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Cosmos 1160

 Home-built from plans or kit

Designed by:
Schionning Designs
Schionning Cosmos 1160 AURIGA

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.

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.

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.

Performance cruiser
Multihull type:
  • Strip planked in Western Red Cedar (cheaper and easier), or Durakore (lighter)
  • Balsa cored bulkheads
  • Sealed with epoxy resin and glass
  • Composite forward beam with striker
Sails and rigging:
  • Fractional sloop rig
  • Fully battened main
  • Fixed or rotating mast
  • Roller furling genoa
  • Asymmetric spinnaker flown from the bowsprit
Sails and rigging images:
Schionning Cosmos 1160
Deck layout and gear:
  • Flat decks with non-slip surface
  • Targa bar carries solar panels and aerials, and lifts and carries a dinghy
  • Wheel steering
  • Aft anchoring roller and storage
  • Main sheet traveller track on the cockpit seatback
  • Drop down swimming platform aft which can be raised for storage when under way
  • Good forward visibility from the helm
  • Hardtop bimini with side curtains
  • Garbage and fish lockers under the cockpit sole
Deck layout images:
Schionning Cosmos 1160 AURIGA
Keels, boards and rudders:
  • Kick-up rudders mounted in the bottom step of the transoms
  • Daggerboards - offset in the hulls to give more accommodation space
Port hull: Double cabin aft; navigation area midships; double berth forward
Bridgedeck cabin: Saloon with 360 degree visibility; dinette; windows open on to the cockpit for ventilation
Starboard hull: Head and shower compartment aft; galley midships; double berth forward
Accommodation images:
Schionning Cosmos 1160 Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA
Systems - Power, Navigation:
  • Two 9.9 HP 4 stroke outboards mounted in wells in the transoms - retractable
  • Option of 2x diesel saildrives
  • Push pull cable system for steering
Performance and handling:
  • Simple handling with centralised controls for steering, sails and motor
  • Fast, light cruiser
  • Easily driven hulls with 11.4:1 length: beam ratio
  • 6.5 kts cruise, 9.5 kts top speed with the motor
  • 8 - 12 kts cruise, 20+ kts top speed under sail
LOA (length overall):
11.6 m (38 ft 1 in)
6.8 m (22 ft 4 in)
Hull length-to-beam ratio:
Draft minimum:
0.48 m (1 ft 7 in)
Windward sail area:
84.0 m² (904 ft²)
Mast height above deck:
16 m (52 ft 6 in)
Daggerboard / centreboard:
Displacement, lightship (empty):
3700 kg (3.64 tons)
Displacement at design waterline (DWL):
5200 kg (5.12 tons)
1500 kg (1.48 tons)
Bridgedeck clearance:
0.65 m (2 ft 2 in)
Number of berths:
Cabin headroom:
1.85 m (6 ft 1 in)
Saloon headroom - cats:
1.9 m (6 ft 3 in)
Outboard engines:
Typical total engine HP:
Fuel type:
Fuel capacity:
100 lt (26 US gallons)
Water capacity:
600 lt (159 US gallons)
In production:
Plans available
More images:
Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA Schionning Cosmos 1160 AURIGA
Degree of customisation:
Several options
Cost to home-build:
$140000 AUS (approx: £62072 Sterling / 83863 / $123137 US)*
Time to home-build from plans:
6000 hours
Time to home-build from kit:
4500 hours
Designer's/manufacturer's website:
Used boats for sale:
24 boats of this brand currently available!

* Exchange rates last updated: Sunday 27th January 2008 19:27 GMT

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