High speed surface craft and submersible craft

A method for moving through water, the method comprising:

• providing a marine vessel comprising:
• at least one buoyant tubular foil;
• at least one venturi injection ring positioned adjacent to the perimeter of the at least one buoyant tubular foil so as to create a passageway between the at least one venturi injection ring and the perimeter of the at least one buoyant tubular foil, wherein the passageway is characterized by a fore opening, an aft opening, and an intermediate opening disposed between the fore opening and the aft opening, and wherein the intermediate opening is smaller than the fore opening and the aft opening;
• at least one fluid opening formed in the perimeter of the at least one buoyant tubular foil adjacent to at least one of the intermediate opening and the aft opening;
• and
• at least one passageway connecting the at least one fluid opening to a source of fluid;
• and
• moving the marine vessel through water, such that the venturi effect caused by the passage of water through the passageway causes fluid to be drawn from the source of fluid through the at least one passageway and released from the at least one fluid opening.