Flight Fuel Decision Aid

CUA Fuel Policy Calculator

EFOD drives decision/minimum timings at destination. Emergency uses estimated fuel after landing at the nearest suitable airport (not necessarily destination or filed alternate).

Fuel situation

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Enter EFOD and landing fuel at nearest suitable to classify.

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Flight input

kg / min

Estimated fuel over destination (EFOD)

Used for decision and minimum fuel vs thresholds after destination (holding burn below).

Holding burn rate

kg per minute — all “time until” values.

Alternate fuel — scenario 1

Alternate fuel (kg)

Alternate fuel — scenario 2

Alternate fuel (kg)

Final reserve (30 min)

kg — part of decision fuel with alternate + lead.

Lead (15 min)

kg — added to decision fuel for “decision + lead”.

Minimum — 30 min at destination (kg)

When holding at destination with alternate fuel available for that hold, compare EFOD to this + lead.

Minimum — 30 min after diversion at alternate (kg)

After landing alternate; timings use estimated fuel overhead alternate (alternate + final reserve).

Estimated fuel on landing — nearest suitable (kg)

Not always destination or planned alternate. Used only for emergency timing.

Emergency — 30 min in tank after landing NS (kg)

If landing fuel NS is below this, emergency applies (policy 30′ at nearest suitable).

Calculated fuel policy

Today

Decision fuel — scenario 1

ALTN + 30′ FR + 15′ lead

Decision fuel

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Decision + lead

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Decision fuel as time

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min

EFOD → decision + lead

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min

EFOD → decision fuel

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min

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Decision fuel — scenario 2

Second alternate

Decision fuel

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Decision + lead

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Decision fuel as time

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min

EFOD → decision + lead

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min

EFOD → decision fuel

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min

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Minimum fuel

30′ + 15′ lead

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At destination (alternate fuel used for holding there)

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30′ minimum (kg)

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Minimum + lead

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EFOD → min + lead

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min

EFOD → 30′ minimum

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min

After diversion — overhead alternate

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Fuel overhead ALTN (est.)

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30′ at ALTN + lead

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Overhead → min + lead

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min

Overhead → 30′ at ALTN

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min

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Emergency fuel (nearest suitable)

30′ after landing NS

Landing fuel at NS

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Required 30′ in tank

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Landing fuel as time

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min

Time until emergency (NS)

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min

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Standard fuel vs time

Holding burn