Airport information
- FAA LID
- 3B4
- Coordinates
- 43.1432, -70.7736
- Elevation
- 130 ft MSL
- Magnetic variation
- 16W
- Sectional chart
- NEW YORK
- Airport use
- Public
- Control tower
- No
- ARTCC
- BOSTON (ZBW)
- Flight service (FSS)
- BANGOR
- NOTAM facility
- BGR
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1966/08
- Distance from city
- 2 SE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:28 AM | 08:28Z |
| Sunrise | 05:03 AM | 09:03Z |
| Sunset | 08:26 PM | 00:26Z |
| Evening civil twilight Loggable night begins | 09:02 PM | 01:02Z |
Plan a flight from 3B4
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 12 · 126°
- Pattern
- left (turns left)
- TPA
- 1,100 ft MSL (≈1,000 AGL)
- CTAF
- 122.9
Enter the left downwind for Rwy 12 at 1,100 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 12/30
2,701 ft × 50 ft · Asphalt (Excellent)- Heading
- 126° mag · 110° true
- Markings
- nonprecision
- Traffic pattern
- Left
- Approach obstacle
- Trees, 25 ft, 201 ft from threshold, 60 ft L of centerline
- Heading
- 306° mag · 290° true
- Markings
- nonprecision
- Traffic pattern
- Left
- Approach obstacle
- Trees, 30 ft, 360 ft from threshold, 130 ft R of centerline — 5:1 slope to clear · penetrates the 20:1 visual approach surface
- Displaced threshold
- 86 ft
| Runway | Length | Your margin |
|---|---|---|
| 12/30 | 2,701 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| A/D | 125.05 | BOSTON APP/DEP |
| UNIC | 122.8 | CTAF/UNICOM |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| PSM · Pease | VORTAC | 116.50 | r052° / 4.4 NM |
| ENE · Kennebunk | VORTAC | 117.10 | r219° / 18.3 NM |
| LWM · Lawrence | VOR-DME | 112.50 | r045° / 28 NM |
| MHT · Manchester | VOR-DME | 114.40 | r073° / 30.9 NM |
| CON · Concord | VORTAC | 112.90 | r112° / 35.4 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- BIRDS & DEER ON & INVOF ARPT.
- FOR CD CTC BOSTON APCH AT 603-594-5551.
- 20-25 FT TREES AND BRUSH 0-200 FT FM THR, 115-125 FT L OF CNTRLN; 5-25 FT TREES 5-150 FT FM THR, 15-150 FT R OF CNTRLN AND 15-250 FT L OF CNTRLN.
- 20 FT TREES 90-135 FT FM THR, 90 FT R OF CNTRLN; 23 FT HOUSE 68 FT FM THR, 118 FT L OF CNTRLN; 35 FT TREES 90 FT FM THR, 100 FT L OF CNTRLN.
- 30 FT TREE 5 FT FM DTHR, 180 FT L; 0:1 SLP TO DTHR.
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 3B4 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 3B4
Seacoast Airfield (3B4) is an airport in Eliot, ME, at 130 ft MSL. It has 1 runway, the longest 2,701 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3B4, refreshed from the Aviation Weather Center and FAA NASR.
Does 3B4 have a control tower?
No. Seacoast Airfield is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 3B4?
Seacoast Airfield has 1 runway; the longest is 2,701 ft. See the Runways tab for headings, surface, and lighting.
Where is 3B4?
Seacoast Airfield is in Eliot, ME, at an elevation of 130 ft MSL. Coordinates: 43.1432, -70.7736.
Fly out of 3B4 often?
Save 3B4 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.