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How we grade

White Contrails is an AI-assisted, human-supervised aviation news service. This page explains exactly how stories are sourced, scored, summarised, and corrected — because if we ask for your trust, you deserve to see the machinery.

Where stories come from

We monitor official and specialist sources continuously: manufacturer press rooms (Airbus, Boeing), regulators (FAA, EASA), wire services and aviation trade press. Sources are tiered by reliability — primary sources (the company or regulator itself) rank above specialist journalism, which ranks above aggregators. Content farms are excluded. Stories covered by only a single non-primary source are displayed one grade lower until a second source corroborates.

First-hand material is labelled on every card: 🏛 Official statement for regulators, 🏛 Company statement for manufacturer press releases — accurate on facts, but remember the author's interest.

The A–F scale

GradeMeaningExample
ALandmark / historicCrewed Moon mission, first flight of a major aircraft, landmark court ruling
BSignificant industry shiftMajor bankruptcy, large fleet order, production-rate breakthrough
CProject milestoneCertification phase cleared, plant opening, notable partnership
DRoutine transactionStandard orders, route launches, lease deals
EMinor updatePersonnel moves, local events — archived, not displayed
FNoiseClickbait, speculation, celebrity jets — discarded

Grades are assigned by an AI model against written criteria (including quantitative thresholds for financial size and operational disruption), validated by a regression test suite, and audited by a human editor who can override any grade. When an editor overrides, the card shows an "Editor's grading note" instead of the AI rationale — click the ⓘ Why grade…? line on any card to read the reasoning.

How summaries are written

What the AI does: fetches, clusters duplicate coverage, grades against our criteria, and drafts summaries.
What humans do: set the criteria, audit grades weekly against a fixed test set, override mistakes, choose what leads, and write the Monday Briefing entirely by hand.

Data pages

Our Orders & Deliveries page uses official manufacturer figures only — Airbus's published monthly reports and Boeing's official dataset. Monthly numbers are derived from each manufacturer's own cumulative totals, so restatements correct themselves. Each figure shows its "as of" month; the two manufacturers publish on different schedules.

Corrections

When we get something wrong, we fix it and say so. Corrections are noted on the story and logged. To report an error: editor@whitecontrails.com — we read everything.

Independence

White Contrails accepts no payment for coverage, placement, or grades. If that ever changes (e.g. clearly-labelled sponsorship), it will be disclosed here first.