Sometime over the summer, I think maybe during tropical storm Irene, my keel sustained damage. It looks like she sailed over, then backed down upon her mooring chain, and the chain became caught for a brief time on the after end of the keel. At the bottom 24", on the after edge, just above the wing, gelcoat is completely gone, and about 2" of iron is exposed on one side of the keel, and about 1" on the other side. Since she's in salt water, deterioration is happening quickly. I've only inspected the damage with a mask and snorkel. I plan to haul in January to repair the damage. Any advice as to how to proceed with the repair would be much appreciated. Thanks.