Catamaran Cosmos 1160

Hulls are built separately upside down on temporary building frames. After being planked, the hulls are sealed with epoxy resin and glass, then turned by hand for sealing inside.

Building the Cosmos range
Plans for the Cosmos range of performance cruising catamarans are available for home builders and professional boat yards. The boats are strip planked in either Durakore (manufactured compound planks with a balsa wood core) or Western Red Cedar. With this method of construction the compound curves of the hulls and decks can be relatively easily accurately formed and building requires only a moderate level of skill and no complex or expensive tools. The result is a sleek looking, strong and light boat. Western Red Cedar is cheaper and a little easier to use but Durakore planking is about 30% lighter because of the significant weight saving in the core. The construction with Durakore gives a very high strength to weight ratio and will produces a lighter boat allowing either a little more performance perhaps for club racing, or a better payload for cruising.

The Cosmos 1160 is a performance cruiser with slim, easily driven hulls. She will sail very well with a moderately sized rig, and thus can easily be sailed short-handed. The boat, which is designed for liveaboard or long-term ocean cruising, is quicker and cheaper to build than many other cruisers of similar length because of the low volume of the hulls and accommodation. Like all the Cosmos range the 1160 is strongly but lightly built in cedar or Durakore and carries a good payload for a performance boat. The bows are designed with excellent reserve buoyancy forward, making her safe when running downwind at speed.

The Cosmos 1160 is a performance cruiser with slim, easily driven hulls.