DESCRIZIONE
A trawl door (1) is disclosed, comprising two or more hydrofoil elements (2), cross-sectional stiffeners (3), front-towing attachment facilities (4), and rear-towing attachment facilities (5), wherein the trawl door further comprises a positional control system arranged to be able to change the equilibrium position of the trawl door within the water by shifting the Centre of Gravity (CoG) of the trawl door. Furthermore, different uses of such a trawl door are disclosed. [Image Omitted]