What the heck could have caused this?

[alctel]

Hauled out yesterday and there is a quarter sized hole in the BACK of the fin keel. It was a hard enough hit that the lead is splayed out on the other side and looks for all the world like a bullet hole.

I don't recall backing into anything hard since the last time I hauled out (let alone hard enough to do this) and wouldn't that have destroyed the ridder anyway?!

Any ideas?!

[Reefmagnet]

I'd suspect that maybe you've snagged up on an anchor chain or rode

[pesarsten]

Narwhale?

[Calif.Ted]

How were you hauled and launched ? Could it have been snagged by the straps or some hardware on the straps ?

[hpeer]

Originally Posted by Reefmagnet

I'd suspect that maybe you've snagged up on an anchor chain or rode

Maybe even you own. I’ve had it happen once or twice. Baffelling until you figure out what’s going on. Happened on the St Lawrence river, strong current; must have been an eddy that spun me right around.

[hpeer]

Originally Posted by Reefmagnet

I'd suspect that maybe you've snagged up on an anchor chain or rode

Maybe even you own. I’ve had it happen once or twice. Baffelling until you figure out what’s going on. Happened on the St Lawrence river, strong current; must have been an eddy that spun me right around.

See if your chain matches the hole.

[Suijin]

Originally Posted by Reefmagnet

I'd suspect that maybe you've snagged up on an anchor chain or rode

Looks like that to me, as it's more worn and smoothed than some momentary impact would cause.

[alctel]

Originally Posted by Calif.Ted

How were you hauled and launched ? Could it have been snagged by the straps or some hardware on the straps ?

Hmmm, the same yard that overcharged me for work last time I was out two years ago splashed me the day I was due in two hours early before I got to the boatyard which I thought was a bit odd at the time.

Originally Posted by Suijin

Looks like that to me, as it's more worn and smoothed than some momentary impact would cause.

I'm not sure it's that, I used 60' of chain and the rest is line, so most of the chain would be on the bottom :/

[Don C L]

It is odd since it looks like whatever gouged it also pulled/peeled some lead forward on the stbd side, perhaps a shackle? but there are no marks on the keel from a line or chain being dragged across it... it'd be nice to see a shot of the stbd side. It does appear like you backed into some submerged debris, but you are right, you'd likely remember and the rudder is there (but does it hang down as low as that damage?)

[wyb2]

Originally Posted by alctel

Hmmm, the same yard that overcharged me for work last time I was out two years ago splashed me the day I was due in two hours early before I got to the boatyard which I thought was a bit odd at the time.



I'm not sure it's that, I used 60' of chain and the rest is line, so most of the chain would be on the bottom :/

Nylon rode can do it too.

[daletournier]

Wind against tide in shallow water, anchor rode gets wrapped around keel. Had happened to me on current boat and previous boat. Happens on moorings as well sometimes.

[Cadence]

I'd guess a chain rode did the damage in a crowded anchorage. Not likely yours.

[Jesse]

It looks fresh, is there any growth or corrosion on the metal surface? If not it may have happened during haul-out.

[Cheechako]

Surface looks a bit smooth (but hard to see) I'm thinking you may have a stray current or bonding problem...?
Or maybe not...does that first pic show lead peeled to the side?

[Scaramanga F25]

Anchor rode wrap.