M3™

M3™ - mylar based continuous yarns technology.

The major manufacturers have not changed their basic process in the last 20 years. Laminate sails are still built using yarns which are impregnated with resin and a scrim on both sides which is coated in resin to hold the membrane together. It is this resin that breaks down over time as the sail is hoisted, tacked and folded after racing or cruising. This causes delamination, the two sides of the membrane come apart and the sail loses structural strength as there is nothing to support the yarns in place. The resin also adds weight to the sail, initially this weight can be offset by the extra strength but as the resin breaks down the weight remains for less strength.

The M3™ technology doesn't need resin in the production of the sails and this has a number of advantages. When the yarns are impregnated with the resin and it sets, the yarns will become very hard in tension. As the sail moves and the yarns are bent and twisted, they will start to breakdown and the overall strength of the structure will be reduced. If the resin is removed, the yarns will remain soft, this means as the sail moves there is no difference in tension across the strand as the individual fibers that make up the strand can move independently. Removal of the extra yarns plus the significant mass of the resin in a laminate sail, results in a reduction in overall weight of at least 15-30%.

The M3™ skins are loaded into a vacuum bag which is pressurized to -0.95 bar, this equates to no less than 9 tons per square meter across the entire sail. The entire skin and bag is then loaded into a computer controlled oven. When the pressure and heat are applied to the sail the two layers of polymer react and fuse together to form a new layer of material in an irreversible process. This seals the two layers of Mylar together and encapsulates the structural threads. It is important to note that the polymer 'fuses' together and is not merely 'stuck' together, the resulting film is soft and flexible, delamination is not an issue anymore as there is no resin between the skins to break down over time. M3™ is a major advance from 'mould production' sail technology, which has demonstrated many limitations arising from: low temperature and a non uniform heating process acting on only one side of the sail (the main cause of delamination) and being physically limited in both size and shape of the 'one piece' sails because of the size and design of the mould.

It is the best choice for yachts of any length when the performance advantages and additional expense of carbon is not required.

From January 2009, all cruising and racing OneSails M3™ sails will be provided with a delamination warranty of three and two years respectively.

M3™ lamination
Press-fusion process: 9 tons at 120° C
Base Scrim

Yarns

Dry yarns

The yarns will remain soft, this means as the sail moves there is no difference in tension across the strand as the individual fibers that make up the strand can move independently.
Conventional lamination
Resin glued
Base Scrim

Yarns Resin

Resin glued yarns break easily

When the yarns are impregnated with the resin and it sets, the yarns will become very hard in tension. As the sail moves and the yarns are bent and twisted, they will start to breakdown and the overall strength of the structure will be reduced.

Dlaczego warto wybrać OneSails?

1. Ekskluzywne technologie.
Przez ponad 10 lat pracy zespół projektantów żaglowni OneSails sprawił, iż technologia włókien ciągłych tworzących jednoczęściowe żagle stała się rzeczywistością w świecie jachtów regatowych i turystycznych.
2. Efektywność.
Wszystkie właściwości żagla, takie jak niska waga, utrzymywanie kształtu i odporność na odkształcenia są zoptymalizowane w celu zapewnienia lepszych osiągów w porównaniu z tradycyjnym żaglem panelowym. W nowoczesnych technologiach OneSails wykonanych z włókien ciągłych nie ma słabych punktów, takich szwy i łączenia brytów, które narażają żagiel na rozciąganie i utratę kształtu.
3. Jakość.
Żagle są projektowane i produkowane według najwyższych standardów tylko na bazie starannie wybranych komponentów, aby zapewnić najwyższy poziom jakości i długowieczności żagla. Membrany 4T FORTE™ są produkowane wyłącznie w jednej fabryce we Włoszech..
4. Projektowanie żagli.
Najlepszy kształt żagla jest rezultatem badań i doświadczeń. OneSails jest liderem wśród producentów i projektantów żagli, nieprzerwanie inwestując w badania i rozwój aby osiągnąć najlepszy z możliwych profili żagla. Efekt tej pracy i podejścia żaglowni widoczny jest dzięki klientom żaglowni OneSails, którzy zwyciężają w Mistrzostwach Świata i Europy.
5. Naprawa żagli.
Jedną z podstawowych działalności żaglowni OneSails jest zapewnienie klientom wsparcia, doradztwa i serwisu na najwyższym poziomie. Każda z żaglowni OneSails posiada zespół fachowców, którzy zapewnią możliwość naprawy żagli. Ponadto oprócz wzrastającej liczby żaglowni, Grupa OneSails posiada rozległą sieć punktów serwisowych położonych w strategicznych miejscach na mapie Europy.

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