Reference only — not for real-world navigation.
KGON
Groton New London Airport · Groton
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
9 ft / 3 m
Transition Altitude
18,000 ft
Primary Channel
TWR 125.60 MHz (TWR)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Groton New London Airport (KGON), located in Groton, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 2 active runways with a maximum elevation of 9 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
Groton New London Airport
ICAO / IATA
KGON / GON
Municipality
Groton
Country
Region
US-CT — Connecticut
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
9 ft
Official Website
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 05 / 23
ILS EQUIPPEDLIGHTED
Runway Length: 5,000 ft / 1,524 m
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 34° / 214°
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 34° / 214°
RWY 05 (34°)
111.30 MHz
IDENT: GON | CRS: 48°
RWY 23 (214°)
No ILS / Visual Only
Runway 15 / 33
LIGHTED
Runway Length: 4,000 ft / 1,219 m
Runway Width: 96 ft / 29 m
Surface Type: Asphalt
Heading: 135° / 315°
Runway Width: 96 ft / 29 m
Surface Type: Asphalt
Heading: 135° / 315°
RWY 15 (135°)
No ILS / Visual Only
RWY 33 (315°)
No ILS / Visual Only
A/D PROVIDENCE APP/DEP
125.75 MHz
ATIS ATIS
127.00 MHz
CLD CLNC DEL
119.85 MHz
CTAF CTAF
125.60 MHz
GND GND
121.65 MHz
OPS ARNG OPS
126.20 MHz
RDO BRIDGEPORT RDO
122.10 MHz
TWR TWR
125.60 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026