What should be done to adjust a boat 's landing in order to change it 's fore-and - aft attitude while in the water ?
A jibe can be a dangerous maneuver in a fore-and - aft rigged boat because , as the direction of the wind crosses the boat 's centerline , the " old " leeward side of the mainsail and boom suddenly becomes the new windward side , and the sails are always fully filled by the wind .