independent displacements and/or rotations that specify the orientation of a body or system
NOTE 1 A marine body may experience three linear and three rotational motions as depicted in Figures 1 and 2.
NOTE 2 The principal axis is parallel to the mean water surface and aligned with the direction of incident energy, and the rotations act about the centre of gravity.
Figure 2 – Six degrees of freedom – Submerged device
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