| abstract |
A trawl door having enhanced and rather high efficiency, lightness of weight in water and ease of manufacture. The trawl door preferably includes at least one slat and preferably two slats ( 6, 7 ) disposed forward of the leading edge ( 31 ) of a single main deflector body ( 2 ), and the main deflector has a profile wherein: (I) the outer side surface ( 28 ) of said main deflector body exhibits greater camber than does the inner side surface ( 29 ) of said main deflector body; (II) the thickest part of the profile of said main deflector body is located front of center; and (III) the outer side surface ( 28 ) is convex and the inner side surface ( 29 ) is concave. In one aspect the trawl door of the invention including at least a synthetic portion, preferably a mixture of a polyamide and an elastomer, whereby the synthetic material forming the at least a synthetic portion of the trawl door receives impacts fracture free. |