EG trimaran consists of a boat hull on which there is mounted a boat seat which is combined with a joining plate, pontoon stabilisers and an adjusting device. Oar tholes are fitted to the pontoon stabilisers. This design permits the use of oars with long shafts. The seating position and point of balance are adjusted by the adjusting devices, which are fitted on both sides of the boat hull and on the joining plate. The boat hull (Fig. 1) has a flat keel and an outer keel running continuously fore to aft. <IMAGE>
