A hydrofoil, suitable for kite surfing and jet skiing, comprises a keel fin having a first end portion for fastening to a board; and a front wing and a rear wing which are arranged one behind the other in the travel direction and are connected to a second end portion of the keel fin; wherein a conne
A hydrofoil, suitable for kite surfing and jet skiing, comprises a keel fin having a first end portion for fastening to a board; and a front wing and a rear wing which are arranged one behind the other in the travel direction and are connected to a second end portion of the keel fin; wherein a connecting rod is situated on the second end portion of the keel fin and detachably connects the wings to the keel fin; and wherein a plate is situated on an outer side of the keel fin and on an outer side of at least one of the wings, and via detachable fastening means is braced to the connecting rod so as to detachably fasten at least one of the wings to the keel fin.
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1. A hydrofoil, comprising: a keel fin having a first end portion for fastening to a board; anda front wing and a rear wing which are arranged one behind the other in the travel direction and are connected to a second end portion of the keel fin;wherein a connecting rod is situated on the second end
1. A hydrofoil, comprising: a keel fin having a first end portion for fastening to a board; anda front wing and a rear wing which are arranged one behind the other in the travel direction and are connected to a second end portion of the keel fin;wherein a connecting rod is situated on the second end portion of the keel fin and detachably connects the wings to the keel fin;wherein a plate is situated on an outer side of the keel fin and on an outer side of at least one of the wings, and partially overlaps the keel fin and said at least one wing to transmit torsional moments between the keel fin and the at least one wing, andwherein the plate is braced to the connecting rod by detachable fastening means to thereby detachably fasten at least one of the wings to the keel fin. 2. The hydrofoil of claim 1, wherein the plate is situated in a recess which extends along the second end portion and one or both wings. 3. The hydrofoil of claim 2, wherein the plate is accommodated in the recess in a positive-fit manner. 4. The hydrofoil of claim 2, wherein the recess is formed as a groove in the second end portion on the keel side. 5. The hydrofoil of claim 1, wherein the plate continues an outer contour of the second end portion and of the corresponding wing in a continuous manner. 6. The hydrofoil of claim 1, wherein the plate is made of material selected from metal, fiber composite material or a combination thereof. 7. The hydrofoil of claim 1, wherein as fastening means, threaded bolts are provided which are inserted from the outer side of the plate and screwed to the connecting rod. 8. The hydrofoil of claim 1, wherein the plate has a rod-shaped design and extends in the travel direction. 9. The hydrofoil of claim 1, wherein the plate extends parallel to the connecting rod. 10. The hydrofoil of claim 1, wherein the connecting rod extends in the travel direction and is detachably fastened to the second end portion of the keel fin;the front wing is detachably fastened to a front end of the connecting rod; andthe rear wing is detachably fastened to a rear end of the connecting rod. 11. The hydrofoil of claim 10, wherein the keel fin at its second end portion forms a receptacle for the connecting rod. 12. The hydrofoil of claim 11, wherein the keel fin at its second end portion forms a passage opening as a receptacle, through which the connecting rod is passed. 13. The hydrofoil of claim 11, wherein the keel fin at its second end portion forms a groove that is open on one longitudinal side as a receptacle, in which the connecting rod engages. 14. The hydrofoil of claim 1, wherein the keel fin is made of a fiber composite material. 15. The hydrofoil of claim 1, wherein the connecting rod is made of metal. 16. The hydrofoil of claim 1, wherein the connecting rod is made of a material selected from steel, titanium alloy, aluminum alloy, fiber composite material or a combination thereof. 17. The hydrofoil of claim 1, wherein the connecting rod has a constant diameter. 18. The hydrofoil of claim 1, wherein the connecting rod has a diameter in the range of 10 to 25 mm and/or a length of 400 to 900 mm. 19. A hydrofoil, comprising: a keel fin having a first end portion for fastening to a board; anda front wing and a rear wing which are arranged one behind the other in the travel direction and are connected to a second end portion of the keel fin;wherein a connecting rod is situated on the second end portion of the keel fin and detachably connects the wings to the keel fin;wherein a plate is situated on an outer side of the keel fin and on an outer side of at least one of the wings, and via detachable fastening means is braced to the connecting rod so as to detachably fasten at least one of the wings to the keel fin;wherein the keel fin at its second end portion forms a receptacle for the connecting rod;wherein the plate is arranged in a recess formed on the second end portion of the keel fin; andat least one bolt for jointly securing the plate and connecting rod at the second end portion of the keel fin. 20. A board having a hydrofoil, said hydrofoil comprising: a keel fin having a first end portion for fastening to a board; anda front wing and a rear wing which are arranged one behind the other in the travel direction and are connected to a second end portion of the keel fin;wherein a plate is situated on an outer side of the keel fin and on an outer side of at least one of the wings and partially overlaps the keep fin and the at least one wing to transmit torsional moments between the keel fin and the at least one wing,wherein the plate is braced to the connecting rod by detachable fastening means so as to detachably fasten at least one of the wings to the keel fin.
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