Multiple component vertical sections forming a reinforced beam or multiple athwartship sections forming a reinforced frame.
Related Terms |
SPREAD
The divergence of the air stream in a horizontal or vertical plane after it leaves the outlet.
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BEAM
The width of a ship. Also called breadth.
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BREADTH
The width of a ship.
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AIR BREATHER
A device permitting air movement between atmosphere and the component in/ on which it is installed.
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HALF-POWER POINTS
Power ratios used to define the angular width of a radar beam. One convention defines beam width as the angular width between points at which the field strength is 71 percent of its maximum value. Expressed in terms of power ratio, this convention defines beam width as the angular width between half-power points. A second convention defines beam width as the angular width between points at which the field strength is 50 percent of its maximum value. Expressed in terms of power ratio, the latter convention defines beam width as the angular width between quarter- power points.
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GYROSCOPIC DRIFT
The horizontal rotation of the spin axis of a gyroscope about the vertical axis
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HEAVE
The oscillatory vertical rise and fall, due to the entire hull being lifted by the force of the sea. Also called HEAVING
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CHIP CONTROL FILTER
A filter intended to prevent only large particles from entering a component immediately downstream. Also known as Grit control filter, Last-chance filter
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HEIGHT OF TIDE
Vertical distance from the chart sounding datum to the water surface at any stage of the tide. It is positive if the water level is higher than the chart sounding datum. The vertical distance from the chart sounding datum to a high water datum is called RISE OF TIDE.
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HEELING ERROR INSTRUMENT
Heeling adjuster. Also called VERTICAL FORCE INSTRUMENT
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