Chapter 2: Installation 9Installing the Speed Transducer (Through Hull)For accurate speed readings, locate the speed transducer in theshaded ‘clear flow’ areas as shown.D587The transducer should also be:• Ahead of propellers (10% W.L. length minimum)• At least 6in (150mm) from the keel (with sailing yachts siting shouldbe forward of the keel)• Near the centreline of the vessel• Clear of other through hull fittings or projections• Have sufficient clearance inside the hull to allow the nut to be fitted• Have 4in (100mm) clearance above the through hull fitting forwithdrawalNote: The speed transducer cable can, if required, be shortened.However, new 1/8in lug connectors must be crimped to the shortenedcable.