Sarnoff Princeton Heliport HeliportPrivate
3NJ4 · Princeton, NJ · 90 ft elevation · var 12W · Non-towered
Airport information
- FAA LID
- 3NJ4
- Coordinates
- 40.3334, -74.6329
- Elevation
- 90 ft MSL
- Magnetic variation
- 12W
- Sectional chart
- NEW YORK
- Airport use
- Private
- Control tower
- No
- ARTCC
- NEW YORK (ZNY)
- Flight service (FSS)
- MILLVILLE
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1961/03
- Distance from city
- 3 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 | 04:56 AM | 08:56Z |
| Sunrise | 05:29 AM | 09:29Z |
| Sunset | 08:32 PM | 00:32Z |
| Evening civil twilight Loggable night begins | 09:05 PM | 01:05Z |
Plan a flight from 3NJ4
Runway H1/
50 ft × 50 ft · Asphalt- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
| Runway | Length | Your margin |
|---|---|---|
| H1/ | 50 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| RBV · Robbinsville | VORTAC | 113.80 | r331° / 10.1 NM |
| ARD · Yardley | VOR-DME | 108.20 | r079° / 13.5 NM |
| SBJ · Solberg | VOR-DME | 112.90 | r172° / 15.8 NM |
| GXU · Mc Guire | VORTAC | 110.60 | r006° / 19.5 NM |
| COL · Colts Neck | VOR-DME | 115.40 | r285° / 21.7 NM |
| NEL · Lakehurst | TACAN | 111.80 | r335° / 21.9 NM |
| PNE · North Philadelphia | VOR | 112.00 | r059° / 22.9 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 3NJ4. VFR sectional link above.
Services
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management
Remarks FAA
- SECURITY OPERATIONS CENTER: 24-HR ON-SITE EMERGENCY NUMBER 609-734-2318.
- FOR CD CTC NEW YORK APCH AT 800-645-3206.
- 609-734-2601
- SECURITY OPERATIONS CENTER - 609-734-2318
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 3NJ4 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 3NJ4
Sarnoff Princeton Heliport (3NJ4) is a heliport in Princeton, NJ, at 90 ft MSL. It has 1 runway, the longest 50 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3NJ4, refreshed from the Aviation Weather Center and FAA NASR.
Does 3NJ4 have a control tower?
No. Sarnoff Princeton Heliport is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 3NJ4?
Sarnoff Princeton Heliport has 1 runway; the longest is 50 ft. See the Runways tab for headings, surface, and lighting.
Where is 3NJ4?
Sarnoff Princeton Heliport is in Princeton, NJ, at an elevation of 90 ft MSL. Coordinates: 40.3334, -74.6329.
Fly out of 3NJ4 often?
Save 3NJ4 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.