Knox County (4I3)
Non-towered public-use airport serving Mount Vernon, Ohio, at 1,192 ft elevation.
Elevation1,192 ft
ControlNon-towered
Longest runway5,504 ft
Magnetic variation6° W
On the field: flight training, aircraft rental (as listed in FAA data). Find flight schools in Ohio.
Live weather
Forecast (TAF)
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Frequencies
| AWOS/ASOS | 126.05 |
|---|---|
| CTAF | 123.05 |
| UNICOM | 123.05 |
| Clearance delivery | 119.45 |
| Approach/Departure | 125.95 Columbus |
Runways
| Runway | Size | Surface | Lights |
|---|---|---|---|
| 10/28 | 5,504 × 100 ft | Asphalt | Medium intensity |
Fuel: 100LL, A+. Traffic pattern altitude: 808 ft AGL. Sectional: Detroit.
Runway diagram
Drawn to scale from FAA runway-end data, true north up. Not for navigation: use the official FAA airport diagram and Chart Supplement.
Nearby airports
6G4Wynkoop3 NM NE6CMChapman Memorial Field10 NM WKVTALicking County Regional19 NM S4I9Morrow County19 NM NWKCMHJohn Glenn Columbus International26 NM SW7B4Miller Farm Landing Strip27 NM S
Before you fly here
- Read the FAA Chart Supplement entry for 4I3: traffic pattern, CTAF/UNICOM, hours, fuel and remarks.
- Check NOTAMs and get a weather briefing at 1800wxbrief.com.
- Study the airport diagram and the sectional around 4I3 for airspace and terrain.
- More detail: AirNav · SkyVector
Airport data from the FAA National Airspace System Resource (NASR) subscription effective Oct 1, 2026; magnetic variation as published for 1990. Weather is live from aviationweather.gov. Always confirm with current official sources before flight. This guide is a study aid.