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Wilderness 1100

 Home-built from plans or kit

Designed by:
Schionning Designs
Schionning Wilderness 1100 CETACAE

The Wilderness 1100 is an easily handled, speedy catamaran which has accommodation and load carrying capacity suitable for most cruising purposes and is considered by the designers to be an ideal liveaboard boat. Two double cabins, forward in the hulls, can have en-suite head and shower compartments, though the standard layout has one large head and shower compartment aft in the port hull. The starboard hull has a double berth aft, and the layout can be modified to include more berths if required. The 1100, which has engines in wells in the transoms, replaces the Wilderness 1050 which had outboards in nacelles. The transoms of the new models were extended by half a metre to accommodate the wells.

The Wilderness Range
The Schionning Wilderness range of cruising cats is especially designed for simple and quick home or professional construction. Most of the boats, including the hard chine hulls and the furniture, are built from joining ready-made, pre-glassed balsa or foam cored flat panels, for example, from DuraKore. These can purchased as pre-cut kits, available in several options, for most models in the series.

The range has good load carrying potential as fits its purpose as a cruiser, yet hulls are slender enough at the waterline to give a very good speed potential. A generous bridgedeck clearance helps avoid slamming when sea conditions deteriorate. The hulls are flat bottomed, as natural in a chine catamaran construction. The flat run aft encourages planing but the bottom panel is Veed forward to prevent noisy under-hull slamming. The hulls are also flared forward, on the inside, giving additional buoyancy reserve and thus more safety at sea. The flare also helps to deflect spray from reaching the decks.

Though built mainly of flat panels, the Wilderness range does not have the angular look of a chined boat. Compound curves are strategically incorporated both to improve appearance and to reduce air drag. The deck sections are strip-planked using the already constructed parts as a mould; this allows the decks to be rounded on the turn of the hull. Strip planking the bridgedeck cabin roof also produces similar beneficial curves.

Performance cruiser
Multihull type:
  • Hard chine hulls, bulkheads from pre-glassed balsa or foam DuFlex, flat panels
  • Kits with pre-cut panels for hull and bulkheads are an option
  • Reinforced hull bottoms; Kevlar reinforcing optional
  • Furniture from DuFlex honeycomb panels
  • Strip planked decks and cabin roof
  • Speedy construction with no laminating required to build the hulls
  • The boat can be built in separate sections which are joined later
  • Composite chainplates
Sails and rigging:
  • Fractional sloop rig
Sails and rigging images:
Schionning Wilderness 1100
Deck layout and gear:
  • Comfortable and secure cockpit
  • Central wheel steering or twin wheels at each side of the cockpit
Deck layout images:
Schionning Wilderness 1100 CETACAE
Keels, boards and rudders:
  • Kick-up rudders
  • Daggerboards
In general: Roomy, well ventilated accommodation areas with plenty of storage

Port hull: Head and shower aft; workbench, navigation area midships; double cabin forward, berths over the bridgedeck, en-suite shower and heads optional
Bridgedeck: Saloon with dinette with aft-facing seating, 1.9 m (5 ft 2 in) headroom.
Starboard hull: Double berth aft; spacious galley amidships - opens above to saloon; double cabin forward, berths over the bridgedeck.

Accommodation images:
Schionning Wilderness 1100
Systems - Power, Navigation:

Engines in transom wells. Either two outboards that slide up and down, or two diesels.

Performance and handling:
  • Responsive, speedy, liveaboard cruiser
  • The design emphasises roominess and load carrying
  • Payload for longer term cruising
  • Under power: 6.5 kts cruise, 10 kts top speed
  • Under sail: 10 kts cruise, 20+ kts top speed
LOA (length overall):
11 m (36 ft 1 in)
6.5 m (21 ft 4 in)
Hull length-to-beam ratio:
Draft minimum:
0.4 m (1 ft 4 in)
Windward sail area:
76.00 m² (818 ft²)
Mast height above deck:
15 m (49 ft 3 in)
Daggerboard / centreboard:
Displacement, lightship (empty):
4770 kg (4.69 tons)
Displacement at design waterline (DWL):
6370 kg (6.27 tons)
1600 kg (1.57 tons)
Bridgedeck clearance:
0.8 m (2 ft 7 in)
Number of berths:
Cabin headroom:
1.9 m (6 ft 3 in)
Saloon headroom - cats:
1.9 m (6 ft 3 in)
Outboard engines:
Typical total engine HP:
Fuel type:
In production:
Plans available
More images:
Schionning Wilderness 1100 CETACAE Schionning Wilderness 1100 CETACAE Schionning Wilderness 1100 DHIMURRU
Degree of customisation:
Several options
Cost to home-build:
$140000 AUS (approx: £62072 Sterling / 83863 / $123137 US)*
Time to home-build from plans:
4500 hours
Time to home-build from kit:
3500 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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