Airport information
- FAA LID
- 3IS1
- Coordinates
- 39.7028, -89.2096
- Elevation
- 615 ft MSL
- Magnetic variation
- 1E
- Sectional chart
- ST LOUIS
- Airport use
- Private
- Control tower
- No
- ARTCC
- KANSAS CITY (ZKC)
- Flight service (FSS)
- SAINT LOUIS
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1944/10
- Distance from city
- 4 W
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:56 AM | 09:56Z |
| Sunrise | 05:29 AM | 10:29Z |
| Sunset | 08:28 PM | 01:28Z |
| Evening civil twilight Loggable night begins | 09:01 PM | 02:01Z |
Plan a flight from 3IS1
Night operations
- Airport lighting
- SEE RMK
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 18
- Pattern
- left (turns left)
- TPA
- 1,600 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 18 at 1,600 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 18/36
2,600 ft × 100 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Heading
- 188° mag · 189° true
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 18/36 | 2,600 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| AXC · Decatur | VORTAC | 117.20 | r260° / 16.4 NM |
| SPI · Spinner | VORTAC | 112.70 | r112° / 23.1 NM |
| VLA · Vandalia | VORTAC | 114.30 | r353° / 36.6 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 3IS1. VFR sectional link above.
Services
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management
Remarks FAA
- PRIVATE RESIDENCE ON FIELD
- FOR CD CTC ST LOUIS APCH 314-890-1017.
- PHONE 217-692-2696.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 3IS1 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About 3IS1
Mc Coy Airport (3IS1) is an airport in Blue Mound, IL, at 615 ft MSL. It has 1 runway, the longest 2,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3IS1, refreshed from the Aviation Weather Center and FAA NASR.
Does 3IS1 have a control tower?
No. Mc Coy Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 3IS1?
Mc Coy Airport has 1 runway; the longest is 2,600 ft. See the Runways tab for headings, surface, and lighting.
Where is 3IS1?
Mc Coy Airport is in Blue Mound, IL, at an elevation of 615 ft MSL. Coordinates: 39.7028, -89.2096.
Fly out of 3IS1 often?
Save 3IS1 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.