There was a thread on here a long time ago about a guy that made a CO2 cartridge with balloon that you could inflate to stop a mast turtling, would something like that have stopped this wing filling with water which stopped the righting?
Jeff Southall Current boats Nacra 5.8 1703 Animal Scanning Services Nacra 5.8 1667 Ram Raider Nacra 18 Square Arrow 1576