sections at the level of the midship section of the vessels found in Hjörtspring (third century BC. C.), Nydam (300 AD ), Oseberg (800 AD) and Gokstad (900 AD).
tinglanillo The system, which involves the construction of the planks of the ship-based courses (rows of tables) overlay, otherwise than in the Mediterranean system, in which the courses are spliced \u200b\u200bby the tops and edges - came to perfection thanks to the Vikings. On the boat found in Hjörtspring, the third century BC, one can observe a pre-tinglanillo structure. This framework was made of linden wood tables with wicker weave sewn and tied to a nascent and light frames. It had a rudimentary keel, specially designed to be dragged through the sand, and the structure was completed with 10 benches were set on pillars. It was a light boat designed for coastal assault. The Nydam ship (300 AD) the planking consisted of five rows on each side, and the keel was built by a single table-shaped cross section T, this type of construction can be considered as the basis on which developed the technique Nordic tinglanillo; provided very solid structures with a high resistance to grief, allowing these vessels sailors face challenges in ocean shipping. The peak period of development came in the ninth and tenth centuries, as evidenced by archaeological finds from Oseberg and Gokstad, in which there were two ships assigned to the years 800 and 900 respectively, which served as the tomb of their respective owners. They are two very deferential vessels, confirming the existence of the large number of different models that were manufactured in Scandinavia, not only in size but also in structure and design. Experts have concluded that the Oseberg ship is a Karfi or Karve, a type of ship that can be considered the first pleasure boat history, suitable for sailing in the sheltered waters of the fjords, but not to venture offshore. Aloft showed that the candle problem was not solved yet: the club was located in a small ink as a cockpit, seated on the two central ribs and subject to another suit thinner, this stick was broken and had been repaired with iron clamps. A careful analysis of the rig makes clear the impossibility of a structure such as the Oseberg ship's masts were able to sustain the tensions caused by the canopy. Development of sailing took place at the time of Odeberg boat or, at most, 50 to 100 years, this can be seen clearly in the boat found in Gokstad, showing a reliable solution to the problem of the rigging. In a few years, production grew ocean sailing. The Gokstad ship was built entirely in oak, and with 23 m in length, was greater than the Oseberg ship. The frame set features 16 courses and rivets out and caulked with tarred animal hair. The freeboard of 1.8 m, was also higher than that of Oseberg. The keel was a single piece of 17 m in length, and was slightly curved downwards, so that the corresponding area of \u200b\u200bgreater significance the midship. This was due to the need to reduce the breakdown, to increase buoyancy of the hull and to facilitate the turning and sensitivity of the rudder. End of the keel out pieces of wood that joins the stem to the stern. The stick, 12.2 m high, stand a square sail and lay in a cockpit of a single piece of oak, bound to the four central frames. Fixation of the rigging took into account the compression and lateral forces.
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