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Mast Beam Repair


The mast sits mainly on the after part of the beam and usually twists back leaving a depression on the deck behind the mast. That's one way to tell it you have a problem, or the start of one. Not being able to use the door to the hanging locker to close off the forepeak is another.

These symptoms can lead you to different places. On the older boats, there is a laminated wooden beam holding up the mast. The laminations of this beam can fail, letting the mast sag. On the newer boats, this wooden beam was replaced by an aluminum beam hidden inside the overhead liner. The bulkheads of the newer boats, which support this beam, are supported by the liner forming the cabin sole. This liner can sag, letting the bulkhead and therefore beam sag also. On either boat, but more prevalently on the newer boats with the balsa core, the pressure on the deck can lead to compression of the core, particular if water has infiltrated.






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