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[[File:course.jpg|250px]]
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[[File:hsi_instr.jpg|250px|caption|left]]
  
O HSI é o instrumento mais pratico de todos os instrumentos de navegação. Porem, também exige um pouco de treinamento para poder usá-lo eficientemente.
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Air Navigation can simulate an HSI (Horizontal situation indicator).
  
If the GPS reception is bad the warning flag will show that the instrument does not display correct data.
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The yellow needle is the course select pointer (OBS), the moving part in the middle is the course deviation indicator (CDI) which displays the deviation (+/- 12 degrees) from the selected radial or course to or from the selected waypoint.  
  
A parte superior da tela é uma emulação do HSI (indicador de situação horizontal). A agulha amarela é o apontador do Curso selecionado. A parte móvel no médio é o indicador de desvio de Curso (CDI), que exibe o desvio (+/- 12 graus) desde o radial ou curso selecionado até ou desde o waypoint selecionado. Ao contrário dum HSI real onde o apontador de rumo laranja é usado para estabelecer um curso para o piloto automático, o apontador de rumo mostra o rumo para chegar ao waypoint selecionado. Além disso, o HSI não exibe a direção magnética, mas o percurso do avião.
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Unlike a real HSI where the orange heading bug is used to set a course for the autopilot, the heading bug displays the bearing to the selected waypoint. Also the HSI does not display heading but the track of the aircraft.
  
The advantage of the HSI is that it displays the position of the aircraft symbol in the middle relative to the selected course. The compass card will rotate automatically to match the current flying track.
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The compass card will rotate automatically to match the current flying track.
 
Radial or course selection is done by touch and swipe gesture up or down on the left or right of the compass ring.
 
Radial or course selection is done by touch and swipe gesture up or down on the left or right of the compass ring.
  
[[File:danger.jpg]]A '''“NAV” warning flag''' (as shown in the image above) will let you know that you should '''NOT''' trust the HSI indicator in the following cases:
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[[File:warning_sign.png]] A “NAV” warning flag will let you know that you should '''NOT''' trust the HSI indicator in the following cases:
* '''No waypoint''' is selected for the instrument;
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* No waypoint is selected for the instrument;
* The waypoint distance is '''over 250 nautical miles;'''
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* The waypoint distance is over 250 nautical miles;
* The '''GPS accuracy''' is bad;
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* The GPS accuracy is bad;
* Ground speed is '''less than 5 Kts.'''
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* Ground speed is less than 5 Kts.
 
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Below the main indicator, the selected waypoint is displayed as well as the distance from the waypoint (great circle distance) and GPS accuracy. You can use '''any kind''' of waypoint (Airports, VOR, NDB, etc) to be used with the HSI instrument. (A real HSI indicator requires radio signals from VOR, VOR/DME or VORTAC transmitters).
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Below the main indicator, the selected waypoint is displayed as well as the distance from the waypoint (great circle distance) and GPS accuracy. You can use any kind of waypoint (Airports, VOR, NDB, etc) to be used with the HSI instrument. (A real HSI indicator requires radio signals from VOR, VOR/DME or VORTAC transmitters).
  
You can select a new waypoint from the database with the blue disclosure button on the bottom part of the instrument (see screenshot).
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You can select a new waypoint from the database with the blue disclosure button at the bottom part of the instrument (see screenshot).
Please read <u>[[Select a waypoint from the database|«Selecting waypoints from the database»]]</u> to get information about waypoint search and selection. (iOS version)
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Please read <u>[[Search Module]]</u> to get information about waypoint search and selection. (iOS version)
  
[[File:shit.jpg]]
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[[File:hsi_info.jpg]]
  
<u>'''Note:'''</u> remember that you will ONLY find the spinball at the bottom of the instrument on iPhone/iPod Touch devices.
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<u>'''Note:'''</u> remember that you will ONLY find the slipball at the bottom of the instrument on iPhone/iPod Touch devices.
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Back to <u>[[Air Navigation Android|index]]</u> (Android)
 
Back to <u>[[Air Navigation Android|index]]</u> (Android)
  
Back to <u>[[Air Navigation iOS|index]]</u> (iOS)
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Back to <u>[[Instruments|previous page.]]</u> (iOS)
 
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[[Category:Instruments]]

Latest revision as of 17:39, 3 November 2016

Other languages:
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caption

Air Navigation can simulate an HSI (Horizontal situation indicator).

The yellow needle is the course select pointer (OBS), the moving part in the middle is the course deviation indicator (CDI) which displays the deviation (+/- 12 degrees) from the selected radial or course to or from the selected waypoint.

Unlike a real HSI where the orange heading bug is used to set a course for the autopilot, the heading bug displays the bearing to the selected waypoint. Also the HSI does not display heading but the track of the aircraft.

The compass card will rotate automatically to match the current flying track. Radial or course selection is done by touch and swipe gesture up or down on the left or right of the compass ring.

Warning sign.png A “NAV” warning flag will let you know that you should NOT trust the HSI indicator in the following cases:

  • No waypoint is selected for the instrument;
  • The waypoint distance is over 250 nautical miles;
  • The GPS accuracy is bad;
  • Ground speed is less than 5 Kts.



Note: Please note that you may still get correct deviation information when GPS accuracy is less than 2.5 nautical miles. In this case the compass card will be oriented to the north.


Below the main indicator, the selected waypoint is displayed as well as the distance from the waypoint (great circle distance) and GPS accuracy. You can use any kind of waypoint (Airports, VOR, NDB, etc) to be used with the HSI instrument. (A real HSI indicator requires radio signals from VOR, VOR/DME or VORTAC transmitters).

You can select a new waypoint from the database with the blue disclosure button at the bottom part of the instrument (see screenshot). Please read Search Module to get information about waypoint search and selection. (iOS version)

Hsi info.jpg


Note: remember that you will ONLY find the slipball at the bottom of the instrument on iPhone/iPod Touch devices.



Back to index (Android)

Back to previous page. (iOS)