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The HL-75 pelagic trawl door has the ability to generate a high lift (spreading power) with low resistance (drag) at the same time. The HL-75 is designed using 2 large foils on front and aft, combined with 2 narrow center foils makes the HL-75 very easy for vessel to turn and turn fast while towing, without loosing any precious time while fishing. The HL-75 aspect ratio is 1:1,75

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