Midship Area Coefficient (CM)
Midship Area Coefficient (CM) is a dimensionless value that represents the ratio of the immersed midship area of a ship's cross-section to the product of the ship's beam and draft. It is an important parameter in naval architecture as it provides an indication of the fullness of a ship's midsection. A higher CM value indicates a fuller midship section, which can result in increased resistance and reduced speed. On the other hand, a lower CM value indicates a finer midship section, which can result in decreased resistance and increased speed. The optimal CM value for a ship depends on its intended use and design parameters.
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