I’m a high school student in  South Korea. My school, Hyundai Senior High School, was established in 1985 by  the late President Jung, the founder of Hyundai Motors Company. It is one of  the best private schools in Seoul and we have a very special crew called “FETS” which stands for the expression, “From Earth to Sky.” It was created in 1992  and many machines, such as a man-powered-submarine and an eco-mileage-car, were  made in the last twenty years. We also have several old FRP yachts. They are  big enough to carry three or four students, but they are very hard to carry.  Looking through Duckworks Magazine, some other students and I found out one  person mini-yacht: Queen Mab and Stella. 
            
   
            I contacted the designer of Stella, Christer Bystrom, and  thanks to his kindness, he sent me the plans for Stella. We chose the smallest  one, Stella 73. We loved her easy-to-make side plank, tiny body, and  computerized plan, but we wanted to make an offset centerboard in order to move  our legs freely when in the water. Since I couldn’t make contact with Phil  Bolger and Friends Inc. at that time - it was about August - we had to use only  Queen Mab’s picture in Duckworks Magazine website. 
            
We bought two sheets of 2400*1200*4mm plywood and one sheet of  2400*1200*7.5mm-plywood. At first, we made the body just as the plan said. It  was very hard to back the backbone straight and attaching the planks without  making big space between them was also not easy. 
Later, a much more important operation emerged. We had to match  Queen Mab’s centerboard case to HD24’s  body. While looking at the pictures, we made a hole at the bottom of the right  side. Fortunately we were able to put the centerboard case from Stella’s plan into the right side without any modification. We  fastened it with screws initially, and filled the gaps with epoxy to prevent  water coming in. 
The centerboard was just like a simple wooden plate. We cut  the thick plywood into shape and just spread varnish on it. We put fiber-glass  on all sides of the body to strengthen and waterproof it, but later we found  out that this work had made her much heavier. 
For the mast, we used some pine timber which had been in our  garage for twenty years. We put three pieces together and glued them with epoxy.  The combination of the three parts was way stronger and it was less likely to  be bent. The gaff and boom were made in a similar way. 
Our HD24 looked almost finished, even in this early stage,  but much more hard work was waiting for us. 
Actually, yacht sailing isn’t a very  popular hobby here in Korea and the term “yacht” is often considered as the expensive motor yacht and a symbol  of extravagancy. Thus, there are few yacht builders here. That’s why our  project was very meaningful: the project of building Korea’s  first one-person-sailing yacht. 
Next, we had to mount the rudder. It was made long before  with Larch plywood from Brazil (referred as 2400*1200*7.5mm-plywood above).  What we had to do is to attach the rudder to the body of HD24. It wasn’t that  easy. We bent the stainless steel to an Ω(omega) shape and  made the opposite part in a T shape by welding two pieces. We really wanted to  buy factory-made parts, but there was no choice because of the lack of demand  and supply of yacht parts in the Korean market. The shape wasn’t perfect, but  we were happy to see the rudder working well after it was attached. 
Meanwhile, we approximated the size of the sail using only the  boom, gaff, mast and a friends’ hands. With that  approximate measurement, I went to the biggest textile market in Seoul:  Dong-dae-mun market which is located at the east gate of medieval Seoul. I told  the seller the size of the sail and I chose the material with which he would  make the sail. When the tailoring was finished I brought it to the school to  check and see if it fit. Since the size given to the tailor was calculated just by  approximate measurement, we found a few wrong sections. We marked those  sections and I took it back to the textile store. After that, the sail was  quite perfect. 
All parts being done, we brought HD24 to the Han River and  had an experimental sail. She sailed quite well but we found one small hole  which allowed water to come in. We reinforced that part and she was finally  done. 
We had a celebrating party with principal and vice principal  of our school on October 19th, 2011. It was really festive and all   students were really fascinated to see the sailboat made by their fellow  students. Still not satisfied, the ambitious members of FETS are planning a  second project. 
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