12 | ST40 Speed Instrument Owner’s Handbook |
The transducer should:
•Be ahead of the propellers (by a minimum of 10% of the water line length ).
•Be at least 150 mm (6 in) away from the keel (ideally ahead of the keel if a sailing yacht).
•Be as near as possible to the centre line of the vessel.
•Be clear of other
•Have sufficient clearance inside the hull to fit the nut.
•Have 100 mm (4 in) of headroom to allow for withdrawal.
The transducer should be sited within the clear water flow areas indicated by the shaded areas in the following diagram.
Sailing vessel
Planing power vessel
Displacement power vessel
Transducer siting |