A trans free non hydrogenated high C-16 type palm fat suitable for the manufacture of trans free non hydrogenated hard structural fat that is being suitable for use in the manufacture of low SAFA polymono unsaturated margarine and spreads and shortening and fat blends incorporating such hard Structural fat. The wind-attacked element can be modified via at least one active drive element that is disposed thereupon and is effectively connected thereto by modifying the aerodynamic effect thereof in order to be guided into a given position relative to the watercraft or to dynamically maneuver. The repeated sets of segments act both as a shield to microwave energy and as focusing elements for microwave energy when used in conjunction with food products, while remaining electrically safe in the absence of the food products.