6 - ATPL - There are two NDBs, one 20 NM inland, and the other 50 NM inland from the coast. Assuming that the error caused by coastal refraction is the same for both propagations, the extent of the error in a position line plotted by an aircraft that is over water will be:
Question 6 - Radio Navigation - ATPL - Airline Transport Pilot license
Greater from the beacon that is 50 NM inland
The same from both beacons when the aircraft is on a relative bearing of 090° and 270°
Greater from the beacon that is 20 NM inland
The same from both beacons when the aircraft is on a relative bearing of 180° and 360°
Training tests and timed exam simulations ATPL - Airline Transport Pilot license
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