Boats, amphibious vehicles and other waterborne vessels

Claim 1

A VESSEL HAVING AT LEAST ONE HYDRAULIC JET REACTION PROPULSION APPARATUS MOUNTED ON EACH SIDE OF THE VESSEL, EACH APPARATUS INCLUDING A DISCHARGE ORIFICE TO DIRECT A JET REARWARDLY OF THE VESSEL FOR FORWARD PROPULSION, AND MEANS FOR DRAWING IN WATER AND EJECTING IT THROUGH SAID ORIFICE, A PIVOTALLY MONTED DEFLECTING MEANS OPERATIVELY ASSOCIATED WITH EACH DISCHARGE ORIFICE, MEANS TO SHIFT EACH DEFLECTING MEANS ABOUT ITS PIVOT AXIS BETWEEN A NONDEFLECTING POSITION AND A POSITION IN WHICH REARWARD FLOW IS OBTURATED, AND INSTEAD IS DEFLECTED FORWARDLY OF THE VESSEL, CONTROL MEANS INDIVIDUAL TO EACH DEFLECTING MEANS TO SHIFT THE SAME BY AN AMOUNT FROM NONDEFLECTING POSITION, INDEPENDENTLY OF THE OPPOSITE DEFLECTING MEANS, FOR STEERING, EACH DEFLECTING MEANS BEING OF GENERALLY CYLINDRICAL SHAPE ABOUT ITS PIVOT AXIS AS A CENTER, BUT EACH TERMINATING IN A FLAT EXIT LIP WHICH IN THE NONDEFLECTING POSITION IS DISPOSED ANGULARLY RELATIVE TO THE REARWARD DIRECTION OF THE ISSUING JET, WHEREBY WATER REACTION FROM THE ISSUING JET TENDS TO RETAIN THE DEFLECTING MEANS IN ITS NONDEFLECTING POSITION.