Senior Moment Member
Join Date: Jun 2011
Location: West Vancouver B.C.
Thanked 104 Times in 100 Posts
Rep Power: 6
Re: Lead vs cast iron keels
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.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.