MULTIHULLS
Fast coastal trailer catamaran
Plan & manual *
US $  310,-
Here a new design in the 8 m range.  A DUO 800 but symmetrical. This design has symmetrical hulls.
Why ? The load capacity is bigger and the whetted surface smaller. Which means more speed under low wind conditions. The wider hulls enable the installation of a bath room and an extra berth in the other hull. The sleek nacelle is very easy to build. The boat will weight 830 kg. So trailing behind a modest car is still possible. With the DUO 800 long passages where made. With the DUO 800 S this can be done in more comfort.
Like my other designs the boat is build in the ply(wood) glass, Epoxy system. Still the best system for amateur boat building.
S
Bulkhead construction drawing click to enlarge
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MULTIHULLS
Fast coastal trailer catamaran
S
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MULTIHULLS
Fast coastal trailer catamaran
Copyright     2014  by B. Kohler
      All rights reserved
S
SPECIFICATION

Loa, Lwl                         8.25 m  
Draft                            0.28 m
Beam C/C                         4.20 m
Beam total                       5.02 m Draft                            0.40 m
Draft dagger board down          1.39 m 
Weight empty                  830.00 kg
Weight max. CWL               1500.00kg

Sail area parallel rig         34.60 m2
L : B ratio hulls              1 : 18,5
L : B ratio boat               50 %
Max. righting moment (RM)     3900 kgm
Max.speed windspeed 21.72 kn, 20.63 kn  (computer prediction)
Auxiliary outboard engine 10 HP
Construction time              900 hours
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Study plan
US $ 13,-
* 31 drawings, all are  DXF 1 : 1 files, instruction 29 pages


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13 pages including table of contents and list of materials