Reference only — not for real-world navigation.
KGRB
Austin Straubel International Airport · Green Bay
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
695 ft / 212 m
Transition Altitude
18,000 ft
Primary Channel
TWR 118.70 MHz (GREEN BAY TWR)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
18/36 · 8,201 ft · ConcreteLIGHTED06/24 · 7,700 ft · ConcreteLIGHTED12/30 · 3,198 ft · AsphaltUNLITFlight Planning
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Welcome to the technical flight briefing for Austin Straubel International Airport (KGRB), located in Green Bay, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 3 active runways with a maximum elevation of 695 ft. Instrument approaches (IFR) are supported with verified ILS frequencies and identifiers for precision landings.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
Austin Straubel International Airport
ICAO / IATA
KGRB / GRB
Municipality
Green Bay
Country
Region
US-WI — Wisconsin
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
695 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 18 / 36
ILS EQUIPPEDLIGHTED
Runway Length: 8,201 ft / 2,500 m
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 179.9° / 359.9°
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 179.9° / 359.9°
RWY 18 (179.9°)
No ILS / Visual Only
RWY 36 (359.9°)
109.90 MHz
IDENT: SGZ | CRS: 2°
Runway 06 / 24
ILS EQUIPPEDLIGHTED
Runway Length: 7,700 ft / 2,347 m
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 59.9° / 239.9°
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 59.9° / 239.9°
RWY 06 (59.9°)
109.50 MHz
IDENT: GRB | CRS: 62°
RWY 24 (239.9°)
No ILS / Visual Only
Runway 12 / 30
UNLIT
Runway Length: 3,198 ft / 975 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 118.3° / 298.3°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 118.3° / 298.3°
RWY 12 (118.3°)
No ILS / Visual Only
RWY 30 (298.3°)
No ILS / Visual Only
APP GREEN BAY APP
119.40 MHz
ATIS ATIS
124.10 MHz
CLD CLNC DEL
121.75 MHz
CTAF CTAF
118.70 MHz
DEP GREEN BAY DEP
126.55 MHz
GND GND
121.90 MHz
RDO GREEN BAY RDO
122.20 MHz
TWR GREEN BAY TWR
118.70 MHz
UNIC UNICOM
122.95 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026