HALF-SUBMERGED CATAMARAN

• Main Author: SUGA TOSHIHIKO
• Format: Patent
• Language: English
• Published: 24.07.1982
• Subjects: EQUIPMENT FOR SHIPPING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

PURPOSE:To prevent a combined motion of bouncing and pitching by making an opened section over upper and lower water lines on the rear hull of a strut of a half-merged catamaran and positioning the center of floatation of the strut just above the center of buoyancy of a lower hull and the strut. CONSTITUTION:A half-submerged catamaran is composed of symmetrical left and right submerged lower hulls 1, struts 2 which are raised on them, and a cross deck 3 which connect the upper ends of each strut 2 over a water level 6. Opened sections 7 are made in the rear hull of the struts 2 over the upper and lower water lines 6 so as to position the center of floatation F of the struts 2 nearly above the center of buoyancy B of the lower hull 1 and the strut 2. The positioning of the center of floatation F above the buoyancy B prevents the combination of bouncing and pitching, thereby improving the moving performance of the hull.