@MysticBlue and
@duck21
Doug and Moderator
the information that Doug referenced to is somewhere on this site. It was information assimilated by Eddie Breeden,, retired Hunter Marine Warranty Manager, and Jim Seamons who owned a Catalina 14.2, Hunter 19 water ballast,Hunter 260 and Hunter 356 from remaining files found in remaining archives.
Mars Metals who casted keels came on board appx in 1998; thus, the former keel manufacturer was Mayfield but probably out of business but discontinued building keels first. No other information or information is available.
@duck21 wss gracious to share the owners manual on his Hunter 376 should be comparable to
@MysticBlue keel.
I did speak with Al and Mike on this site who were former Hunter employees. The wings are bolted onto the wing bulb. A lead insert was placed into the bilge area but not sure if it was fiberglassed in. There are three bolts as reported holding the keel on but not sure on that. However I do not know of any keel bolts we’re ever glazed in by Hunter Marine as I was a Hunter dealer until 2010.
at no time should the keel ever move when bolted in place. Hopefully this will help you