friction. the pictures below show a hitch with one backturn.

Instead of sheet bend and bowline I now use a zeppelin bend and as every bend can be transformed into a loop I figured out a different way to tie the knot so that I can use it as either loop or bend. The pictures below show the Yrvind way.


1990 I was given two hours on the Swedish National Radio on a popular program called "Sommar sommar" to talk about what I liked and to play my favorite music. Unfortunately due to copyright reasons the music can not be included here. But my voice is here to listen to. Just click on them and you will here my voice.

Part 1

Part 2


Sunday the 28 of June 2008 I was in Hunnebostrand on the Swedish West Coast to great a young man to his sucesful singlehanded crossing of the Atlantic Ocean. A year earlier he then 19 years old, and a friend of his had visited me to get some advice for a voyage in a Vega a 27 feet production boat. When his friend dropped out I offered to crew for him to get him started. He had not been away from his family for more than a few days and never done any night sailing.
He adapted quickly and when we were half way to the US to visit my friend Matt Layden he asked me if I thought he could do a single handed passage. I said yes and after leaving him in Florida he sailed back by himself becoming the youngest Swedish singlehanded sailor.

Photo BohuslÀningen

We had a very short time to prepare the boat.

Here I arrive with a new rudder. I did not mind being a deckhand as long as I had my own rudder.

In the beginning of September we left Norway to cross the North Sea. We had a cold stormy passage with a leaking boat. Everything became wet. We crossed Scotland in the Forth Clyde Canal, then sailed down the Irish Sea to Kinsale.

This was our last stopp before Florida 4000 miles away. The boat was already full with food when I told the Captain that we needed plenty of fruit. He looks worried.

South of the Bay of Biscay the weather turned fine and we did take a swim every day.

Here I am in the water.

This was our route. It took us 56 days from Kinsale Irland to Forth Pierce Florida.

Matt and Karen took good care of us. Here Matt is showing his Enigma with her chinerunner.

I thank Thomas Grahn my Capten and leave for Sweden to build my own boat.