Atsep Basic - Nav

ATSEP BASIC - NAV What is variation? - The difference between true and magnetic north What is meant by instrument flight rules? - Flying by reference to instruments in the flight deck, and navigation is accomplished by reference to electronic signals What is the most common geodetic reference system with global coverage? - WGS 84 What is meant by "dead reckoning"? - Determining position based on known speed, course and elapsed time What is meant by "course" in relation to aircraft movement? - The direction over the ground the aircraft is moving What is considered an integrity risk in relation to navigational performance? - That undetected navigational system errors results in hazardously and misleading information to an aircraft On what frequency band is the DME operating on? - UHF What is an advantage with the NDB? - The low operating frequency allow reception beyond line of sight How does the VOR create the different radials? - By transmitting 2 signals with different phases What information does the pilot get from a NDB? - Direction only to the station What is a disadvantage of the NDB? - The signal is subject to interference and reflections What airborne equipment is required to make use of a VDF? - A VHF radio What principle is used in VOR bearing measurements? - Phase comparison What elements are required for a ILS? - LOC, GP and markers or DME What information does the pilot get from the glide path? - The correct vertical decent profile Of what use, if any, can a military TACAN be used by civilian aircraft? - Civilian aircraft can use the DME part What is EGNOS? - European satellite augmentation system for GPS/Galileo What navigation system can operate without external sources? - INS What airborne augmentation technique uses additional satellites to determine the integrity of the GPS before it is used for navigation? - RAIM (?) What is the major difference between RNAV and RNP? - RNP requires on-board performance monitoring and alerting