RedactedNarrative: Vessel 1 was sailing in Portland Harbor during a windy day.   At some point while under sail, the upper stay to the mast broke at the deck.  Then the mast was unsupported and the mast broke at the middle and then the mast then broke just above the cabin top and then the mast and associated rigging went off the port side into the water.  No injuries were sustained by any of the occupants.  There was extensive damage to the rigging and surrounding hardware and electronics.