Montgomery County Airpark

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Montgomery County Airpark
Montgomery County Airpark overview.jpg
The Montgomery County Airpark in 2006
Airport typePublic
OwnerMontgomery County Revenue Authority
LocationGaithersburg, Maryland, U.S.
Elevation AMSL539 ft / 164.3 m
Coordinates39°10′06″N 77°09′57.6″W / 39.16833°N 77.166000°W / 39.16833; -77.166000Coordinates: 39°10′06″N 77°09′57.6″W / 39.16833°N 77.166000°W / 39.16833; -77.166000
GAI is located in Maryland
Location of airport in Maryland / United States
GAI is located in the United States
GAI (the United States)
Direction Length Surface
ft m
14/32 4,202 1,281 Asphalt

Montgomery County Airpark (IATA: GAI, ICAO: KGAI, FAA LID: GAI) is a U.S. public airport located three miles (5 km) northeast of the city of Gaithersburg, in Montgomery County, Maryland.



The airport was built by developer William E. Richardson in 1960.[1] Richardson deeded title to the land to Montgomery County, which leased the land back to Richardson to operate the airport.[1] Richardson planned to operate charter flights and an air taxi to National Airport, Baltimore's Friendship Airport, and the soon-to-be-opened Dulles Airport.[1] The airport was dedicated on October 22, 1960.[2] After having a simple hangar during its first four years of operation, a terminal building was built in 1964.[3]


On July 20, 2001, one of the hijackers in the future September 11 attacks, Hani Hanjour, flew to the Montgomery County Airpark from Fairfield, New Jersey on a practice flight with fellow hijacker Nawaf Alhazmi.[4][5]



Montgomery County Airpark covers 125 acres (51 ha) and has one runway.

  • Runway 14/32: 4,202 x 75 ft. (1,281 x 23 m), Surface: Asphalt. (32 - right traffic)

Navigational aids[edit]

  • WAAS/GPS/RNAV MDA 262 agl
  • VOR 155 degree from FDK 109.0 MDA 600 agl

On-field services[edit]

  • DC Metro Aviation Services
    • Full-service FBO - 100LL JetA
    • Hangar-tiedown rental
  • Charter Operators
    • Open Air Charters - Part 135
  • Flight Schools
    • Fleming Aviation
    • Washington International Flight Academy (WIFA)
  • Aircraft Sales
    • Fleming Aviation
    • Trebor Aviation
  • Designated Pilot Examiner
    • Bob Gawler
  • Food & Beverage
    • Airport Cafe

Flying clubs[edit]

  • Congressional Flying Club[6]
  • Octopus Flying Club
  • Inn Flying Club
  • TSS Flying Club[7]
    • TSS Flying Club was formed in 1957 and remains one of the largest flying clubs in the Washington-Baltimore Region today. TSS has 65 members and 5 well equipped aircraft including two Cessna 172 180hp, Cessna 182S, Cessna 182RG, and a Vans RV12 certified light sport aircraft with glass cockpit.


  1. ^ a b c "New Private Airport Scans the Sky, Optimistic About Boom in Flying". The Washington Post. July 25, 1960. p. 25. ProQuest 141208605.
  2. ^ "$750,000 Airport Dedicated Northeast of Gaithersburg". The Washington Post. October 23, 1960. p. D21. ProQuest 141157629.
  3. ^ "250 Attend Montgomery Airpark Fete". The Washington Post. September 24, 1964. p. E18. ProQuest 142147783.
  4. ^ "Complete 911 Timeline: Hani Hanjour". History Commons. Archived from the original on 2017-08-30.CS1 maint: BOT: original-url status unknown (link)
  5. ^ Final Report of the National Commission on Terrorist Attacks Upon the United States (PDF). 2004. p. 242. Retrieved October 1, 2017.
  6. ^ Patrol, Congressional Flying Club / Montgomery Senior Squadron, Civil Air. "Congressional Flying Club / Montgomery Senior Squadron, Civil Air Patrol > Home".
  7. ^ "TSS Flying Club - Fun, Affordable Flying Club in the Washington DC Area".

Further reading[edit]

External links[edit]