Web series / Building a Sailing Speed Record Craft: Understanding Materials


The SP80 challenge, in search of the absolute speed record in navigation, propelled by the wind, begins the construction of its prototype. He takes this opportunity to start a series of didactic videos in French, with English subtitles, simple and understandable. In this first episode, he talks about materials and carbon boats.

A machine to beat the speed record on water

To go as fast as possible on the water using no other energy than the wind. The quest is old, but it motivates many energies at the moment. Among them, the SP80 project. Carried by a Swiss company, supported by students from the Ecole Polytechnique Fédérale de Lausanne (EPFL), it combines a streamlined nacelle supported by two skids and a unique foil. The machine, sailing at the level of the water, is propelled by a large kite. The kite should allow him to exceed the current speed record on the water, 65.45 knots in 2012 with Sail Rocket 2 and reach 80 knots.

Explaining the making of the "boat": a first episode on materials

Such a project mobilizes many technologies that not everyone masters. In order to share the project with all maritime enthusiasts, but also with novices, the SP80 team has started a series of popularization videos that will be distilled throughout the construction of the prototype until its launch in summer 2022. In this first episode, a design manager explains the choice of carbon as a material and explains in pictures and simple words its mechanical characteristics and its implementation. Unidirectional, 0/90 degree fabric, prepregs... Discover in a few pictures their meaning and their interest in the construction of record-breaking machines, but also of pleasure boats. The composites of your boats are not so far from it!

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