Reference only — not for real-world navigation.
KRYY
Cobb County International Airport-McCollum Field · Atlanta
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
1,040 ft / 317 m
Transition Altitude
18,000 ft
Primary Channel
TWR 125.90 MHz (MC COLLUM TWR)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
09/27 · 6,305 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Cobb County International Airport-McCollum Field (KRYY), located in Atlanta, 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 1,040 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
Cobb County International Airport-McCollum Field
ICAO / IATA
KRYY / —
Municipality
Atlanta
Country
Region
US-GA — Georgia
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
1,040 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 09 / 27
ILS EQUIPPEDLIGHTED
Runway Length: 6,305 ft / 1,922 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 88.8° / 268.8°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 88.8° / 268.8°
RWY 09 (88.8°)
No ILS / Visual Only
RWY 27 (268.8°)
111.90 MHz
IDENT: RYY | CRS: 273°
A/D ATLANTA APP/DEP
121.00 MHz
AWOS AWOS 3
128.13 MHz
CTAF CTAF
125.90 MHz
GND GND
119.00 MHz
TWR MC COLLUM TWR
125.90 MHz
UNIC UNICOM
122.70 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026