Join Date: Jul 2007
Location: Windy Wyoming
Thanked 36 Times in 35 Posts
Rep Power: 9
Re: Unweighting the keel during repairs
That's exactly my worry if we do the repairs with the keel pushing upwards. While it will be hard to reproduce floating form perfectly via slings or cradles, just approximating normal keel dangle has to be better than what we have now, when perhaps half the total boat weight is concentrated on the keel/hull transition zone.
Dunno if jacks between keel sump and deck underside would help any?
One possibility would be to weld up a gantry just aft of the companionway out of some 4" Sched40 and an I-beam across the top. I kinda want to pull the Penta MD6 out of this beast anyhow, and that would be a useful way to lift it in and out. Fat lifting sling and two chain hoists to the corners would unweight most of the keel; a second gantry at forward lifting points could do the whole boat. Would also make it easy to lift it onto a transport trailer when the time comes to move it; unloading that sucker with a 20,000# forklift was not a stress-free day.
Albin Ballad 30, Fionn