The extra width is also needed for the curved boards since the lift forces on the curved boards decrease righting moment via the leward board.
Eh? The leeward board is pushing the hull up, thus increasing RM!!!
reduced RM... look where the COE of the board is in relation to the hull centerline.
OK: can understand that once the foils are starting to lift the boat will pivot about (or roughly about) the COE of the board; but is this still true in "non flying modes" as the boat is then pivoting about the leeward hull.
I'm no boat builder, just keen to understand this bit that I do not appear to....
Last edited by scooby_simon; 10/21/1005:50 PM. Reason: getting comments in the right place.
