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Mooring
Pob,
Let''s do some math...
The 250 lb mushroom properly set in sand or mud will by design hold about 3x its out of water weight. So your shoice of 250 x 3 equales 750lbs. Do you feel this is adequate?
With a mushroom it is the scope that essentially governs the holding power. If the chain at the mushroom''s eye allows it to raise only 7 degrees, the holding power will only equal the mushroom''s dry weight.
My choice for a private mooring would be a Helix. Testing of these has shown breakout forces of 20,000 lbs. Check it out at helixmooringsystems.com
Safe Sailing on the new vessel. JEF
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