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Revolving coupling in order to avoid the propeller effect upon the end of the leader line by using large Artificial Flies

 Sometimes on launching in fly line, by using large Flies, there is the risk that the end of the leader line curls up, especially the final part (extremity). Actually the propeller effect can be created that can be determined by the use of the very large fly imitations and/or the realistic Wing sizes. Further to the friction of air, they can cause the curling up of the end of the leader line and especially of the final part (extremity) to which the fly is tied.

The solution to avoid this annoying inconvenience is to directly insert between the Fly Line and the End of it before then leader line or even in the centre of the the leader line a winch (swivel) made of plastic material (Fluor-Clear), state-of-the-art in Space Technology. Such axes are conceived to launch the flies made by the GVS products, thus flies with Realistic Wings and the avoidance of the propeller effect upon the end of the leader line with fly.