Reference only — not for real-world navigation.
KGAI
Montgomery County Airpark · Gaithersburg
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
539 ft / 164 m
Transition Altitude
18,000 ft
Primary Channel
CLD 121.60 MHz (POTOMAC CLNC DEL)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
14/32 · 4,202 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Montgomery County Airpark (KGAI), located in Gaithersburg, 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 539 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
Montgomery County Airpark
ICAO / IATA
KGAI / GAI
Municipality
Gaithersburg
Country
Region
US-MD — Maryland
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
539 ft
Official Website
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 14 / 32
LIGHTED
Runway Length: 4,202 ft / 1,281 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 127.4° / 307.4°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 127.4° / 307.4°
RWY 14 (127.4°)
No ILS / Visual Only
RWY 32 (307.4°)
No ILS / Visual Only
A/D POTOMAC APP/DEP
128.70 MHz
AWOS AWOS 3
128.28 MHz
CLD POTOMAC CLNC DEL
121.60 MHz
UNIC CTAF/UNICOM
123.08 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026