| The actual position of the aircraft at any point in time |
| The same as that given on the No. 1 IRS |
| The computed position based on a number of sources (IRS, Radio, ILS, GPS etc) |
| Another source of aircraft position; it is independent of other navigation sources (IRS, Radio, ILS, etc) |
MENU
EN 
IT
ES
DE
FR
PL
CZ
RS
Exam Questions
Training Quiz
Exam simulation
PDF Exam
Contact Us
Prices
Are you a school?
App Mobile