Terminal Procedures

4I3 — Knox County

MOUNT VERNON, OH · 5 FAA charts · cycle 6 Aug 2026

Elevation 1,191 ft1 runwayLongest 5,504 ftNon-toweredFuel 100LL avgas, Jet A+Volume EC-2Not for navigation

3 published instrument approaches: 2 RNAV (GPS), 1 VOR, serving 2 runway ends.

All 5 4I3 charts in one download Every approach, departure, arrival and minimums page for this airport, sorted into folders, as a single ZIP. Taken one at a time on the free tier, 5 charts is roughly 31 sec of downloading — they queue one behind another.
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Instrument approach procedures

ChartAmendment
RNAV (GPS) RWY 10 chart previewRNAV (GPS) RWY 101CPDF
RNAV (GPS) RWY 28 chart previewRNAV (GPS) RWY 281DPDF
VOR-A chart previewVOR-A8BPDF

Takeoff and alternate minimums

ChartAmendment
TAKEOFF MINIMUMS chart previewTAKEOFF MINIMUMSPDF
ALTERNATE MINIMUMS chart previewALTERNATE MINIMUMSPDF

Minimums pages cover a whole volume, so the same document is shared by every airport in it.

4I3 airport information

Control tower
No
Attendance
All mon-fri 0700-1700
ARTCC
Indianapolis Center
Flight service
Cleveland
NOTAM facility
4I3 (NOTAM-D available)
Magnetic variation
6W
Traffic pattern altitude
808 ft
Beacon
White-green (lighted land airport), sunset to sunrise
Wind indicator
Lighted
Fuel
100LL avgas, Jet A+
Airframe service
Major
Powerplant service
Major
Bottled oxygen
None
Parking
Tie-downs
Customs
Landing rights airport
Airport area
386 acres
Ownership
Publicly owned
Sectional
Detroit
Last FAA inspection
2023-08-02

From the FAA NASR 28-day subscription, cycle 6 Aug 2026.

4I3 radio frequencies

ServiceFrequencyCall sign
CTAF123.05
Clearance delivery119.45Columbus
Approach125.95Columbus

Civil VHF frequencies from the FAA NASR 28-day subscription. Discrete sector and military frequencies are not listed.

Runways

5,504 × 100 ft1028N1,000 ft
Runway layout at 4I3, drawn to scale from FAA published runway-end coordinates and true alignments. Runways served by an ILS are highlighted.
RunwayLengthWidth SurfaceLighting
10/285,504 ft100 ftAsphalt GoodMedium intensity
  10 98°TPAPI (4-box) 3°
  28 278°TPAPI (4-box) 3°

Runway and approach-aid data from the FAA NASR 28-day subscription.

Where 4I3 is

Latitude, longitude40.3289120, -82.5260710
Elevation1,191 ft
From Mount Vernon4 nm SW

Paste the coordinates into a simulator’s world map to drop straight onto the field.

FAA remarks for 4I3

  • DEER, BIRDS, & OTR WILDLIFE ON & INVOF ARPT.
  • ACTVT REIL RWY 10 & 28; MIRL RWY 10/28 - CTAF. PAPI RWY 10 & 28 OPR CONSLY.
  • 24 HR PN FOR ATNDNC AFT HRS - CALL AMGR.
  • KNOXAIRPORT@EMBARQMAIL.COM.

Published verbatim from the FAA NASR subscription. Abbreviations are the FAA's own.

Airports near 4I3

IDAirportCity DistanceCharts
KVTALicking County RgnlNEWARK, OH19 nm S6
4I9Morrow CountyMOUNT GILEAD, OH19 nm NW2
KCMHJohn Glenn Columbus IntlCOLUMBUS, OH26 nm SW27
KGQQGalion MuniGALION, OH27 nm N3
KDLZDelaware Muni/Jim Moore FldDELAWARE, OH27 nm W5
10GHolmes CountyMILLERSBURG, OH29 nm NE4
KOSUOhio State UniversityCOLUMBUS, OH29 nm SW17
KMFDMansfield Lahm RgnlMANSFIELD, OH30 nm N10

VFR charts covering 4I3

Common questions about 4I3

What charts are available for 4I3?

5 current FAA charts for Knox County, including 3 instrument approachs. All are free to download as PDFs from this page, from the 6 August 2026 cycle.

What are the radio frequencies for 4I3?

CTAF 123.05; Clearance delivery 119.45. Full civil VHF list, with sector notes, is in the frequencies table on this page — from the FAA NASR subscription.

How long is the runway at 4I3?

Knox County has 1 runway. The longest is 10/28 at 5,504 ft by 100 ft, asphalt. Full runway dimensions, lighting and approach aids are listed on this page.

Does 4I3 have an ILS approach?

No ILS is published. In total 4I3 has 3 published instrument approaches, of which 2 are RNAV (GPS).

Is 4I3 a towered airport?

No — Knox County has no control tower. Traffic co-ordinates on a common frequency rather than with a controller, which is listed in the frequencies table on this page.

Are these 4I3 charts current?

They are from the FAA cycle effective 6 August 2026, which is superseded on 3 September 2026. We publish each new cycle on its effective date. They are for flight simulation and reference only — not for real-world navigation.

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Not for navigation. For flight simulation and reference use only. Procedures are superseded on a 28-day cycle — obtain current official charts from the FAA for real-world flight.

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