aeg, milleks IFR-lendude puhul on arvestuslik lennuaeg, mis kulub õhusõiduki stardist kuni saabumiseni navigatsiooniseadmetega määratletud punkti kohale, kust on kavandatud alustada instrumentaallähen, for IFR flights, the estimated time required from take-off to arrive over that designated point, defined by reference to navigation aids, from which it is intended that an instrument approach procedur, for VFR flights, the estimated time required from take-off to arrive over the destination aerodrome