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Old 03-29-2013
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Re: Lead vs cast iron keels

Quote:
Originally Posted by msmith10 View Post
Yard guys also claim lead absorbs a grounding without transmitting as much force to the hull. I think there's truth to that in small or moderate hits. Of course, hitting a rock a 6+ knots with either isn't going to have a good outcome.
Bill Garden said the opposite - iron bounces off while lead "forms" around rocks & such. I've seen boats with iron bounce off and keep going but every lead keel I've seen hit came to a dead stop. Those observations would seem to back up Garden.

Iron keels also have the advantage of having removable and replaceable keel bolts whereas lead keels must have radical surgery or be re-cast to replace corroded bolts.

Properly coated iron keels do not present much, if any problem re: corrosion.

As far as performance, lead is unquestionably best, except for depleted uranium.
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