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    "story_id": "mp-2026-09-14-009",
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    "position": 9,
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    "section": "safety",
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    "headline": "The Flight Plan Carried an Uncertainty Tube Into the Storm",
    "slug": "the-flight-plan-carried-an-uncertainty-tube-into-the-storm",
    "dek": "A pre-flight framework intersected probabilistic arrival bounds with operator-defined three-dimensional weather hazards.",
    "summary": "A pre-flight framework intersected probabilistic arrival bounds with operator-defined three-dimensional weather hazards.",
    "body_text": "Advanced-air-mobility flight plans must account for uncertainty in where an aircraft will be when a moving weather hazard arrives. This proposed framework fits a kinematic path with NURBS curves, propagates state covariance with a Kalman filter and transforms velocity uncertainty into arrival-time bounds. Gridded weather becomes intensity-stratified polyhedral volumes expanded by aircraft-specific safety buffers. Mesh intersections then test the spatial uncertainty tube and temporal overlap. The paper presents a planning framework rather than an operational validation or certification result, so its value lies in making uncertainty and operator thresholds explicit before flight.",
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    "importance": 7,
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    "first_published_at": "2026-09-14T09:00:00.000-04:00",
    "modified_at": "2026-09-14T09:00:00.000-04:00",
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    "tags": [
      "advanced air mobility",
      "weather hazards",
      "trajectory planning"
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  "sources": [
    {
      "source_id": "source-2026-09-14-009",
      "title": "arXiv preprint 2609.12095",
      "publisher": "arXiv",
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    "title": "The Flight Plan Carried an Uncertainty Tube Into the Storm",
    "publisher": "The Machine Press",
    "published_at": "2026-09-14T09:00:00.000-04:00",
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