Paragraph 7 Fuel Allocation with Block HourI1

For fuel allocation with block hour, the following calculation methods apply.

For an aeroplane operator which can clearly distinguish between international and domestic fuel uplifts, the aeroplane operator must compute, for each aeroplane type, the average fuel burn ratios by summing up all actual fuel uplifts from international flights, divided by the sum of all actual block hours from international flights for a given year, according to the following formula—

where—

• AFBR_AO,AT = Average fuel burn ratios for aeroplane operator (AO) and aeroplane type (AT) (in tonnes per hour);

• U_AO,AT,N = Fuel uplifted for the international flight _N for aeroplane operator (AO) and aeroplane type (AT) determined using monitoring method Fuel Uplift (in tonnes); and

• BH_AO,AT,N = Block hour for the international flight _N for aeroplane operator (AO) and aeroplane type (AT) (in hours).

For an aeroplane operator which cannot clearly distinguish between international and domestic fuel uplifts, the aeroplane operator must compute, for each aeroplane type, the average fuel burn ratios by summing up all actual fuel uplifts from international and domestic flights divided by the sum of all actual block hours from these flights for a given year, according to the following formula—

where—

• AFBR_AO,AT = Average fuel burn ratios for aeroplane operator (AO) and aeroplane type (AT) (in tonnes per hour);

• U_AO,AT,N = Fuel uplifted for the international or a domestic flight _N for aeroplane operator (AO) and aeroplane type (AT) measured in volume and multiplied with a specific density value (in tonnes)^f1; and

• BH_AO,AT,N = Block hour for the international and domestic flight _N for aeroplane operator (AO) and aeroplane type (AT) (in hours).

An aeroplane operator’s specific average fuel burn ratios must be calculated on a yearly basis by using the yearly data from the actual reporting year. The average fuel burn ratios must be reported, for each aeroplane type, in the aeroplane operator’s Emissions Report.

The aeroplane operator must compute the fuel consumption for each international flight by multiplying the aeroplane operator specific average fuel burn ratios with the flight’s block hour according to the following formula—

where—

• F_N = Fuel allocated to the international flight under consideration (i.e. flight _N) using the Fuel Allocation Block Hour method (in tonnes);

• AFBR_AO,AT = Average fuel burn ratios for aeroplane operator (AO) and aeroplane type (AT) (in tonnes per hour)^f2f3; and

• BH_AO,AT,N = Block hour for the international flight under consideration (i.e. flight _N) for aeroplane operator (AO) and aeroplane type (AT) (in hours).

A verification body must cross-check whether the emissions reported are reasonable in comparison to other fuel related data of the aeroplane operator.

Average Fuel Burn Ratio (AFBR) based on all flights for a reporting year must be rounded to at least three decimal places.