Mark's Park & Airfield UltralightPrivate
3WN4 · New London, WI · Non-towered
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:49 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:13 AM | 10:13Z |
| Sunrise | 05:45 AM | 10:45Z |
| Sunset | 08:16 PM | 01:16Z |
| Evening civil twilight Loggable night begins | 08:49 PM | 01:49Z |
Plan a flight from 3WN4
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
| Runway | Length | Your margin |
|---|---|---|
| 09/27 | 1,000 ft |
Prefer one flat page? Full runway details for 3WN4 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 3WN4 kneeboard →
Comms & NavAids
Nearby navigation aids
OSH 116.75 · GRB 115.50
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| OSH · Oshkosh | VOR/DME | 116.75 · 114Y | Low | r332° / 21.1 NM |
| GRB · Green Bay | VORTAC | 115.50 · 102X | High | r238° / 28.9 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 3WN4 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 3WN4
- Coordinates
- 44.3059, -88.7715
- Elevation
- 855 ft MSL
- Magnetic variation
- 2W
- Sectional chart
- GREEN BAY
- Airport use
- Private
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- GREEN BAY · 122.2 · 1-800-WX-BRIEF
- Attendance
- IREG
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 2002/11
- Distance from city
- 6 S
Ownership & management 2 contacts
Remarks FAA · 2 notes
General
- POWER LINES 1/2 NM NORTH AND WEST OF ULTRALIGHT FLIGHT PARK.
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
Nearby airports
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Also nearby: 32WI Dalonia Airport (private) (3 NM) · 2WN3 Curns Airport (private) (3 NM) · 38WI Northport Airport (private) (6 NM) · 9WI1 Black Otter Airport (private) (7 NM) · WI22 Rocket City Airport (private) (7 NM) · WI91 Larson Airport (private) (8 NM)
About 3WN4
Mark's Park & Airfield (3WN4) is an ultralight in New London, WI, at 855 ft MSL. It has 1 runway, the longest 1,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3WN4, refreshed from the Aviation Weather Center and FAA NASR.
Does 3WN4 have a control tower?
No. Mark's Park & Airfield is a non-towered (pilot-controlled) ultralight; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 3WN4?
Mark's Park & Airfield has 1 runway; the longest is 1,000 ft. See the Runways section for headings, surface, and lighting.
Where is 3WN4?
Mark's Park & Airfield is in New London, WI, at an elevation of 855 ft MSL. Coordinates: 44.3059, -88.7715.
Fly out of 3WN4 often?
Save 3WN4 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.
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 3WN4 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.