| Knox County Airport 4I3 (Mount Vernon, OH) Class G: untowered Elevation: 1191 TPA: 808 AGL 2000 MSL
Chart Supplement (pdf version) MOUNT VERNON
KNOX CO (4I3)
4 SW UTC–5(–4DT) N40º19.73´ W82º31.56´
1192 B TPA—2000(808)
RWY 10–28: H5504X100 (Grooved Asphalt) S–55, D–100 MIRL NOTAM FILE 4I3 SERVICE: S4 FUEL 100LL, JET A+
LIGHTING ACTIVATE Runway End Identifier Lights Runway 10 and
Runway 28; MIRL Runway 10–28—CTAF. PAPI Runway 10 and Runway 28 operating
continuously.
AIRPORT REMARKS: Attended Monday–Friday 1200–2200Z‡, Saturday–Sunday 1400–2200Z‡. Deer, birds, and other wildlife on and in the vicinity of airport. Fuel available 24 hour self service via credit card. 24 hour prior notice for attendence after hours—Call airport manager. AIRPORT MANAGER: 740-397-9647 WEATHER DATA SOURCES: AWOS–3PT 126.05 (740) 397–6297. COMMUNICATIONS: CTAF/UNICOM 123.05 APPLETON RCO 122.1R 116.7T (DAYTON RADIO)
® COLUMBUS APPROACH/DEPARTURE CONTROL 125.95 CLEARANCE DELIVERY 119.45
RADIO AIDS TO NAVIGATION: NOTAM FILE DAY. APPLETON (VH) (H) VORTAC 116.7
APE Chan. 114 N40º09.06´
W82º35.30´
VOR unusable:
025º–030º
021º 11.0 NM to field. 1354/6W.
TACAN AZIMUTH unusable:
075º–095º
110º–115º
DME unusable:
075º–080º
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Database updated: 2026/03/19