Re: Zinc-anodes for rudder

In the U.S., we always used the R-5, and our mechanic drilled them for us.  I think these read ZIMAR?   These have the little copper-contact on the flat side.

In Seville, we purchased a Tecnomar 125mm (same size as the R-5) and we had a diver install a pair in Italy a couple of months ago.  It seems to be abrading at about the same speed as the R-5, so it looks like it will last about a year.  

The Tecnomar does not have the copper contact!  Should I be concerned?


SM2K No. 350 (2002)
At anchor, Salerno

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