The rotor is mounted atop the vertical mast. Modern American definitions include vessels without the square sails on the main mast. May fitted a 1962 Triumph Herald with a mast and sails. The Bravo has the distinction of being able to furl its sail around the mast. The Hobie 14 is known for its forward mast and very bent banana shaped hull. The brig's foremast is smaller than the main mast. The scientific experiments were mounted on the instrument mast and base. Granulocytes include basophils, eosinophils, neutrophils, and mast cells. The secondary armament was controlled by directors mounted on platforms on each mast. The forward topgallant mast and topmasts collapsed as the bow was finally crushed. This signal is required for the activation of mast cells. This drug prevents the release of inflammatory chemicals such as histamine from mast cells. The rotor consists of a mast, hub and rotor blades. This capacity limitation is commonly the factor that determines the spacing of cell mast sites. The engines were functioning until the impact with the beacon mast.