SWAN 391 Loa:   12.19 m Lwl:   10.09 m Beam:   3.80 m Draught:   2.25 m Displacement:   9100 kg Ballast:   3100 kg Water:   350 ltr Fuel:   180 ltr Engine:   Perkins 40 hp Displacement Rig and sail dimensions I:   16.31 m J:   4.95 m P:   14.40 m E:   4.27 m Sail areas Fore triangle:   40.4 m2 Main Sail:   30.7 m2 Genoa 150%:   60.6 m2 Spinnaker:   145 m2 Classification Notes Shallow draught keel 1.75 m