Question for Crazy Dave, God of the Water Ballast

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Rick Webb

A couple of months ago there was some discussion on bringing electricity onto the boat. One of the comments made was that the water ballast boats do not have any metal in the water. I did not think about it at the time but now I wonder does the bracket that the mast is grounded to normally sit in the water? Does it matter? Hate to open that can of worms again but I have alot of free time lately and I know Crazy Dave is knocking back that shine to help his pinky heal don't know how he is going to type without it but lets see.
 
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Crazy Dave Condon

A drunkin sailor is a crazy sailor

I drank enough kick a poo joy juice that evening. My wife screamed at me for not going to the horsepital. Tis fine now. Ric, your comments were funny. You made my day. You asked a good question. The 240 has a wire that is bolted to the mast step and attached to the top plate underneath the compression post area (under the cover). The plate I am referencing to is the one that you will find the large bolt on top. That bolt is screwed into a stainless steel plate that holds the centerboard in place. The plate is in contact with the water. Any static is dispersed through the plate. The 260 mast step is screwed onto the stailess steel compression post/plate which sits on the plate underneath the compression post area. Any static is dispersed the same as the 240. The 212 has a wire from the mast to a point on the centerboard houseing to disperse static electricty. Oftern, electrical strikes are spoken about but the incidence is rare. It is unusal for a strike to hit a boat direct. I have found if close to shore, it will hit most the time trees and then disapate into the water. The boats that took damage as a result of a strike came from a strike hitting the water and dissapating into the boat. One thing I like about Hunter is they put a large fuse(300 amp) between the battery and the electrical panel for protection which is usually found near the end on the postive wire that attaches to the battery on the trailerables for example 240 & 260. Getting back to damage could be replacing electronics, thru hulls and so forth. Although there are devices to detract lightning strikes, an old salty dog who was an electrical engineer said if a lightning bolt ever did strike a boat, you would need a rather large cable bigger than your body to divert the strike and even with that it would blow a hole in the boat. Some may disagree. The wiring on the Hunters does get rid of static but a direct hit no but again a direct hit is so rare that I have never seen a boat afterwards. The ones I am familiar with are those which took current through the water. I aint no elecltrical engineer but can only speak from experience. I hope this helps you. Crazy fart blossom Dave Condon
 
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David King

galvanic action

The h26 has metal in the water in three places. One, the hinge assembly for the rudder assembly. Two, the mushroom valve for the water ballast intake/outlet. Three, part of the rudder, even when the rudder is raised. I spotted some metal deterioration during a haulout a few years ago and bonded all three ares together with a zinc bolted to the rudder. Last haulout, no problem. My boat is in salt water all year. David King "Molly"
 
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Crazy Dave Condon

David King

If your boat is the one in the marina with all the shops around the harbor, I saw your boat and wondered if I saw something on the rudder. Can you provide which zinc style and what you used to bond with. I am curious and will be learning something from you. Crazy Dave Condon
 
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