Reference only — not for real-world navigation.
KMDQ
Madison County Executive Airport-Tom Sharp Jr Field · Huntsville
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
756 ft / 230 m
Transition Altitude
18,000 ft
Primary Channel
AWOS 120.00 MHz (AWOS 3)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
18/36 · 5,008 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Madison County Executive Airport-Tom Sharp Jr Field (KMDQ), located in Huntsville, 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 756 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
Madison County Executive Airport-Tom Sharp Jr Field
ICAO / IATA
KMDQ / —
Municipality
Huntsville
Country
Region
US-AL — Alabama
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
756 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 18 / 36
ILS EQUIPPEDLIGHTED
Runway Length: 5,008 ft / 1,526 m
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 181° / 1°
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 181° / 1°
RWY 18 (181°)
109.75 MHz
IDENT: MDQ | CRS: 185°
RWY 36 (1°)
No ILS / Visual Only
A/D HUNTSVILLE APP/DEP
125.60 MHz
AWOS AWOS 3
120.00 MHz
RDO HUNTSVILLE RDO
121.72 MHz
UNIC CTAF/UNICOM
123.00 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026