Horizon 47: Plating, Fairing and Sanding - The Aluminium Hull Takes Shape
After assembling the sailboat's structure on a table, as described in our previous article, Horizon 47 completed several key stages in its manufacture. At the Condé-en-Normandie site, the hull of the very first model is now taking shape, the result of precision work and passion.
Plating: assembling the aluminium hull casing
Once the bow, frames, and stringers have been assembled to form the impressive structure of the boat, it is time for the plating stage. This involves gradually adjusting, positioning, and welding the preformed aluminum sheets onto the "frame." Each sheet is spot-welded, checked, and then continuously welded, ensuring both the precision of the shapes and the robustness of the whole structure.
This gradual work gives shape to the sailboat. It requires perfect mastery of the thermal and structural constraints associated with welding, to ensure strict compliance with the architect's hull design. Horizon 47 thus takes shape, plate by plate, revealing the smooth and powerful lines of its hull, the historic signatureAllures Yachting.
The Precision of Fairing
The next phase is equally emblematic of the shipyard's expertise and that of its teams: straightening. This involves correcting very slight deformations that appear on the hull after welding and assembling the metal sheets and structures. The heat from welding can cause material shrinkage, warping, dents, or bumps. Straightening therefore aims to restore the geometry specified in the plan. Through visual inspection and the use of templates, the boilermaker performs the straightening using wedges and counterforms, as well as controlled blows with a flat hammer.
Beyond the aesthetic aspect, this step also contributes to the performance of the future sailboat: a perfectly straightened hull, without irregularities, offers better gliding and reduces drag.
Sanding: revealing the material, enhancing the shape
Next comes the sanding of the aluminum, particularly the welded areas, which is both a technical and aesthetic step. It visually unifies the hull and removes any construction marks. Each area is carefully worked on to preserve the purity of the curves and highlight the Allures signature: beautifully shaped hulls that are pleasing to the eye and gentle on the sea.
This demanding and patient craftsmanship reflects all the expertise of the shipyard's boilermakers.
The Turning of the hull
Once sanding is complete, the hull is turned over. This operation, carried out with precision by the shipyard teams, is a key moment in the construction process. Lifted and then tilted using specialized equipment, the hull leaves its initial position to reveal its full volume and allow work to continue.
Beyond its spectacular nature, this turnaround marks a turning point in construction, paving the way for the next stages of manufacturing.
Next step: cutting out the bulwarks. These openings, made with precision, prepare for the next phases of construction. Follow the birth of Horizon 47 step by step subscribing to the newsletter.
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