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Copyright 2008  by B. Kohler   all rights reserved

LOA/LWL hulls                     8.990 m
Beam c/c                          4.200 m or 3.66 m
Beam catamaran                    4.520 m or 4.00 m
Draft hull/rudders                0.433/0.720 m
Weight empty                        750 kg
Weight CWL                         1776 kg
Sail area
Jib                                10   m2
Main sail                          30   m2
Reacher                            40   m2
L/B ratio46 %
Engine (outboard)                  12   HP
Construction time                about900 hours
Standing height in the hulls       1,82 m maximum

http://www.ikarus342000.com/Catpage.htm http://www.ikarus342000.com/INTRO.htm
updated 01.16.2008
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DUO 900
a fast cruiser/racer trailer catamaran
this picture shows the small"channel" version
The DUO 900 was designed for a French client. He wanted a  trailer catamaran which is suitable for channel and coastal cruising. This is the reason why the original design has a beam of only 4.00 m over all. The boat have had to be a trailer catamaran. So there where many restriction. One of these is the beam on the trailer. In Europe in general the maximum trailer beam is restricted to 2.53 m. This restricts the hull beam to 1,25m. As you can see on the lay out, the boat has sufficient accommodation for three persons. The figure in the left drawing is 1,82 m.   
The hulls have a-symmetrical cross section. This means no boards or keels are necessary.
Construction is the proven (ply)wood/glass/epoxy system. The boat is easy to build. Also beginners will need not more as 900 hours construction  time.
The boat is mainly build from 8 mm plywood on stringers. In the end this is the simplest way to build.
If you are interested on this boat send me an email. The boat can be alterd to meed your personal requirements as far as this is possible in the basic design. Example, an other customer has opted for a more beamy boat, so we altered the beam to 4,2m. The basic costs for the plan is € 300,- by the way. 
After many requests, here the study plan for the DUO 900 (costs: Euro 10,-)
These consists of 12 pages including drawings, drawing list and list of materials
Plan costs Euro 300,00
The plan is delivered as an attachment to
an e-mail all drawings are CAD (DXF) files