The present invention relates to a jumper of (1) for use with a tang in a body of water with a flow of. The jumper of (1) has a float (2), on which, in a first section of a locating mechanism (4) and in a second portion of a deflection device (3) are arranged, in contrast to a longitudinal axis of the gierer (1) at a distance. A can being can be displaced to the deflection device (3) is applied to the locking device (4) and guided on the locking device (4) are fixed. In this way, it is achieved that, by means of the deflection device (3), the locking device (4) and the yaw velocity ψ (5) being a cable arrangement (8), and a clamped on the buoyant body (2) flow force acting (9) of the body of water by means of the yaw velocity ψ cable arrangement in a transverse force (10) at right angles to the flow force of the body of water can be converted, so that the jumper of (1) transversely to the direction of flow is driven by means of the body of water.The present invention also relates to a yaw velocity ψ tang.The present invention also relates to the yaw velocity ψ fishing.
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