KD 122 VOYAGER
The idea, a go anywhere boat, for the lowest costs possible, light, fast, easy to build and cheap to maintain.
HERE THE RESULT
The boat is a wood/glass/Epoxy composite construction. Easy to build by amateurs and professionals alike.
The boat sports a-symmetrical hulls in the tradition of the famous CSK designs.
The length of the boat is 12 meters (40feet). This is also the waterline length. To have easy sea motion the forward ship and transom area is kept very light. But the boat has all the amenities for six persons for long journeys. The geodetic deck house is strong and easy to build. The height in the deckhouse is 1,9 m otherwise between 2,1 and 1,85m.
Every effort was made to keep the costs low. This is the reason I designed the A-frame mast which can be built from glass fiber flag poles or Aluminum tubes. This will lower the cost for the rig, one of the biggest posts, by 70 %. The mast can be set or lowered by yourself. The mast folds forwards.
You can choose between a roll reef main or the battened main sail.
Maintenance and running costs are low by design.
The boat has a draft of only 60cm (2 feet), the rudders up.
Falling try can be done without drama.
The possibility to anchor in small protected coves with not a lot of water is unusual for a boat of this size. So you can avoid expensive ports. The maintenance of wood/Epoxy boats is in general very low. For example, our Pelican needed no repainting after 12 years when we sold here.
The plans consists of 45 CAD drawings mostly to scale
1 : 1 and a construction manual. Construction time can/will vary greatly depending of your experience. But around 2500 hours are realistic.
SPECIFICATION
Length over all 12 m (ex. Rudders)
Length water line 11,95 m
Beam center/center 5 m
Beam over all 6,2 m
Draft rudders up 0,6 m
Rudders down 0,8 m
Sail area roll main 56 m2
Sail area battened mains 69 m2
Genoa 53 m2
Weight empty 3100 kg
Load 1900 kg
Bridge deck clearance 0,7 m
Base speed over a 24 hour period
Standard sail area 56 m2 = 10,4 knots
Genoa + main sail 98 m2 = 11,8 knots
Maximal righting moment 14250 kg
Length over all 12 m (ex. Rudders)
Length water line 11,95 m
Beam center/center 5 m
Beam over all 6,2 m
Draft rudders up 0,6 m
Rudders down 0,8 m
Sail area roll main 56 m2
Sail area battened mains 69 m2
Genoa 53 m2
Weight empty 3100 kg
Load 1900 kg
Bridge deck clearance 0,7 m
Base speed over a 24 hour period
Standard sail area 56 m2 = 10,4 knots
Genoa + main sail 98 m2 = 11,8 knots
Maximal righting moment 14250 kg
STUDY PLAN US $ 20,-
PLANS US $ 1980,-
18 pages of information , example drawing, list of materials to calculate costs
editCopyright © 2025 by B. Kohler, K-designs All rights reserved
"Flipping over" of a hull in real time. By the way, in one minute
Click on the picture
Click on the picture
Picture story of building a Voyager (KD122)
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