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PAOLO LODIGIANI’S TEN FOOTERS 17 ZEN POLLY JUNIOR SCHEGGIA

Let us now consider these four Ten-footers wind, these boats are very difficult to handle which have a common (stitch and glue) and become a little easier with medium or method of construction and a chine hull. It is regular winds, provided that the helmsman has perhaps necessary to explain why there are acrobatic qualities. With strong and irregular four projects on this theme. Firstly, the winds a plunge into the water is assured. opportunity to develop them was given by the However, when they are standing up, these fact that in the last few years or so, we have boats, which are practically without been organizing a design and construction amas (the class does not admit multi-hulls), are - usually in spring, having a Ten-footer extremely fast. By applying the same criteria as object in mind. The course is practical, in to the Ten-footer class, it would be easy to the sense that it leads to the construction of one design a winning boat; unfortunately, for the or two boats and is an opportunity to moment there is nobody in the class able to experiment new models which will be tried out make it win. If there were one, presumably, he during the and racing season. This has would use his talent to excel in other classes lead to a collection of projects that has with greater prestige or which are more continuously been enriched with "new entries" challenging from the technical point of view. and which will probably go on in the future. Following this premise, we shall illustrate very Apart from this explanation, we firmly believe briefly what is the most suitable criteria in in affording our clients the possibility to choosing between the four boats: the choose a Ten-footer from a vast choice, in fundamental elements of difference between order to meet their special requirements. It is, these boats and the most important criteria of in fact, difficult to say which is in absolute the choice are the number of chines and beam, best Ten-footer, while it is easier for each both on the water line and on deck. The helmsman to decide what is more to his favour number of chines leads to a first obvious or liking. It does not necessarily represent the consequence: more chines means more strakes fastest Ten-footer, for two reasons: in the first to be cut and stitched and, consequently, more place, one does not buy a Ten-footer to win a work. Apart from this, one has to consider that regatta; quite often the scope is to use it for the plywood method of construction and even touristic reasons and so one can do without more so, the "stitch and glue" method, are extreme performance in order to privilege better suited for boats with flat bottoms. The V other aspects such as comfort, stability and type does not represent particular cheapness. Secondly, even if one's aim is to do insurmountable difficulties for the constructor, well in a regatta, it is not sufficient to have a but only a little care and some work, fast boat, it is also necessary for the helmsman above all to obtain a perfectly faired keel line. to be able to use his boat properly. To simplify On the contrary, a larger number of chines this concept, it is sufficient to examine the offers a few more positive advantages from the evolution of a similar class to the Ten-footer as structural point of view, as the chine is covered far as dimensions and rating rules are with fibreglass reinforcement. It allows the use concerned, but very different as for of plywood with lower thickness, thus competitive spirit and level of participants. reducing the weight of the hull. From the The Moth class, which is not so widespread in hydrodynamic point of view a high number of Italy, but particularly common in the United chines generally allows you to create hulls States and in many European states. The class comparable to round ones and so, with less allows complete freedom of choice for the wetted surface: this consideration is correct but hull, setting limits only for the . The result quite theoretical because, when you take into has led to a number of small "monsters", consideration a Ten-footer hull, you have to generally made in composite material, consider that it is quite easy, by moving the extremely narrow (less than 50 cm at weight on board (trimming or heeling the waterline) which - on being placed into the boat), to change the shape of the hull in order water - tend to capsize immediately. With little to optimize the characteristics, according to the 18 PAOLO LODIGIANI’S TEN FOOTERS ZEN

hull FLAT BOTTOM length OA m 2,98 PLANS ONE CHINE deck beam m 0,95 n° 8 sheets A3 MARCONI WL beam m 0,74 - building construction method STITCH AND GLUE displacement kg 36 instructions skills requested NO EXPERIENCE sail araea m2 7,56 - material list PAOLO LODIGIANI’S TEN FOOTERS 19 ZEN POLLY JUNIOR SCHEGGIA existing sailing conditions. A V shaped hull initial stability, but having very flared will sail better in a horizontal position while broadsides, stability increases considerably, as with a flat bottom, it is more convenient to heel we have already said, when the boat starts to the boat (notice how the children in heel. It should behave well even with strong heel the boat windward when sailing down winds and be more tolerant - compared to the wind). The width of the boat at waterline is - previous ones - in case of wrong manoeuvres; once the length and displacement has been obviously, to gain the best performance, it is established - the most important factor as far as convenient to maintain it horizontal because, performance is concerned: a narrow boat will as soon as it heels, the hull becomes much always sail faster than a wider one. Obviously, wider and increases resistance. The POLLY is this will lead to lower stability and less more stable and smoother of the three other comfort on board. The beam is important boats and is suitable for any helmsman, but because it allows the crew the possibility to may obtain (with the same sail surface), a lean further out with its weight, thus slightly lower performance. The different contrasting the heeling moment caused by the characteristics of the hulls that have been just wind. With strong winds it will be more illustrated, also explain the different solutions advantageous to have a wider boat. While the adopted as far as sail plans are concerned. For beam deck is fixed, waterline beam may vary the ZEN and JUNIOR, the two most unstable when the boat starts to heel. For example, it is boats, we have adopted the simplest type, the sufficient to observe the ZEN midsection to catboat, because it does not require a large sail understand that it diminishes when the boat surface. The POLLY is suitable for two types heels by around 15 degrees. The boat thus of sail: type with main sail and , becomes less stable. The opposite occurs in the suitable for use by two people or for a single SCHEGGIA, which is rather unstable when it crew regatta, or catboat, which is more is flat, but stability increases immediately advisable for those who wish to use the boat when the very flared broadsides enter the more restfully and who do not wish to take part water. Once these basic hydrostatic concepts in a competition. The SCHEGGIA, that is have been acquired, it will not be difficult for above all used for competitions, has a sloop the reader to have an idea of how these Ten- with main sail and jib which allows it to utilize footers tend to behave. In summary, we may nearly all the sail surface permitted by rating say that none of these boats are particularly rules, with greater performance, above all extreme or acrobatic, but all four of them have when sailing close to the wind. From the been designed so as to be competitive. We construction point of view the boats do not have adopted the simplest sail plan, the present particular difficulties and thanks to the catboat, because it is simpler to manoeuvre and "stitch and glue" system, they may be built in allows the helmsman to concentrate on boat quite a short time: of simple construction we trim and also because it may be mounted with have the ZEN, followed (according to growing light and strong windsurf masts, that may be difficulty) by the JUNIOR, POLLY and easily found on the market. Within this range SCHEGGIA. With the last three, we have of common characteristics, the ZEN is adopted the cockpit solution with self undoubtedly the narrowest of the group and emptying double bottom. Apart from the therefore the most unstable. It is therefore not functional advantages, this system allows you the right boat for a beginner but in the hands of to accelerate construction times. The cockpit is a good helmsman, it may be undoubtedly fast; practically prefabricated and applied in the even the JUNIOR is quite narrow and hull, which allows "quick and dirty" operations therefore relatively unstable; these inside the hull, (for example leaving taping of characteristics make them less easy to handle the chines unfinished) thus avoiding long, with unstable wind conditions, as well as harmful and tiresome operations. strong winds. The SCHEGGIA is narrow at waterline and therefore does not have great 20 PAOLO LODIGIANI’S TEN FOOTERS POLLY

hull FLAT BOTTOM length OA m 2,93 PLANS THREE CHINES deck beam m 1,30 n° 9 sheets A3 sail plan MARCONI CATBOAT displacement kg 43 - building construction method STITCH AND GLUE sail area m2 5,80 instructions skills requested NO EXPERIENCE - material list 22 PAOLO LODIGIANI’S TEN FOOTERS

JUNIOR

hull V BOTTOM length OA m 2,90 PLANS ONE CHINE deck beam m 1,25 n° 8 sheetsA3 sail plan MARCONI CATBOAT displacement kg 38 - building construction method STITCH AND GLUE sail area m2 7,56 instructions skills requested NO EXPERIENCE - material list PAOLO LODIGIANI’S TEN FOOTERS 23 SCHEGGIA

hull V BOTTOM length OA m 3,02 PLANS TWO CHINES deck beam m 1,38 n° 9 sheets A3 sail plan MARCONI SLOOP displacement kg 36 - building construction method STITCH AND GLUE saila area instructions skills requested NO EXPERIENCE main sail m2 5,70 - material list jib m2 2,00