Under construction
The Sail I had to Beat! This is the "Draksegel", in Swedish, translation Kite Sail, developed around 1904. Contemporary with the Wright Brothers' worlds first motorized air plane flight.
The sailor creates a lot of air resistance as he is exposed to the relative wind which can be very fast, in the order of 32 knots, 16 m/s.
My first wing. Photo Jan. 1973. Putting the sailor in a wing, open at the back here, eliminates the aerodynamic drag of the sailor. The first stand inside wing I built was made of two sheets of plywood, some 1.5 m, 5 feet, square, joined at the front with hinges. The front slot was covered with a strip of curved plastic. My performance calculations showed that it should be capable of sailing 70 km/h (45 mph) in a light wind. But there was probably at least a decimal error in the calculations as in reality it didn't go fast. One reason, I know now, was that with that thin and short profile it was impossible to get to the "quarter cord from the leading edge". You must stand there for wing to balance as the wind force is located there.
My second wing. Photo March 1974. This wing I made of cloth and ribs of aluminum tubing and with a steerable stabilizer. After plenty of sailing, testing and development it beat the best traditional sailors at its best moments.
It looks flimsy here, twisted? Windows certainly on the small side.
The third wing, 1975, was clearly faster than the traditional skate sails at the first try. Here the top is reefed down, in light air the wing was taller. The sail had a stabilizer for safety reasons. Now the stand inside wing skate sails race in an unlimited class of their own.
When I competed in the Swedish national championships 1976 with this wing I did not win the first race because at the start there was rough ice with plenty of resistance and I could not get going until on the smoother ice. (One sailor broke his foot in the rought ice. The course was very badly layed!) Then I won the second and last race with a wide margin.
A real shake-up for a sport that had not seen any substantial development for 70 years.
During the years when Anders Ansar developed the wing sail the by-laws of The Swedish Skate Sailing Association, funded by taxpayer money, stipulated that it should promote Development and Propagation of skate sailing in Sweden.
One would assume that the Swedish Skate Sailing Ass., which was using a sail type, Drakseglet 1904, that was contemporary with the Wright Brother's world's first motorized flight 1903, would be seriously embarrased when the related art of flying developed tremendously, e.g. gliders having a glide ratio of 1:50, and would be over joyous when someone finally put some aerodynamics into the sport.
Up to then there were no limits on equipment: "Sail and skates of any design." But to the following year the Association changed the rules, so as they saw it, they would exclude Anders and others to compete with these wing sails.
It seems that the Ass. treated this new design as a great problem which they did their best to get rid of.
The effort of this successful development, time and money, became a case of Casting Pearls for the Swine!
A more decent approach had been to give the older sails a handicap, especially as the purpuse of the Swedish Skate Sailing Ass. was to "Develop and Spread Skate Sailing in Sweden."
Further development, wings with stiff leading front. Photo 1977 Jan. From cloth wings I went to wings with a stiff forward part followed by cloth and that is the type of wings used now. I have built over twenty-five skate sails so far, some twenty of them stand inside wing sails.
A couple of tries has been made by others to make an "all stiff wing" but none of them as been successful so far, 2018.
Apart from the mentioned Development (a stated purpose of the Ass.) Anders also contributed to skate sailing Propagation (a stated purpose of the Ass.) by producing and making available Building and Sailing Instructions as well as kits. The design and its method of building was/is such that it could be built in the drawing room as there was no need for e.g. welding and reinforced plastic work. And I could be built with basic tools. Around 100 wing sails have been built, most of them in Sweden. To the Propagation of skate sailing a contributing factor was also that Anders wrote and got published articles about wing skate sailing in Sweden and abroad.
Anders Ansar participated at the Swedish Championship at Västerås 1978 with a wing sail similar to the "S1" shown just above. He finished the two races but was not entered in the results. Totally incorrect! The correct procedure would have been to see if some one filed a protest against Anders equipment, followed by a hearing at a protest committee, which then would decide if his wing sail "Enclosed", (swedish: innesluta, t. ex. i en burk med lock.) him or not, which it didn't as it was open in the top and bottom. Had this decision gone against Anders he could have asked for a decision higher up in the National Swedish Sports Association.
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Modified Aug. 2021
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