Volvo Penta - sail drive damage

[Eastcoast]

Hi, I recently hauled our 2011 Hanse 355 after 12 month in the water. The anodes were new 12 months earlier and as she came out of the water it was obvious we had a serious problem. The sail drive had catastrophic corrosion and a hole in the leg you could put your hand through.

The cause is not clear, the shaft anode was largely intact and not significantly eroded. The prop was unaffected, I have heard that in the last 12 months as many as 30 boats here in aussie have suffered similar fate and I would love to connect with other Volvo sail drive owners who have had challenges like this..