0) Operation & Policy
Airport data: OurAirports. Forecasts: Open‑Meteo. TAF/METAR via your proxy (below). :contentReference[oaicite:0]{index=0}
Module A — Runway Performance
Module B — Trip (Non‑Stop)
1) Data & Inputs (Runway Performance)
AFM/POH Performance Dataset
Auto‑fill from ICAO & Date/Time
Open‑Meteo provides hourly temperature, precipitation probability, visibility and pressure; OurAirports provides runway/elevation. :contentReference[oaicite:1]{index=1}
Airport & Atmospherics
Weight Builder (payload)
Atmospherics
Pressure Altitude
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Density Altitude (approx.)
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Takeoff (AFM)
T/O to 35 ft (ft)
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Accelerate‑Stop (ft)
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Landing (AFM)
Dry LDR (50 ft)
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Wet LDR (AFM or factor)
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Planning
60% (dry)
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115% (wet)
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Arrival Margin
Actual LDR used
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+15% (ft)
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Decision
Runway Available (ft)
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Data sources: OurAirports (airports/runways), Open‑Meteo (forecasts). AviationWeather.gov TAF/METAR is available via their JSON Data API; we use a CORS‑enabled proxy Worker below. :contentReference[oaicite:2]{index=2}