Airport information
- FAA LID
- 4MO8
- Coordinates
- 39.2067, -94.2697
- Elevation
- 720 ft MSL
- Magnetic variation
- 4E
- Sectional chart
- KANSAS CITY
- Airport use
- Private
- Control tower
- No
- ARTCC
- KANSAS CITY (ZKC)
- Flight service (FSS)
- COLUMBIA
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 1992/11
- Distance from city
- 3 NE
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 | 05:19 AM | 10:19Z |
| Sunrise | 05:51 AM | 10:51Z |
| Sunset | 08:47 PM | 01:47Z |
| Evening civil twilight Loggable night begins | 09:19 PM | 02:19Z |
Plan a flight from 4MO8
Traffic pattern
- Landing
- Rwy 09
- Pattern
- left (turns left)
- TPA
- 1,700 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 09 at 1,700 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 09/27
2,100 ft × 80 ft · Turf (Good)- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Pline, 25 ft, 500 ft from threshold
- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Trees, 45 ft, 1,000 ft from threshold
| Runway | Length | Your margin |
|---|---|---|
| 09/27 | 2,100 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| ANX · Napoleon | VORTAC | 114.00 | r309° / 9.4 NM |
| RIS · Riverside | VOR-DME | 111.40 | r066° / 16.1 NM |
| MCI · Kansas City | VORTAC | 113.25 | r097° / 22.2 NM |
| OJC · Johnson Co | VOR-DME | 113.00 | r039° / 30.9 NM |
| BQS · Braymer | VOR-DME | 111.20 | r213° / 31.3 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 4MO8. VFR sectional link above.
Ownership & management
Remarks FAA
- PROVIDED APPROACH TO EACH RY IS 20:1 AND TRANSITIONAL SLOPE IS 7:1.
- FOR CD CTC KANSAS CITY APCH AT 816-329-2710.
- 50 FT PLINE 2500 FT WEST.
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 4MO8 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 4MO8
Martens Airport (4MO8) is an airport in Atherton, MO, at 720 ft MSL. It has 1 runway, the longest 2,100 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4MO8, refreshed from the Aviation Weather Center and FAA NASR.
Does 4MO8 have a control tower?
No. Martens Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 4MO8?
Martens Airport has 1 runway; the longest is 2,100 ft. See the Runways tab for headings, surface, and lighting.
Where is 4MO8?
Martens Airport is in Atherton, MO, at an elevation of 720 ft MSL. Coordinates: 39.2067, -94.2697.
Fly out of 4MO8 often?
Save 4MO8 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.