Air Navigation Pro 5.2 User Manual - Xample

VOR/CDI
The VOR instrument uses GPS data to
display the bearing to a waypoint
The top part is an emulated VOR
indicator. The white needle (CDI, Course
deviation indicator) will display the
current deviation up to +/- 12 degrees
relative to the selected radial to or from
the course to the selected waypoint.
Course and radial selection is done by
touching and swiping gesture up or
down on the left or right of the compass
ring.
Below the main indicator the name of the
currently selected waypoint is displayed as
well as distance from the waypoint (great
circle) and GPS accuracy. You can use any
kind of waypoint (Airports, VOR, NDB, etc)
with the VOR instrument (whereas a reallife
VOR 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
button on the bottom part of the
instrument. Please read “Selecting
waypoints from the database” to get information about waypoint search and selection.
Please note that VOR radials and courses are always magnetic relative to the VOR
waypoint.
A “NAV” warning flag will let you know that you should Not trust the VOR
indicator in the following cases:
‣ No waypoint is selected for the instrument;
‣ the waypoint distance is over 250 nautical miles;
‣ the GPS accuracy is less than 2.5 nautical miles;
Note 1: you don’t need Groundspeed to get accurate information on this instrument.
Note 2: remember that you will ONLY find the spinball at the bottom of the instrument on iPhone/
iPod Touch devices.
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