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  2. QFF - Wikipedia

    en.wikipedia.org/wiki/QFF

    Print/export Download as PDF ... in accordance with meteorological practice. [1] [2] This is the altimeter setting that is intended ... surface synoptic chart and is ...

  3. Altimeter setting - Wikipedia

    en.wikipedia.org/wiki/Altimeter_setting

    In ISA temperature conditions the altimeter will read the height above the airfield/runway in the vicinity of the airfield. SPS/STD - 'Standard Pressure Setting' or just 'Standard' refers to the altimeter being set to the standard pressure of 1013.25 hPa. It is the setting that causes an altimeter to read the aircraft's flight level (FL).

  4. Altitude - Wikipedia

    en.wikipedia.org/wiki/Altitude

    When flying at a flight level, the altimeter is always set to standard pressure (29.92 inHg or 1013.25 hPa). On the flight deck, the definitive instrument for measuring altitude is the pressure altimeter, which is an aneroid barometer with a front face indicating distance (feet or metres) instead of atmospheric pressure.

  5. Pitot–static system - Wikipedia

    en.wikipedia.org/wiki/Pitot–static_system

    A pitot–static system is a system of pressure-sensitive instruments that is most often used in aviation to determine an aircraft's airspeed, Mach number, altitude, and altitude trend. A pitot–static system generally consists of a pitot tube , a static port, and the pitot–static instruments. [ 1 ]

  6. A Beginner’s Guide to Reading a Birth Chart - AOL

    www.aol.com/beginner-guide-reading-birth-chart...

    A birth chart will show the snapshot of where each planet is in the sky, but then within this snapshot, the sky will be divided up into 12 equal slices for the 12 zodiac signs, so every planet ...

  7. MNREAD acuity chart - Wikipedia

    en.wikipedia.org/wiki/MNREAD_acuity_chart

    The MNREAD acuity chart or Minnesota low vision reading chart is a text based chart used to measure near visual acuity in people with normal or low vision. [1] It can also be used to measure maximum reading speed, critical print size and the reading accessibility index of a person. [2] Digital and printed types of charts are available. [3]

  8. Height above ground level - Wikipedia

    en.wikipedia.org/wiki/Height_above_ground_level

    In aviation, atmospheric sciences and broadcasting, a height above ground level (AGL [1] or HAGL) is a height measured with respect to the underlying ground surface.This is as opposed to height above mean sea level (AMSL or HAMSL), height above ellipsoid (HAE, as reported by a GPS receiver), or height above average terrain (AAT or HAAT, in broadcast engineering).

  9. Altimeter - Wikipedia

    en.wikipedia.org/wiki/Altimeter

    Diagram showing the face of the "three-pointer" sensitive aircraft altimeter displaying an altitude of 10,180 ft (3,100 m). Reference pressure of about 29.92 inHg (1013 hPa) is showing in the Kollsman window. An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level. [1]