SWAN 431 Loa:   13.18 m Lwl:   10.16 m Beam:   4.09 m Draught:   2.3 m Displacement:   12000 kg Ballast:   5400 kg Water:   375 ltr Fuel:   150 ltr Engine:   Perkins 37 hp Displacement Rig and sail dimensions I:   17.98 m J:   5.47 m P:   16.23 m E:   4.19 m Sail areas Fore triangle:   49.2 m2 Main Sail:   34.0 m2 Genoa 150%:   73.8 m2 Spinnaker:   177 m2 Classification Notes