THE PROCESS

We select for you top-of-the-range composite materials such as resins, gel coat and multidirectional fabrics, all of them certified by considered organizations such as Lloydds, Norwegian Nordsk office, or the Bureau Veritas, an international certification office. This endows all our catamarans with excellent resistance to ageing and is responsible for their exceptional mechanical characteristics. For example, a P465 structure weighs 7.5 to 10 kg/m2 according to the sampling plans ! The Bureau Véritas certification, which awards, on your request, an individual construction certificate, is one of the GROUPE ALLIAURA MARINE yard's major assets. This involves intensive supervision and regular inspections which are carried out by Véritas experts for the entire construction process of each catamaran. these inspections entail mechanical, traction, bending, physico-chemical shearing tests and representative test-pieces of hull planking. Beyond these inspections, we insure our structures for 3 years.

STRUCTURE

The structures of our catamarans are guaranteed 10 years !
It is the fruit of controlled and resolutely hi-tech technology, implemented by extremely qualified labour.
Moreover, our fidelity with the Marc Lombard office, in perfect symbiosis with our own design office is a guarantee of stability and also common research into technological evolutions born out of ocean racing.We have been using the technique of vacuum bagging for many years, allowing us to apply this technique to all the structural parts of the boat, hull, deck and bulkheads.
This technique associated with the use of high quality polyester resin and "aviation" quality glass cloth very precisely selected according to their use, gives us a weight per m_ among the lightest in the marine business.Thus in matters of cloths, the choice includes very complementary varieties throughout the range, going from unidirectional, to bi, tri and quadridirectional.
All of these techniques and processes are reinforced by the scrupulous choice of our supplies of which, resins, cloths and foams are approved by world renowned organisations, such as Lloyd's and Bureau Véritas.
The latter issues on demand an " Individual Construction Monitoring Certificate" !

Hulls
Glass polyester sandwich on PVC foam applied under vacuum.
Solid laminate keel lines reinforced in the beaching zones and contact points.

Bulkheads
Glass polyester sandwich on PVC foam applied under vacuum.

Deck
Glass polyester sandwich on PVC foam applied under vacuum. Implemented on contact in a female mould in one single piece with chainplate and beam reinforcements.
Anti-skid incorporated in the moulding.

APPENDAGES
The hung rudders on stainless steel stocks and self-aligning bearings, are linked together by a crossbar which can take the emergency tiller (supplied).
They are made from multiaxial cloths, including unidirectional and bidirectional, impregnated with polyester resin and entirely epoxy foam filled.

Depending on the versions we use different keel systems, fixed fins or daggerboards.
The fixed fin keels are made in the same way as the rudders, completed with numerous bulkheads and foam filled along the entire bottom 1/3, to ensure perfect watertightness in the event of a violent shock.
They are also designed to function as sumps being able to recover any water ingress at a much lower level than the soles.
As for the daggerboards and board casings, they are made with epoxy impregnated glass cloth.

The daggerboards are made buoyant, for safety and practical reasons through the choice of low density foam.
The daggerboard casings also use uni and bidirectional cloths, to ensure perfect stiffness of the assembly, and to increase their rigidity in the event of violent shock, the daggerboards have a sheering role thereby avoiding damage to the boat's structure.
They are extremely reinforced and interdependent with the hull through dense bulkheading from one end to the other of the casing over all its height.

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