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.
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
