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Hi guys,

This video was recorded between October 11th and October 20th. 

We haul our to investigate a sound I thought I heard from the rudder. After the haul out, it turned out not to be related to the rudder. It's embarrassing. The sound was caused by a heavy lead weight that we use when tying to a fixed wall in areas with a high tidal range. It was shifting and scraping over the hull, causing an unpleasant sound.  

Now for the real surprise. The corrosion on the "rudder shoe". I was not expecting that! The rudder shoe has no electrical connection to the rest of the boat, so maybe the corrosion was caused by the zink anode I put on there. I was under the impression that only the less noble metal (in this case, the zink) would experience corrosion. Did I misunderstand something? 

It was a pretty good experience in the yard, but there were some issues due to the language barrier. If I were to do it again, I would wait until we got to Portugal. Everyone here seems to speak really good English :) 

I hope you have a fantastic weekend :) Thank you so much for your support! Stay safe :)   


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Comments

Arend Jan Klinkhamer

Surprises pop up. At least the positive side is that the coppercoat application worked well. I am very curious myself about my coppercoat application. On the advice of the coppercoat importer here in the Netherlands, but to the horror of others, I applied coppercoat to the rudder shoe, the aluminium saildrive and the bronze folding propeller, with a solid epoxy coat in between. I will post an update next year when the boat will go ashore for winter again. I keep my fingers crossed. The reason I did it was to avoid the need to haul out just for antifouling the saildrive and propeller.

Hans Ekkehard Plesser

Jefa Rudder provides a detailed discussion of galvanic corrosion of rudders (https://jefa.dk/electrolysis/). Their key suggestions are to keep copper coating away from the rudder and to ensure that the rudder is insulated from the rest of the boat.