Given the following information, what is the additional fuel required? The Pre-determined Point PDP procedure has to be applied to a Commercial Air Transport flight under IFR for an aeroplane with turbine engines, from the departure aerodrome A to the destination aerodrome B, with one alternate aerodrome C.
Distance from A to B: 1600 NM
Distance from A to C: 1350 NM
TAS: 410 kt
Fuel flow: 2750 kg/h
Headwind Component: 15 kt
Regulation (EU) No 965/2012
AMC1 CAT.OP.MPA.150(b) Fuel policy
(c) Predetermined point (PDP) procedure
If the operator’s fuel policy includes planning to a destination alternate aerodrome where the distance between the destination aerodrome and the destination alternate aerodrome is such that a flight can only be routed via a predetermined point to one of these aerodromes, the amount of usable fuel, on board for departure, should be the greater of (c)(1) or (c)(2):
(1) The sum of:
(i) taxi fuel; N/A
(ii) trip fuel from the departure aerodrome to the destination aerodrome, via the predetermined point;
| 1600 NM / (410 kt - 15 kt hdw) = 4.05 h 4.05 h x 2750 kg/h = 11 138 kg |
(iii) contingency fuel calculated in accordance with (a)(3);
| 11 138 kg x 5% = 557 kg |
(iv) additional fuel if required, but not less than:
(A) for aeroplanes with reciprocating engines, fuel to fly for 45 minutes plus 15 % of the flight time planned to be spent at cruising level or 2 hours, whichever is less; or
(B) for aeroplanes with turbine engines, fuel to fly for 2 hours at normal cruise consumption above the destination aerodrome, this should not be less than final reserve fuel; and (v) extra fuel if required by the commander.
| 2 h x 2750 kg/h = 5500 kg |
(c)(1) TOTAL: 11 138 kg + 557 kg + 5500 kg = 17 195 kg
(2) The sum of:
(i) taxi fuel; N/A
(ii) trip fuel from the departure aerodrome to the destination alternate aerodrome, via the predetermined point;
| 1350 NM / (410 kt - 15 kt hdw) = 3.41 h 3.41 h x 2750 kg/h = 9 399 kg |
(iii) contingency fuel calculated in accordance with (a)(3);
| 5% x 9 399 kg = 469 kg |
(iv) additional fuel if required, but not less than:
(A) for aeroplanes with reciprocating engines: fuel to fly for 45 minutes; or
(B) for aeroplanes with turbine engines: fuel to fly for 30 minutes at holding speed at 1500 ft (450 m) above the destination alternate aerodrome elevation in standard conditions, this should not be less than final reserve fuel; and
| 30 min x 2750 kg/h = 1375 kg |
(v) extra fuel if required by the commander.
(c)(2) TOTAL: 9399 kg + 469 kg + 1375 kg = 11 243 kg
The highest value is obtained from Calculation (c)(1) => Therefore, Additional fuel = 5500 kg
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