DESIGN & ARCHITECTURE -
30 août 2022
L'astuce de VPLP : Les coques asymétriques par Lars Reisberg
Lars Reisberg est l'un de nos concessionnaires Excess, mais aussi le rédacteur de son propre site web sur l’industrie nautique : No Frills Sailing.com. Dès qu'il a appris le lancement de l'Excess 14 et de ses coques asymétriques, il m'a contacté pour avoir plus d'informations sur le sujet.
Cette innovation découle du souhait de concevoir un bateau qui procure de réelles sensations de navigation, un catamaran agréable à naviguer et facile à manier. Notre clientèle cible est constituée de personnes venant du monde des monocoques et recherchant plus de confort sans perdre le plaisir et les sensations de la navigation.
Découvrez les avantages des coques asymétriques, les origines de cette idée et comment nous avons décidé de la mettre en œuvre. Pour en savoir plus sur les coques asymétriques, cliquez ici.
Merci Lars pour l'interview !
Hervé Piveteau.
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comments
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answers
Didn't Lock Crowther come up with much the same idea for the early Catanas like the 381 and 431?
Dear James, you are absolutly right ! The lines were ispired by genious Hobie Alter who designed the Hobie Cat 16 hulls with almost strait inner waterlines, and it did work ! In the mid 80' there were some tank testing comparison to try to measure the difference in drag and hull interference, but no significant number came out because the scale effect was difficult to take in account. At that time, the plugs to make the moulds of production catamarans were made out of cold moulded process, so that a single hull was produced, out of which the two outer hull moulds were built before the two half plateform were added to build the inner hull/platform moulds : this was much quicker and less expensive than building a complete plug. This resulted with the end of asymetrical hulls. But now that all plugs are milled, it seemed interesting to re evaluate the benefit of asymetrical hulls, and the first Lock Down allowed VPLP to spend 3 months of hull shape comparision, leading to a proven benefit for asymetrical hulls ! All the best !
Dear M Belmont, many thanks for your full and interesting reply.
