FIELD: transport.
SUBSTANCE: invention relates to tethered propulsors for ships. Proposed element has top flexible layer extending in crosswise and lengthwise directions, bottom flexible layer adjoining said top layer and jointed therewith by several webs running along chord of shaped element, and inner air-filled space there between. At least one hole is arranged between two front edges of said top and bottom layers to inject air into said inner space. Several draw strips are secured on shapes element and connected to towing cable for connecting shaped element with ship. Several bow strips are connected to layers or webs to decrease or increase magnitude of shaped element by reefing or unreefing. Besides, there is rod element arranged in lengthwise direction to stabilise aerodynamic profile. Rod element is secured on top or bottom layer or on web. One of reefing strips turns from crosswise direction onto lengthwise direction. Proposed device comprises mast with jointer element. Ship propulsor comprises bow mast and towing cable pivoted to ship bow point located ahead of mast.
EFFECT: higher efficiency of reefing/unreefing.
25 cl, 16 dwg
