Fuel planning (18/19/20-07-18) Flashcards
What is taxi fuel?
The fuel required to start an aircraft and taxi to the holding point on the rwy
What is trip fuel?
The fuel required to TO and perform ONE approach and landing at the destination A/D
What is contingency fuel?
The fuel for unforeseen variations in the flight plan such as weather differences or level changes
What is the basic procedure for calculating contingency fuel?
It is the lowest of:
A) 5% of trip fuel/remainder of trip fuel (no enroute alternate is required in this case)
B) not less than 3% trip fuel/remainder of trip fuel (alternate is required in this case)
C) an amount for 20 mins of flying
D) an amount based on stats
Then the highest between the lowest option and:
E) an amount to fly for 5 mins at holding speed at 1500ft above destination A/D in ISA
How are options for an enroute alternate calculated?
A/D possibilities must be in a circle of radius equal to 20% of the planned route distance and centred at the highest distance away from the destination between:
25% planned route distance
or
20% planned route distance + 50nm
What is alternate fuel?
The fuel required to perform full missed approach at destination, travel to the alternate and then perform ONE approach and landing at the alternate
When is an alternate A/D not required?
ALL OF THE FOLLOWING
Flight is less than 6 hours
2 separate rwys are available with weather valid one hour either side of arrival time
the forecast vis is greater than 5km
The ceiling is at least 2000ft or circling minima + 500ft
What is final reserve fuel?
Fuel required to fly at holding speed above destination A/D for:
30mins for a jet
45 mins for a piston
What is additional fuel?
If no alternate is selected then additional fuel must allow the A/C to fly at holding speed for an additional 15mins at 1500ft above the destination A/D in ISA
What is extra fuel?
Extra fuel put on A/C at discretion of the commander
What is the memory aid for fuels categories?
Taxi Trip (to the) CAFAE
What fuel flow is used when calculating the time that can be flown with contingency fuel?
fuel flow for trip fuel
What is uplift?
Fuel to be added to the A/C
Describe the advanced reduced contingency fuel procedure
contingency fuel taken is the highest of:
%5 of remaining trip fuel from DP to destination
5% of trip fuel from departure to destination 2 (refueling point)
What kind of destination does a PDP procedure involve?
isolated airfields (islands)
What is the purpose of a reduced contingency fuel procedure?
a refueling destination is chosen in order to reduce the amount of fuel that must be carried for a particular flight.
describe the PDP procedure for a turbine A/C.
addtional fuel is the highest of:
fuel to fly for 2 hours at normal cruise above destination
fuel to fly for 30 mins at holding speed, 1500ft above the destination alternate in ISA
describe the PDP procedure for a reciprocating engine A/C.
the additional fuel to be taken is the highest of:
fuel to fly for 45 mins plus 15% of the cruising flight time or 2 hours, whichever is less
fuel to fly for 45mins
