ATPL: At 0422 an aircraft at FL370, GS 320 KT,is on the direct track to VOR 'X' 185 NM distant. The aircraft is required to cross VOR 'X' at FL80.For a mean rate of descent of 1800 fpm at a mean GS of 232 KT, the latest time at which to commence descent is:
Question 508, General Navigation - ATPL - Airline Transport Pilot license
Explanation: At 0422 an aircraft at FL370, GS 320 KT,is on the direct track to VOR 'X' 185 NM distant. The aircraft is required to cross VOR 'X' at FL80.For a mean rate of descent of 1800 fpm at a mean GS of 232 KT, the latest time at which to commence descent is: