I installed a
Raymarine Type 2 linear ram drive in my
catamaran, which came equipped with a Raymarine type 2 rotary drive. You don’t need to change your autopilot controller, other than settings. All brands and models basically
work the same, and you can use other brands of drives with your existing controller.
The ram drive must be attached between a structurally strong part of the
hull and the
steering quadrant below decks. Angles and spacing between components is critical to getting the right geometry so that the center of
steering matches with the midpoint of the ram’s travel range, and the ram is at a right angle to the rudderpost at that midpoint. If your quadrant isn’t suitable you can add an extra tiller arm to your rudderpost -
Edson makes one and they will custom machine it to match the angles and rudderpost diameter you specify.
I learned quite a bit by doing this
project and would be happy to discuss it with you on the
phone. PM me if you want to talk.
Linear Mode
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