ATPL: Given:Distance 'A' to 'B' 1973 NM Groundspeed 'out' 430 kt Groundspeed 'back' 385 kt Safe endurance 7 HR 20 MINThe distance from 'A' to the Point of Safe Return (PSR) 'A' is:
Question 578, General Navigation - ATPL - Airline Transport Pilot license