If we want to succeed a proper air navigation, we must move from the departure point to our destination point, without to be lost or crack navigation rules and of course without endangering the passengers. There are several limitations and difficulties in relation to simple navigation. For example, you cannot stop to check the route and neither can refuel in the air. Also, the time it takes to confirm the route is much smaller. So, it is very important for the pilot to plan correctly his flight and to have constantly aware of its location along the route.

     The procedures used for air navigation, depending on the type of flight and the weather conditions prevailing during the flight, are divided into VFRVFRDefinition: Visual Flight Rules...
and IFRIFRDefinition: Instrument Flight Rules...
. If we fly IFR, we are using only the navaids to control our course, ie VORVORDefinition: VHF Omnidirectional (Radio) Range...
, NDBNDBDefinition: Non-Directional (Radio) Beacon...
, ILSILSDefinition: Instrument Landing System...
, etc. In case the flight is VFR, the pilot flies by visual observations, although it may sometimes be of assistance by navaids too.

For FlightSimmer.GR
 Giannis Evagelinos