FISHING 1 8 .10 2 3 4 5 6 7 Behaviour of headline cable during towing. 8 There are three main forces acting on the head line cable. 9 One is the sinking weight of the cthaeblceaibnleseitas,ealfnaonthdetrhies tthhierddirsagthoef 10 pulling force on the headline sonar which is fixed to the trawl. 11 Wadhjuesntethdethpeulhlienagdfloinrececaisbsleuitisabtalyut 12 and if steel wire is used it will slope bit down due to the weight. 13 DynIce Data will have similar slope but in the opposite and upward direction. 14 If there is a slack in the headline 15 cable the steel wire falls down, it can touch the warps during turning and even fall into or below the 16 trawl and damage it and the warps. DynIce Data, due to its lightness wdriallgbeanpdussthaeydaubpowveartdhsebwyatrhpes and 17 the trawl. Schools of fish in front of the trawl are therefore not cut through by the headline cable 18 leading to reduced catch. 19 hampidjan.com 20
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