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Old 15-03-2023, 18:35   #31
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Re: Electric or Hydraulic for Backup autopilot?

Originally Posted by Muaddib1116 View Post
Thanks! That's really close to what I have in mind. How do you manage to have both drive units attached to both ACU's and then have only one drive be able to be activated at a time? Is there some sort of 3rd party switching system?

Is your linear drive electric or hydraulic? Why did you choose that type? What type of boat do you have? Size, displacement?

Why do you use the linear drive as primary over the rotary chain drive? Have you noticed any issues with leaving one of them inactive for extended periods? for instance the spare linear drive you keep? or do you periodically switch to the other unit to exercise it?
The linear drive is electric. The Raymarine is a very nice piece of kit. Very quiet and smooth.

Details about switching system here:

The reason we use the linear drive as the primary is that it runs directly off the rudder post, the chain drive runs the rudder through the cables.

The boat is 53 feet, 38,000 lbs. We switch over to the alternate computer and drive every few days to exercise and test them. The linear drive that is a backup, just sits and waits. It is kept dry, it works when we need it.
SailingHarmonie is offline   Reply With Quote

autopilot, electric

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