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Compass Marine How To | all galleries >> Compass Marine How To Articles >> Installing A Raymarine Rudder Position Sensor > Rudder Position Sensor - Quadrant Close Up
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Rudder Position Sensor - Quadrant Close Up
11-MAR-2006 Compass Marine Inc.

Rudder Position Sensor - Quadrant Close Up

In this picture you can see the rudder quadrant and the Starboard shim I made to attach the rudder position sensor arm to. Starboard is a high modulus engineered plastic sheet product available in thicknesses to 3/4 inch. Starboard is impervious to moisture and rot and is very well suited for use on a boat that is why I chose to use it. It works, cuts and taps similarly to wood and is a tremendously useful but expensive product.


On many Edson steering quadrants there are two 5/16 threaded holes already drilled and tapped into its surface. I simply measured the center to center of these 5/16 threaded holes and transferred the measurements to the Starboard shim using a set of calipers. I then drilled the two holes and mounted the ball (the arm has a socket and the base is a ball) to the Starboard perfectly centered between the two 5/16 holes. With the ball finally mounted, and screwed into the Starboard shim, I then bolted the shim to the quadrant. In the picture you can see the two 5/16 bolt heads with the ball mount for the sensor in between them.

Nikon D70
1/60s f/3.5 at 18.0mm with Flash full exif

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Pat 22-Oct-2007 05:40
Did you have any problems with the clearance between the rudder reference and the hot water tank? It looks close when the quadrant would turn fully.