DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Seattle TRACON
825 S. 160th St.
Burien, WA 98148

Issued: 02/03/2021 2232 (UTC) Effective: 02/14/2021 1200 (UTC)
Seattle TRACON Letter to Airmen: LTA-S46-21
****Expired****

Subject: WARNING FOR GLIDER ACTIVITY IN THE VICINITY OF TIGER MOUNTAIN

Cancellation: 02/14/2023 1200 (UTC)

Background:  The purpose of this Notice is to inform pilots landing/departing from Boeing Field/ King County International Airport (BFI), Seattle-Tacoma International Airport (SEA), or Renton Municipal Airport (RNT) of frequent paragliders and hang gliders in the vicinity of Tiger Mountain.

The launch and recovery area used for this purpose is depicted on the Seattle VFR Terminal Area Chart, and is located beneath Class B airspace. Glider pilots are aware of and comply with all FAA regulations regarding airspace use. Glider activity is dependent upon prevailing weather conditions, but no notification is provided to Air Traffic Control (ATC) or to local aviators in the form of NOTAMs when the area is in use, and glider activity is invisible to radar used by ATC.

FAA regulations do not require turbojet aircraft to be contained within Class B airspace when the destination is not the primary airport (SEA). ATC, for the purposes of efficiency and orderly sequencing, may vector BFI, RNT, and on rare occasions SEA traffic, through this area without knowing the status of glider activities within. It is incumbent upon the pilot to maintain extra vigilance when transiting this area during visual meteorological conditions.

INFORMATION:

  • Site is paid for, managed and maintained by the Northwest Paragliding Club.
  • Site is usable year round, most often from April through August.
  • Thermal activity allowing higher altitude soaring is prevalent in afternoons.
  • Launch and primary operating area is approximately the BFI 083 radial, 12NM and the SEA 061 radial, 13NM. However, routes North, East, and South of this area are common.
  • North Launch: Elevation: 1,830'  Lat Long Coordinates: 47°29'58"N  122°00'30"W
  • South Launch: Elevation: 1,680'  Lat Long Coordinates: 47°29'48"N  122°00'38"W
  • Landing Zone: Elevation: 180'     Lat Long Coordinates: 47°30'02"N  122°01'19"W

If you have any questions or concerns, please contact the manager or designee of one of the facilities listed below during normal business hours.

Seattle Terminal Radar Approach Control: (206) 214-4643

Seattle Airport Traffic Control Tower: (206) 214-2500

Boeing Field Airport Traffic Control Tower: (206) 658-6400

Renton Federal Contract Tower: (206) 764-6632

Northwest Paragliding Club Board of Directors: flybod@NWParagliding.com

 


Ben Loeb
Air Traffic Manager, Seattle TRACON