FA-65944 / Aviation weight and balance / Member archive

Tied structural limits report the later limit name · case 04

When MTOW equals the landing-derived limit the loadsheet names MLW as limiting.

Member previewVariant 4 · 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
MTOW and MLW tie	`[68000, 14000, "MLW"]`	`[68000, 14000, "MTOW"]`	Failed

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