An aeroplane with reciprocating engines is planning to depart for an isolated destination aerodrome, as a Commercial Air Transport operation. Calculate the minimum amount of fuel required when overhead the isolated aerodrome, considering the following details.
Flight time: 2 hours and 45 minutes
Top of climb to top of descent time: 2 hours
Normal fuel consumption at cruise: 600 kg per hour
Regulation (EU) No 965/2012
CAT.OP.MPA.106 Use of isolated aerodromes — aeroplanes
(b) An isolated aerodrome is one for which the alternate and final fuel reserve required to the nearest adequate destination alternate aerodrome is more than:
45 min x 600 kg/h = 450 kg
18 min x 600 kg/h = 180 kg
450 kg + 180 kg = 630 kg
CAT.OP.MPA.106 Use of isolated aerodromes — aeroplanes
(b) An isolated aerodrome is one for which the alternate and final fuel reserve required to the nearest adequate destination alternate aerodrome is more than:
(1) for aeroplanes with reciprocating engines, fuel to fly for 45 minutes plus 15 % of the flying time planned to be spent at cruising level or two hours, whichever is less; or
(2) for aeroplanes with turbine engines, fuel to fly for two hours at normal cruise consumption above the destination aerodrome, including final reserve fuel.
(2) for aeroplanes with turbine engines, fuel to fly for two hours at normal cruise consumption above the destination aerodrome, including final reserve fuel.
- "for aeroplanes with reciprocating engines, fuel to fly for 45 minutes":
45 min x 600 kg/h = 450 kg
- "plus 15 % of the flying time planned to be spent at cruising level":
18 min x 600 kg/h = 180 kg
450 kg + 180 kg = 630 kg
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