Air Navigation Pro User's Guide - Xample

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17Air Navigation Pro Android6.InstrumentsUsing a GPS signal Air Navigation Pro can simulate an HSI instrument. Unlikereal-navigation instruments, the virtual instruments can be set-to-point toany waypoint in the database (airport, VOR/DME, user waypoint, etc).6.1.HSIThe HSI is the most practical of all traditionalnav instruments but it also requires sometraining before it can be used efficiently.If the GPS reception is bad the warning flagwill show that the instrument does notdisplay correct data.The top part of the screen is an emulatedHSI (Horizontal situation indicator) . Theyellow needle is the Course select pointer,the moving part in the middle is the Coursedeviation indicator (CDI) which displays thedeviation (+/- 12 degrees) from the selectedradial or course to or from the selectedwaypoint. Unlike on a real HSI where theorange Heading bug is used to set a coursefor the autopilot, the heading bug displaysthe bearing to the selected waypoint. Alsothe HSI does not display magneticheading but the track of the aircraft.The advantage of the HSI is that it displays the position of the aircraft symbol inthe middle relative to the selected course. The compass card will rotateautomatically to match the current flying track. Radial or course selection is doneby touch and swipe gesture up or down on the left or right of the compass ring.A “NAV” warning flag (as shown in the image above) will let you know that youshould 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;‣ Groudspeed is less than 5 Kts.Below the main indicator, the selected waypoint is displayed as well as thedistance from the waypoint (great circle distance). You can use any kind ofwaypoint (Airports, VOR, NDB, etc) with the HSI instrument. (A real HSIindicator requires radio signals from VOR, VOR/DME or VORTAC transmitters).Go back to index
18Air Navigation Pro Android7.Other Features7.1.Adding User WaypointsA «user waypoint» can be added on the«moving map» by pressing and holding for 2seconds on the desired location of the map.Remember to be in «EDIT MODE»before you try to add a new waypoint.Once finished, the new user waypoint willshow as a yellow star on the exact locationyou created it like the screenshot depicsbelow.Remember to have the waypoint type“User Waypoint” selected in «MapOptions».Go back to index
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Page 8 and 9: 7Air Navigation Pro Android2.3.Butt
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Page 16 and 17: 15Air Navigation Pro Android5.3.Map
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Air Navigation Pro User's Guide - Xample

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