The design of a floating oil-drilling platform consists of two rectangular pontoons and si...

The design of a floating oil-drilling platform consists of two rectangular pontoons and six cylindrical columns which support the working platform. When ballasted, the entire structure has a displacement of 26,000 tons (expressed in long tons of 2240 lb). Calculate the total draft h of the structure when it is moored in the ocean. The specific weight of salt water is 64 lb/ft3. Neglect the vertical components of the mooring forces.