FA-66254 / Aviation weight and balance / Member archive

Oil quarts converted with the per-gallon weight · case 04

The drained-oil correction is four times too heavy.

Member previewVariant 4 · 3 implementations · 8 checks per implementation

Case contract

Input {'scales':[[position, reading lb, tare lb, arm]],'unusable_gal','fuel_arm','oil_qt','oil_arm','oil_drained'}. Aircraft weighed defueled, so unusable fuel (6.0 lb/gal) is added; full oil (1.875 lb per quart) is added only if the oil was drained for weighing. Return [basic empty weight r1, arm r2].

Why this case matters

A weighing report derives basic empty weight from net scale readings, then adjusts for fluids to the defined empty-weight configuration.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
defueled oil drained	`[1705.0, 45.26]`	`[1660.0, 46.87]`	Failed

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