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Water depth determining device for yachting, has fluctuation cursor equipped with fluctuation scale marks, and assembly of depth of water cursors connected to fluctuation cursor to face levels of depth of water
Water depth determining device for yachting, has fluctuation cursor equipped with fluctuation scale marks, and assembly of depth of water cursors connected to fluctuation cursor to face levels of depth of water
The device has a support equipped with an opening assembly including an aperture (D) and an assembly of windows (1h-5h). A fluctuation cursor is equipped with fluctuation scale marks. An assembly of depth of water cursors is connected with the fluctuation cursor to indicate the levels of depth of water. Each depth of the water cursor corresponds to a fraction of time period separating low-tide water and a high-tide water.
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