Glideslope Analysis

now than they were a couple of years ago? Sea-Tac Airport Runways Data Analysis • 1 Month of arrival flight track data for each runway end – June 2013 – June 2015 (center runway analysis – April) – June 2017 • June typically has a mix of north and south flow, a mix of Instrument Landing System (ILS) and Visual Approaches with average number of aircraft. • ILS Aircraft have to be established on the glideslope at the last approach fix (as close as 4.5 NM at SEA), but can intercept it farther out. 732 1032 1332 1632 1932 2232 2532 2832 3132 3432 3732 4032 4332 4632 4932 5232 5532 5832 6132 6432 1000 2000 3000 4000 5000 6000 7000 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Nautical Mile Altitude 432 feet Actual average altitude for aircraft at 3 NM _____________________ June 2013 = 1374 feet June 2015 = 1400 feet June 2017 = 1393 feet Nautical Mile El ev at n Runway 16L arrival altitude analysis compared to a degree glideslope 0.00 500.00 1,000.00 1,500.00 2,000.00 2,500.00 200 400 600 800 1000 1200 1400 1600 1800 2000 0.00 500.00 1,000.00 1,500.00 2,000.00 2,500.00 2017 = 2013 = 16L Arrival Altitude Scatter Plot at 3 NM 1300 715 1015 1315 1615 1915 2215 2515 2815 3115 3415 3715 4015 4315 4615 4915 5215 5515 5815 6115 6415 1000 2000 3000 4000 5000 6000 7000 3 4…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]