Greenscow 40: An eco-designed Class40 for round-the-world voyages

Greenscow 40

Kaori Concept and naval architect Gildas Plessis have teamed up to launch a 40-foot sailboat that meets both the specifications of the Class40 round-the-world race, the Globe 40, and high environmental objectives, all with a modern hull.

A 40-footer built for round-the-world voyages

Partners for several years now, the Kaori Concept shipyard and naval architect Gildas Plessis have unveiled a new sailboat project called Greenscow 40. The result of a customer request, this boat is designed for a real offshore program, as its designer explains: "We were consulted by a customer who wanted to take part in the Globe 40, the round-the-world stage race for Class40s, for which the latest models are not designed. So we designed and sampled the boat with this in mind. This brings us to a boat 400 kilos heavier than modern Class40s, and therefore quite close to an Akilaria for example, but with a modern design."

Advanced environmental thinking

Faithful to their ecological commitments already displayed on the Kaori 550 the first Greenscow will be made of a sandwich of birch plywood and basalt fibers. Rather than a glass-foam sandwich, the first Greenscow will be made from a sandwich of birch plywood and basalt fibres," explains Gildas Plessis: "The Class40 rules do not accept basalt fiber at the moment, which has led us to propose two versions in fiberglass or basalt, the first conforming to the Class40 rules, and the second not. After 3 months of calculations using ADEME software, taking into account all energy parameters, as well as water resources and many others, we compared different fibers: flax, hemp, etc. We decided on basalt. Basalt had the best environmental record. It comes from stone in the Massif Central. Our birch plywood comes from Finland."

Two versions: Race or race-cruise

The Greenscow therefore comes in two versions, depending on the program and gauge compliance.

The first, whose number 1 will be launched for construction in December 2023, is dedicated to cruising, and breaks away from Class40 rules, opting for basalt, but also for two electric pods instead of an axle motor, and a lifting keel. The layout features 3 cabins, a long galley, a true saloon and a central block housing the well-centered lithium batteries. Gildas Plessis summarizes: "We're on a program that's 20% racing and 80% cruising."

The race alternative will be more streamlined, like modern Class40s, and will feature a large cap to cover the double companionway, as well as watch bubbles.

The budget excluding sail is announced at ?297,000 excluding VAT.

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