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Waterplane coefficient (C w) is the waterplane area divided by L WL x B WL. The waterplane coefficient expresses the fullness of the waterplane, or the ratio of the waterplane area to a rectangle of the same length and width. A low C w figure indicates fine ends and a high C w figure indicates fuller ends.
The data set [90, 100, 110] has more variability. Its standard deviation is 10 and its average is 100, giving the coefficient of variation as 10 / 100 = 0.1; The data set [1, 5, 6, 8, 10, 40, 65, 88] has still more variability. Its standard deviation is 32.9 and its average is 27.9, giving a coefficient of variation of 32.9 / 27.9 = 1.18
A small waterplane area twin hull, better known by the acronym SWATH, is a catamaran design that minimizes hull cross section area at the sea's surface. Minimizing the ship's volume near the surface area of the sea , where wave energy is located, minimizes a vessel's response to sea state, even in high seas and at high speeds.
"G", is the center of gravity. "GM", the stiffness parameter of a boat, can be lengthened by lowering the center of gravity or changing the hull form (and thus changing the volume displaced and second moment of area of the waterplane) or both. An ideal boat strikes a balance.
For instance, in the latter, Simpson's 3rd rule is used to find the volume between two co-ordinates. To calculate the entire area / volume, Simpson's first rule is used. [7] Simpson's rules are used by a ship's officers to check that the area under the ship's GZ curve complies with IMO stability criteria.
RV Kilo Moana (AGOR-26) is a small waterplane area twin hull (SWATH) oceanographic research ship owned by the US Navy and operated by the University of Hawaii as a part of the U.S Academic Research Fleet and a member of University-National Oceanographic Laboratory System (UNOLS). [1] She was designed to operate in coastal and blue water areas.
This chronotype prefers to go to bed at around 11 p.m., according to the Sleep Foundation report. Bears account for around 55% of individuals. Wolf chronotypes are similar to "night owls."
In fluid dynamics, the wetted area is the surface area that interacts with the working fluid or gas. In maritime use, the wetted area is the area of the watercraft's hull which is immersed in water.