TagRunways(153)

This presentation examines the consequences of runway configuration changes at Seattle-Tacoma International Airport (Sea-Tac), including louder departure noise for Burien residents, reduced airport capacity, and potential FAA workaround taxi routes. It references Seattle Air Traffic Control Tower standard operating procedures for opening and closing runways, and analyzes the feasibility of simultaneous parallel runway operations under FAA Order JO 7110.65. Key technical challenges identified include the need to relocate the Instrument Landing System, extreme ramp congestion, and the possibility of displacing the Runway 34R threshold by approximately 3,400 feet to achieve parallel threshold alignment.

The JEFPO One Departure is an RNAV instrument departure procedure at Seattle-Tacoma International Airport (SEA), available only between 10 PM and 6 AM local time, designed to route departing aircraft northwestward via a series of waypoints toward JEFPO. Aircraft departing runways 34L, 34C, and 34R must climb on a heading of 344° and maintain a minimum climb rate of 500 feet per nautical mile up to 940 feet, then follow specific tracks depending on their runway. Departures from runways 16L, 16C, and 16R are not authorized under this procedure, reflecting noise abatement and air traffic control considerations for the surrounding communities.

The SUMMA TWO Departure (SUMMA2.SUMMA) is a standard instrument departure procedure for Seattle-Tacoma International Airport (SEA) in Seattle, Washington, requiring both RADAR and DME equipment. Aircraft departing on runways 16L, 16C, 16R, 34L, 34C, and 34R follow specific headings and VOR radials through waypoints NEVJO, NEZUG, and SUMMA intersection before proceeding on assigned transitions toward destinations such as Baker City or Lakeview. Takeoff minimums vary by runway, with some requiring minimum climb gradients of up to 580 feet per nautical mile, and top altitude is assigned by ATC up to FL240.