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Eng ID Term Definition
1841
fixed angle plot
(British terminology). Plot prepared in advance for use in normal SOUNDING in lieu of a STATION POINTER. The arcs of equal angle subtended b... more
(British terminology). Plot prepared in advance for use in normal SOUNDING in lieu of a STATION POINTER. The arcs of equal angle subtended by selected MARKS are drawn on the SOUNDING BOARD at convenient intervals depending on the SCALE. The observed sextant angles can then be plotted in the field by visual inspection. See also CIRCLE SHEET, and SOUNDING: FIXED ANGLE.
1842
fixed angle sounding
See SOUNDING.
1843
fixed platform
See FIXED STATION.
1844
fixed star
A STAR. The expression is used par­ticu­larly to distin­guish STARS from other HEAVENLY BODIES; so called by ancients to distinguish STARS f... more
A STAR. The expression is used par­ticu­larly to distin­guish STARS from other HEAVENLY BODIES; so called by ancients to distinguish STARS from the wandering PLANETS.
1845
fixed station
A radioloca­tion station which is situa­ted in one particular spot throughout the period of its operation. As opposed to MOBILE STATION. Als... more
A radioloca­tion station which is situa­ted in one particular spot throughout the period of its operation. As opposed to MOBILE STATION. Also called shore station.In OCEANOGRAPHY, a platform from which repeated OBSERVATIONS are taken. These include coastal and island stations, LIGHT VESSELS, WEATHER SHIPS, AUTOMATIC FLOATING STATIONS and ICE ISLANDS. Also called fixed platform.
1846
fixing
The process of rendering a developed photogra­phic image permanent by removing the unaffected light-sensitive material.
1847
fixing interval
The time or distance elapsed between two subsequent fixes.
1848
fjord
See FIORD.
1849
flare stack
A tall structure used for burning-off waste oil or gas.
1850
flare triangulation
See TRIANGULATION.
1851
flat
A level tract of LAND, as the BED of a dry LAKE or an area frequently uncovered at LOW TIDE. Usually in plural.
1852
flat-bed plotter
A plotter which uses a flat surface to mount the drawing base.
1853
flattening of the earth
The ratio of the difference between the equatorial and polar radii of the EARTH (major and minor semi-axes of the SPHEROID) and its equatori... more
The ratio of the difference between the equatorial and polar radii of the EARTH (major and minor semi-axes of the SPHEROID) and its equatorial radius (major semi-axis). The flattening of the earth is the ellip­ticity of the spheroid. Also called compression.
1854
flight altitude
See ALTITUDE.
1855
flight strip
A succession of overlapping AERIAL PHOTO­GRAPHS taken along a single COURSE.
1856
Flinders bar
A bar of soft unmagnetized iron placed vertically near a MAGNETIC COMPASS to counteract DEVIATION caused by MAGNETIC INDUCTION in vertical S... more
A bar of soft unmagnetized iron placed vertically near a MAGNETIC COMPASS to counteract DEVIATION caused by MAGNETIC INDUCTION in vertical SOFT IRON of the craft.
1857
float
Any buoyant object attached to nets or fishing lines: term also used for the small buoys used for current observations.
1858
float gauge
See GAUGE.
1859
floating breakwater
A contrivance consisting of a series of square frames of timber connected by mooring chains or CABLES attached to anchors or stone blocks in... more
A contrivance consisting of a series of square frames of timber connected by mooring chains or CABLES attached to anchors or stone blocks in such a manner as to form a BASIN within which vessels riding to anchor may be protected from the violence of the WAVES.
1860
floating dock
See DOCK.