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  2. Garmin Forerunner - Wikipedia

    en.wikipedia.org/wiki/Garmin_Forerunner

    This version was originally supposed to be released in Q4 of 2011, but the November date had slipped and it was eventually released in Q1 of 2012. New features introduced in this model are the inclusion of the Sifter iv chipset, a barometric altimeter, and improved swimming metrics using an accelerometer in the watch.

  3. Position error - Wikipedia

    en.wikipedia.org/wiki/Position_error

    In consequence of Bernoulli's principle, the different speeds of the air result in different pressures at different positions on the aircraft's surface. [3] The ideal position for a static port is a position where the local air pressure in flight is always equal to the pressure remote from the aircraft, however there is no position on an ...

  4. Garmin Fenix - Wikipedia

    en.wikipedia.org/wiki/Garmin_Fenix

    a. ^ The Garmin Fenix 7 and the second-generation Garmin Epix, while essentially sharing the same core features, diverge notably in their display technology and battery performance. While the Fenix series retains its energy-efficient transflective memory-in-pixel (MiP) display, the Epix Gen 2 features an AMOLED color display, at the expense of ...

  5. Gillham code - Wikipedia

    en.wikipedia.org/wiki/Gillham_Code

    The transponder gets its altitude information from an encoding altimeter mounted behind the instrument panel that communicates via the Gillham code. Gillham code is a zero-padded 12-bit binary code using a parallel nine- [ 1 ] to eleven-wire interface , [ 2 ] the Gillham interface , that is used to transmit uncorrected barometric altitude ...

  6. Talk:Radar altimeter - Wikipedia

    en.wikipedia.org/wiki/Talk:Radar_altimeter

    As I understand it, a famous example is Funchal Airport, where the altimeter reading suddenly drops quite a bit when the airplane comes over the runway from the sea, which is quite a bit lower. (And if you bank 90° during approach, an incorrect altimeter reading will be the least of your problems.) ospalh 21:14, 7 March 2009 (UTC)

  7. Height above ground level - Wikipedia

    en.wikipedia.org/wiki/Height_above_ground_level

    The altimeter, which is usually a barometer calibrated in units of distance instead of atmospheric pressure, can therefore be set in such a way as to indicate the height of the aircraft above ground. This is done by communicating with the control tower of the airport (to get the current surface pressure) and setting the altimeter so as to read ...

  8. Air data inertial reference unit - Wikipedia

    en.wikipedia.org/wiki/Air_data_inertial...

    An Air Data Inertial Reference Unit (ADIRU) is a key component of the integrated Air Data Inertial Reference System (ADIRS), which supplies air data (airspeed, angle of attack and altitude) and inertial reference (position and altitude) information to the pilots' electronic flight instrument system displays as well as other systems on the aircraft such as the engines, autopilot, aircraft ...

  9. Aeronautical Code signals - Wikipedia

    en.wikipedia.org/wiki/Aeronautical_Code_signals

    Altimeter reading when subscale set 1013.25 hPa (atmospheric pressure at sea level in the International Standard Atmosphere) [2] QNH: The pressure set on the subscale of the altimeter so that the instrument indicates its height above sea level (the altimeter will read runway elevation when the aircraft is on the runway). [1] Request Leeds QNH