Lõplik kütusevaru, mille kogus peab olema piisav a) kolbmootoriga lennukite puhul 45 minutiliseks lennuks või b) turbiinmootoritega lennukite puhul sihtlennuvälja kohal 30 minutit kestvaks lennuks, mis sooritatakse standardtingimustes ootekiirusel ning kõrgusel 1 500 jalga (450 m), arvestatuna vastavalt eeldatavale massile sihtlennuvälja varulennuväljale või sihtlennuväljale (kui sihtlennuvälja varulennuväli ei ole nõutav) saabumise hetkel.
The pilot-in-command shall only commence a flight if the helicopter carries sufficient fuel and oil for the following: ... (2) for IFR flights: ... (B) to fly for 30 minutes at normal holding speed at 450 m (1 500 ft) above the alternate aerodrome/operating site under standard temperature conditions and approach and land.
The pre-flight calculation of usable fuel required shall include: ... c) contingency fuel, which shall be the amount of fuel required to compensate for unforeseen factors. It shall be five per cent of the planned trip fuel or of the fuel required from the point of in-flight re-planning based on the consumption rate used to plan the trip fuel but, in any case, shall not be lower than the amount required to fly for five minutes at holding speed at 450 m (1 500 ft) above the destination aerodrome in standard conditions; ...
