FSI - BASIC NAVAID DATA

TRAIL FAN MARKER

FORT SILL, OK

Official Navaid Ident: FSI

GEOGRAPHICAL DATA

34-46-52.945N (34.78137361) / 098-24-08.296W (-98.40230444)

Variation: 09E (1965)

NAVAID CLASS CODE(S)/EXTENDED DATA

Radio Identifier: DASH DOT DASH

Fan Marker Type: E

Radio Voice Call: NONE

Hours of Operation: 24

Associated ARTCC: FORT WORTH

Voice Ident: NO

Monitoring Category:

Internal monitoring plus a status indicator installed at control point.

(Reverts to a temporary category 3 status when the control point is not manned.)

Pitch Point: N

Catch Point: N

ADMINISTRATIVE INFORMATION

Effective Date: 9/3/2026

Responsible FAA Region: ASW

Country: UNITED STATES

Owner Name: R-US ARMY

Operator Name: R-US ARMY

Common System Usage: Y

Public Use: Y

Controlling FSS: MLC - (MC ALESTER)

Controlling FSS Hours: 24

Notam Code: FSI