• 2020-09-03 22:45

    Flow and Flight Tracks

    A set of daily tracks from March 1 to March 18, 2018, giving a representation of North Flow and South Flow departure and arrivals. To make sense of these we suggest reading our article on runways and flow. People who complain about the flight concentration immediately notice the pattern to ‘the funnel’, ie. the points
  • 2018-06-15 21:34

    Runways

    Intro Sea-Tac is a Category IIIb certified airfield, allowing operations in all but the worst conditions, 24/7/365. There are three runways in the modern configuration beginning in 1956: Position Year Built North End/South End Length (feet) 1 East 1961 16L 34R 11,901 2 Center 1970 16C 34C 9,426 3 West 2004 16R 34L 8,500 Runways