Join Date: Feb 2000
Location: Annapolis, Md
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Re: Allmand 31 keel cement?
Like many of the internal ballasted boat builders of that era, Allmand used a mix of concrete and a ballast material for their keels. If your boat has the short rig, most likely the ballast is iron pigs and steel boiler punchings in concrete. Allmand offered a tall rig and if you selected the tall rig there was an optional lead keel that went along with it. My recollection is that the ballast in the lead keel version was lead shot mixed in polyester resin. If your keel appears to be cement, that probably means that it is the iron ballasted-short rig version of the boat.
Iron ballast in concrete is about the worst form of ballast that is out there. Ignoring that it is very low densiity, sooner or later water can get to the iron and start to rust it. Over time you end up with a bilge full of broken up concrete that has iron in it making it harder to remove.
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Curmudgeon at Large- and rhinestone in the rough, sailing my Farr 11.6 on the Chesapeake Bay