Knox County Airport (4I3)
Knox County Airport (4I3)
4I3
Knox County Airport (4I3)
Mount Vernon, OH
Latest photos of Knox County Airport (4I3)
Bob Simmermon
Bob Simmermon
| FAA Information Effective | 2026-07-09 |
| Airport Identifier | 4I3 |
| Airport Status | Operational |
| Longitude/Latitude |
82°31'33.8540"
W /
40°19'44.0820"
N -82.526071 / 40.328912 (Estimated) |
| Elevation | 1191.60 ft / 363.20 m (Surveyed) |
| Land | 386 acres |
| From nearest city | 4 nautical miles SW of Mount Vernon, OH |
| Location | Knox County, OH |
| Magnetic Variation | 06W (1990) |
| Airport Use | Open to public |
| Wind indicator | Yes |
| Segmented Circle | No |
| Control Tower | NON-ATCT |
| Lighting Schedule | SEE RMK |
| Beacon Color | White-Green (lighted land airport) |
| Landing fee charge | No |
| Sectional chart | DETROIT |
| Region | AGL - Great Lakes |
| Traffic Pattern Alt | 808 ft |
| Responsible ARTCC | ZID - INDIANAPOLIS |
| Tie-in FSS | CLE - CLEVELAND |
| FSS on Airport | No |
| FSS Toll Free | 1-800-WX-BRIEF |
| NOTAMs Facility | 4I3 (NOTAM-d service available) |
Runway 10/28
| Dimensions | 5504 x 100 ft (1678 x 30 m) |
| Surface | ASPH (GOOD) |
| Surface treatment | Saw-cut or plastic Grooved |
| Edge lights | Medium |
| 10 | 28 | |
|---|---|---|
| Alignment | 98° | 278° |
| Physical elevation | 1187.30 ft | 1184.40 ft |
| Coordinates | 40.329922 / -82.535852 | 40.327901 / -82.516290 |
| Traffic pattern | Left | Left |
| Runway marking | Non-precision instrument , Good Condition | Non-precision instrument , Good Condition |
| VGSI | 4-light PAPI on left | 4-light PAPI on left |
| Runway end lights | Yes | Yes |
| CL lights | No | No |
| TDZ lights | No | No |