Introduction of parallel middle body
Parallel middle body refers to the part with the same cross-sectional area and shape under the design waterline in the middle of the hull. The parallel middle body concentrates the displacement in the ship and forms a rectangular space, which can simplify the design and construction, save cost, increase the capacity and facilitate cargo handling. Usually ships with square coefficients greater than 0.6 can have parallel middle bodies. High-speed ships with a small square factor generally have no parallel mid-body. Its main parameters are the percentage of the parallel mid-body length to the length of the ship and the forward and backward positions along the length of the ship.