FA-65935 / Aviation weight and balance / Member archive

Zero fuel limit translated with trip fuel · case 05

Flights carrying reserve or tankered fuel are payload-limited far below the MZFW structural allowance.

Member previewVariant 5 · 3 implementations · 9 checks per implementation

Case contract

Input weights in kg. Allowed takeoff weight = lowest of MTOW, MLW+trip fuel, MZFW+takeoff fuel, MRW-taxi fuel; ties go to the earlier entry in that order. Allowed payload = allowed TOW - OEW - takeoff fuel, floored at 0. Return [allowed TOW, payload, limiting name].

Why this case matters

The classic loadsheet payload limitation takes the lowest of four structural limits, each translated to a takeoff weight with the correct fuel quantity.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
short sector MLW limited	`[62000, 14950, "MZFW"]`	`[63000, 15950, "MLW"]`	Failed

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