Abstract: A sea anchor for a vessel, which is formed in a generally symmetrical configuration of a hollow and baseless truncated body or paraboloid with a wide mouth member at the edge of the cone base of strong material forming a hollow generally truncated body which is attached to a wide mouth strength member and in which the strong material has orifices in it so as to cause energy dissipation by the increased velocity therethrough and with the area of the orificial opening being not greater than 75 percent of the surface area of the truncated body and where the depth of truncated cone is such that the ratio of the diameter of the base of the body to the height or depth is in the range of 80 to 90 percent. The sea anchor of the invention has a bridal means attached to the wide mouth strength member arranged to have members meet at the longitudinal centerline of the cone for joining to a single anchor line from said vessel. The joining point the distance from the base of the body in the range of 1.