Montgomery County Airpark
GAI · KGAI · Gaithersburg, MD · Non-towered · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:47 PM
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:42 AM | 09:42Z |
| Sunrise | 06:11 AM | 10:11Z |
| Sunset | 08:18 PM | 00:18Z |
| Evening civil twilight Loggable night begins | 08:47 PM | 00:47Z |
Plan a flight from KGAI
Past 24 hours category · wind · ceiling · visibility trends
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Density altitude today projected curve · departure window · takeoff roll
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 14LEFT traffic
- Heading
- 137° mag · 128° true
- Dimensions
- 4,202 × 75 ft
- TPA
- 1,500 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 4-light PAPI (left) (3°)
- CTAF
- 123.075
Enter the left downwind (heading 317°) on the 45° at 1,500 ft MSL (≈1,000 AGL).
More details — RWY 14
- Threshold elev
- 493 ft
- Markings
- nonprecision
- Threshold crossing height
- 40 ft
- TDZ elevation
- 520 ft
- End lights
- REIL
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 14/32 | 4,202 ft |
Prefer one flat page? Full runway details for KGAI → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the KGAI kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
Taxi & takeoff
Departure & arrival
“Potomac”ATC assigns the exact frequency (in your clearance or on handoff) — which one depends on your SID (departing) or STAR (arriving).
By procedure & sector (4 frequencies)
| Frequency | Used by |
|---|---|
| 126.75 | TRSTN STAR |
| 128.7 | TERPZ DP |
| 307.2 | TRSTN STAR |
| 307.9 | APCH/P DEP/P · TERPZ DP |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
FDK 116.85 · DCA 111.00 · AML 113.50 · +4
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| FDK · Frederick | VOR/DME | 116.85 · 115Y | Low | r154° / 17.6 NM |
| DCA · Washington | VOR/DME | 111.00 · 47X | Low | r351° / 19.5 NM |
| AML · Armel | VOR/DME | 113.50 · 82X | Low | r053° / 19.8 NM |
| EMI · Westminster | VORTAC | 117.90 · 126X | High | r212° / 21.5 NM |
| BAL · Baltimore | VORTAC | 115.10 · 98X | Low | r281° / 23.5 NM |
| ADW · Andrews | VORTAC | 113.10 · 78X | Low | r337° / 25.8 NM |
| OTT · Nottingham | TACAN | 113.70 · 84X | — | r335° / 34 NM |
Prefer one flat list? All KGAI frequencies →
Charts & procedures
Lowest minimums here: RNAV (GPS) with vertical guidance · VFR sectional →
Airport info
From the field
Do you run KGAI, or an FBO, flight school, or shop on it? Claim your listing to keep fuel, fees, hours, and services current.
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 · 1-800-WX-BRIEF
- 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
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 under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- 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 2 contacts
Remarks FAA · 16 notes
General
- 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.
Lighting
- ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF. PAPI RWY 14 & 32 OPR CONSLY.
Fuel
- FUEL TRUCK AVBL 0800-2000; REQUEST ON 122.85. SELF-SERVE 100LL AVAILABLE WITH CREDIT CARD.
Obstructions
- 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.
Contact
- EXT. 1011
Attendance
- UNATNDD CHRISTMAS DAY. FOR AFT HRS SVC CALL 301-963-8043.
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More widgets — crosswind, E6B, density altitude — on the embed page.
Nearby airports
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Also nearby: W50 Davis Airstrip (5 NM) · 2MD3 Fly Away Farm Airport (9 NM) · MD46 Glenair Airport (private) (10 NM) · MD77 Flying M Farms Airport (10 NM) · MD47 Barnes Airport (private) (10 NM) · MD75 Stolcrest STOLport (private) (12 NM)
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 in the Comms & NavAids section.
What is the longest runway at KGAI?
Montgomery County Airpark has 1 runway; the longest is 4,202 ft. See the Runways section 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.
Fly out of KGAI often?
Save KGAI as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
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.