Scope
A ship can be considered to have six degrees of freedom in its motion, i.e., it can move in any of six axes.
Three of these involve translation:
- surge (forward/astern)
- sway (starboard/port)
- heave (up/down)
and the other three rotation:
- pitch (rotation about surge axis)
- roll (rotation about sway axis)
- yaw (rotation about heave axis)
Dynamic positioning is concerned primarily with control of the ship in the horizontal plane, i.e., the three axis surge, sway and yaw.
Read more about this topic: Dynamic Positioning
Famous quotes containing the word scope:
“Happy is that mother whose ability to help her children continues on from babyhood and manhood into maturity. Blessed is the son who need not leave his mother at the threshold of the world’s activities, but may always and everywhere have her blessing and her help. Thrice blessed are the son and the mother between whom there exists an association not only physical and affectional, but spiritual and intellectual, and broad and wise as is the scope of each being.”
—Lydia Hoyt Farmer (1842–1903)
“In the works of man, everything is as poor as its author; vision is confined, means are limited, scope is restricted, movements are labored, and results are humdrum.”
—Joseph De Maistre (1753–1821)
“Each man must have his “I;” it is more necessary to him than bread; and if he does not find scope for it within the existing institutions he will be likely to make trouble.”
—Charles Horton Cooley (1864–1929)