Division (c) F1

The operator must ensure that the pre-flight calculations of the usable fuel or energy that is required for a helicopter flight includes:

1. (1)

   taxi fuel or energy that must not be less than the amount expected to be used prior to take-off;

2. (2)

   trip fuel or energy that must be the amount required to enable the helicopter to fly from take-off, or from the point of in-flight replanning, to landing at the destination aerodrome;

3. (3)

   contingency fuel;

4. (4)

   destination alternate fuel or energy, if a destination alternate aerodrome is required;

5. (5)

   final reserve fuel or energy that must not be less than:

   1. (i)

      if flying under VFR and navigating by day with reference to visual landmarks, 20 minutes of fuel or energy at best-range speed;

   2. (ii)

      if flying under VFR and navigating other than by reference to visual landmarks, or at night, 30 minutes of fuel or energy at best-range speed;

   3. (iii)

      if flying under IFR, 30 minutes of fuel or energy at holding speed at 1500 ft (450 m) above the aerodrome elevation in standard conditions, calculated according to the helicopter estimated mass on arrival at the destination alternate aerodrome or at the destination aerodrome when no destination alternate aerodrome is required;

6. (6)

   extra fuel or energy to take into account anticipated delays or specific operational constraints; and

7. (7)

   discretionary fuel or energy if required by the commander.