Navigation Terminology Flashcards
What is the difference between Indicated Air Speed (IAS) and Calibrated Air Speed (CAS)?
Instrument and Position Error
What is the difference between CAS and Equivalent Airspeed (EAS)?
Compressibility Corrections
What is the difference between EAS and TAS?
Pressure + Temperature corrections
What is the difference between TAS and GS?
Wind effect
What is Drift?
The angular difference caused by wind between the HDG of an aircraft and the track over the ground.
What is the definition of a bearing?
The angular direction of a distance point expressed in degrees from a selected datum
What does ETA mean?
Estimated Time of Arrival
What does ETI mean?
Estimated Time Interval
What does EET mean?
Estimated Elapsed time
What does ETD mean?
Estimated Time of Departure
What is Time Overhead?
Time overhead a significant point
What is Dead Reckoning?
A method of navigation by which the position of an aircraft is calculated by the pilot using a previously known position then applying the actual direction and speed of travel.
What is a Landmark?
A chosen feature that is preferably unique to its surroundings that can be plotted to give navigation guidance
What is Pinpoint?
The determination of an aircraft’s position by visual observation of the aircraft above a point on the ground
What is a Fix?
A determination of the aircraft’s actual position obtained by any means other than a visual observation. I.e. using aids
