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Permanent Mooring Anchor Installation
I am in the planning stages of installing a permanent mooring buoy on Orcas Island, in the Puget Sound. It will be primarily used for smaller sail, speed, and fishing boats. I am a certified SCUBA dive master and I am planning to dive to install the buoy. I am currently considering the following options:
I have free access to steel (grandparent own a steel company) so the first option is to use a multiple dead weight anchoring system. I have been looking around for information on how much weight would be needed to hold a 25ft boat (roughly). I understand that the calculation is more difficult (surface area, wind speed, tidal currents, ect) but some rough estimates would be helpful.
The second option would be to use multiple helix anchors but I am having trouble finding the size I would need and I believe installation would be extremely difficult due to the depth of the preferred mooring spot.
The third option would be a hybrid of helix and dead weight.
I would like to avoide paying $2k+ fora professionally installed system. The only benefit of that would be the ability to moor larger boats. If anyone has installed a permanent mooring anchor please share your story. Any advice is helpful.
Thanks and happy sailing.