Perforated slat trawl door
A perforated plate and net plate technology, which is applied in the field of trawl net plates, can solve problems such as unsatisfactory dynamic stall control methods, and achieve the effects of increased stability, low noise generation, and increased opening force
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[0042] figure 1 The perspective view in FIG. 2 shows an improved trawl panel generally indicated by the reference numeral 20 in accordance with the invention disclosed herein. The trawl panel 20 includes a main deflector 22 having a leading edge 24 and a trailing edge 26, such as figure 2 The profile of the trawl panel 20 depicted in . shown in Figure 1-3 In the embodiment of the trawl mesh panel 20, the main deflector 22 is formed by an arched steel plate. For the figure 2 For a particular profile, the maximum thickness 28 of the primary deflector 22 is approximately midway between the leading edge 24 and the trailing edge 26 . The steel plates forming the main deflector 22 have an arcuate inner surface 32 and an outer arcuate surface 34 which respectively span a chord 36 of the main deflector 22 which extends between the leading edge 24 and the trailing edge 26 . The trawl panel 20 also preferably includes a leading edge lift stiffening structure consisting of a pair...
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