Reference only — not for real-world navigation.
WS77
Circle T Airport · Grantsburg
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
895 ft / 273 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
09/27 · 2,215 ft · TurfUNLITFlight Planning
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Welcome to the technical flight briefing for Circle T Airport (WS77), located in Grantsburg, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 1 active runway with a maximum elevation of 895 ft. Please note that this field primarily supports VFR and visual approach procedures.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
Circle T Airport
ICAO / IATA
WS77 / —
Municipality
Grantsburg
Country
Region
US-WI — Wisconsin
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
895 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 09 / 27
UNLIT
Runway Length: 2,215 ft / 675 m
Runway Width: 96 ft / 29 m
Surface Type: Turf
Heading: —° / —°
Runway Width: 96 ft / 29 m
Surface Type: Turf
Heading: —° / —°
RWY 09
No ILS / Visual Only
RWY 27
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026