PAUL'S ROWING-SAILING-MOTOR BOAT Russian patent published in 2014 - IPC B63B35/71 

FIELD: transport.

SUBSTANCE: proposed boat comprises hull, scull, transverse bulkhead, rig, seat, sole and bottom. Rig comprises mast with sails and hoop, board keels, fore compartment, manhole cover being secured to turn thereabout. Suspended sear can be detached. Keeled bottom accommodates motor board, rudder being fitted on vertical shaft. Displacement hull accommodates central keel-skid extending relative to inscribed board keels-skids for them to make egg-shape single-hull vessel.

EFFECT: all-the-year-round operation.

7 cl, 5 dwg