Aerologation

{
  "id": "MLC-T-MET-010351",
  "term": "Aerologation",
  "field": "Meteorology and atmospheric science",
  "definition": "An air navigation method, also called pressure-pattern navigation, that uses the pressure and wind pattern between departure and destination to fly a minimum-time route. The pilot may deviate from the direct course to gain tail winds, as airliners do around a high-pressure system, yet applies one wind correction and holds a single heading. That correction comes from the pressure difference between the two ends, a formula proposed by John Bellamy.",
  "synonyms": [
    "single-grid heading"
  ],
  "see_also": [
    "single drift correction"
  ],
  "url": "https://mlchart.com/terminology/meteorology/aerologation/"
}