Montgomery County Airpark

GAI · KGAI · Gaithersburg, MD · 539 ft elevation · var 9W · Non-towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

ICAO / IATA: KGAI / GAI
Coordinates: 39.1683, -77.1660
Elevation: 539 ft MSL
Magnetic variation: 9W
Sectional chart: WASHINGTON
Airport use: Public
Control tower: No
Weather station: AWOS-3PT · 128.275 · ☎ 301-977-2971
ARTCC: WASHINGTON (ZDC)
Flight service (FSS): LEESBURG
NOTAM facility: DCA
Attendance: MARCH-MAY ALL 0800-1900; JUNE-SEPTEMBER ALL 0800-2000; OCTOBER-FEBRUARY ALL 0800-1800
Beacon: white-green (SS-SR)
Segmented circle: Yes
Activated: 1960/08
Distance from city: 3 NE

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-21

Event	Local (EDT)	UTC
Morning civil twilight Loggable night ends	05:10 AM	09:10Z
Sunrise	05:43 AM	09:43Z
Sunset	08:38 PM	00:38Z
Evening civil twilight Loggable night begins	09:10 PM	01:10Z

Loggable night (§1.1)

09:10 PM → 05:10 AM

Night currency (§61.57)

09:38 PM → 04:43 AM

Plan a flight from KGAI

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Night operations

Airport lighting: SEE RMK
Rotating beacon: white-green · SS-SR
Pilot-controlled lighting: ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF. PAPI RWY 14 & 32 OPR CONSLY. on 123.075 — Chart Supplement ↗

Runway lighting aids — 14: 4-light PAPI (left) · 32: 4-light PAPI (left).

FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.

Traffic pattern

Landing runway

LEFT traffic

Landing: Rwy 14 · 136°
Pattern: left (turns left)
TPA: 1,500 ft MSL (≈1,000 AGL)
CTAF: 123.075

Enter the left downwind for Rwy 14 at 1,500 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

Runway 14/32

4,202 ft × 75 ft · Asphalt (Good)

Edge lights: Med.

Heading: 136° mag · 127° true
Markings: nonprecision
VGSI: 4-light PAPI (left) (3°)
Traffic pattern: Left
Approach obstacle: Trees, 44 ft, 1,406 ft from threshold, 197 ft L of centerline — 27:1 slope to clear
End lights: REIL

Heading: 316° mag · 307° true
Markings: nonprecision
VGSI: 4-light PAPI (left) (3.25°)
Traffic pattern: Right
Approach obstacle: Trees, 24 ft, 978 ft from threshold, 190 ft L of centerline — 32:1 slope to clear
End lights: REIL

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
14/32	4,202 ft

Communication frequencies

Service	Frequency	Notes
CTAF	123.075	ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF. PAPI RWY 14 & 32 OPR CONSLY.
UNICOM	123.075
GAI AWOS-3PT	128.275
CD/P	121.6
TRSTN STAR	126.75
APCH/P DEP/P	128.7
TERPZ DP	128.7
TRSTN STAR	307.2
APCH/P DEP/P	307.9
TERPZ DP	307.9

Source: FAA NASR (current 28-day cycle).

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
FDK · Frederick	VOR	109.00	r154° / 17.6 NM
DCA · Washington	VOR-DME	111.00	r351° / 19.5 NM
AML · Armel	VORTAC	113.50	r053° / 19.8 NM
EMI · Westminster	VORTAC	117.90	r212° / 21.5 NM
BAL · Baltimore	VORTAC	115.10	r281° / 23.5 NM
ADW · Andrews	VORTAC	113.10	r337° / 25.8 NM
OTT · Nottingham	VORTAC	113.70	r335° / 34 NM

Procedures at a glance

Lowest mins: RNAV (GPS) · vertical guidance Takeoff mins / ODP ↗ Non-std alternate mins ↗

Approaches2

Departures

Arrivals

Minimums & Hot Spots

Chart Supplement FAA A/FD

Open PDF ↗

Preview Chart Supplement

VFR sectional

Open KGAI on the VFR sectional (SkyVector) ↗

Services

Fuel available: 100LL, Jet A
Bottled oxygen: LOW
Bulk oxygen: NONE
Airframe service: MINOR
Powerplant service: MAJOR
Parking: tiedowns, hangars
Other services: Air freight, Avionics, Charter, Instruction, Rental, Aircraft sales

Ownership & management

Owner

MONTGOMERY COUNTY REV AUTH

101 MONROE ST 4TH FLOOR, SUITE 410, ROCKVILLE, MD

301-762-9080

Manager

JUSTIN BOLLUM, C.M.

7940 AIRPARK ROAD, SUITE 410, GAITHERSBURG, MD

301-978-7009

Remarks FAA

THIS AIRPORT HAS BEEN SURVEYED BY THE NATIONAL GEODETIC SURVEY.
NOISE ABATEMENT DEP RWY 32; TURN RIGHT TO AT LEAST 340 DEGS; JETS REFRAIN FROM RWY 32 TAKEOFF BTWN 2300-0700.
DEER & BIRDS ON & INVOF ARPT.
HELICOPTERS REFRAIN FM AIR TAXI OVER PAVED PARKING RAMPS.
RWY 14 HAS 30 FT DOWNSLOPE 75 FT L/R OF CNTRLN AT THR TO 150 FT BOTH SIDES.
ARPT NOT RECOMMENDED FOR ACFT WITH WINGSPAN IN EXCESS OF 79 FT & GROSS WT IN EXCESS OF 48000 POUNDS.
SOUTH RAMP NOT RECOMMENDED FOR AIRCRAFT WITH WINGSPAN GREATER THAN 79 FT OR WEIGHT GREATER THAN 40000 LBS.
BE ALERT SFRA PROCEDURES IN EFFECT.
PREFERRED CALM WIND RWY 14.
FOR CD CTC POTOMAC APCH AT 866-429-5882.
RWY 32 PAPI BAFFLED BYD 5 DEG L OF CRS DUE TO BLDG.
ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF. PAPI RWY 14 & 32 OPR CONSLY.
1000 FT AGL (1539 FT MSL) TURBINE AND JET 1500 FT AGL (2039 FT MSL) HELICOPTERS 800 FT AGL (1339 FT MSL).
UNATNDD CHRISTMAS DAY. FOR AFT HRS SVC CALL 301-963-8043.
EXT. 1011
FUEL TRUCK AVBL 0800-2000; REQUEST ON 122.85. SELF-SERVE 100LL AVAILABLE WITH CREDIT CARD.
RWY 14, 47 FT TREES, 169 FT R, 195 FT FM THR.
RWY 32 HAS +15 FT RIDGE PARALLEL TO RWY 155 FT L; +6FT FENCE PARALLEL TO RWY 180 FT R.

Nearby airports

W50 · Davis Airstrip (5 NM)2MD3 · Fly Away Farm Airport (9 NM)MD46 · Glenair AirportPrivate (10 NM)MD77 · Flying M Farms Airport (10 NM)MD47 · Barnes AirportPrivate (10 NM)MD75 · Stolcrest STOLportPrivate (12 NM)

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KGAI in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.

About KGAI

Montgomery County Airpark (GAI · KGAI) is an airport in Gaithersburg, MD, at 539 ft MSL. It has 1 runway, the longest 4,202 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KGAI, refreshed from the Aviation Weather Center and FAA NASR.

Does KGAI have a control tower?

No. Montgomery County Airpark is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.

What is the longest runway at KGAI?

Montgomery County Airpark has 1 runway; the longest is 4,202 ft. See the Runways tab for headings, surface, and lighting.

Where is KGAI?

Montgomery County Airpark is in Gaithersburg, MD, at an elevation of 539 ft MSL. Coordinates: 39.1683, -77.1660.

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