AirNav: 3NJ4 - Sarnoff Princeton Heliport

3NJ4

Sarnoff Princeton Heliport
Princeton, New Jersey, USA

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FAA INFORMATION EFFECTIVE 22 JANUARY 2026

Location

FAA Identifier:	3NJ4
Lat/Long:	40-19-50.0000N 074-37-40.0000W 40-19.833333N 074-37.666667W 40.3305556,-74.6277778 (estimated)
Elevation:	90 ft. / 27 m (estimated)
Variation:	12W (1985)
From city:	3 miles SE of PRINCETON, NJ
Time zone:	UTC -5 (UTC -4 during Daylight Saving Time)
Zip code:	08540

Heliport Operations

Heliport use:	Private use. Permission required prior to landing
Activation date:	03/1961
Control tower:	no
ARTCC:	NEW YORK CENTER
FSS:	MILLVILLE FLIGHT SERVICE STATION
Attendance:	UNATNDD
Wind indicator:	yes
Segmented circle:	no

Heliport Communications

WX ASOS at TTN (9 nm W):	126.775 (609-538-8690)
WX ASOS at SMQ (18 nm N):	120.6 (908-722-2139)

Nearby radio navigation aids

VOR radial/distance	VOR name	Freq	Var
RBVr332/9.8	ROBBINSVILLE VORTAC	113.80	10W
ARDr080/13.6	YARDLEY VOR/DME	108.20	10W
SBJr171/16.0	SOLBERG VOR/DME	112.90	10W
GXUr008/19.3	MC GUIRE VORTAC	110.60	12W
COLr284/21.4	COLTS NECK VOR/DME	115.40	11W
BWZr174/29.4	BROADWAY VOR/DME	114.20	11W
CYNr354/32.1	COYLE VORTAC	113.40	10W
CRIr254/37.5	CANARSIE VOR/DME	112.30	11W

NDB name		Hdg/Dist		Freq		Var		ID
LAKEHURST		333/21.8		396		11W		NEL	-. . .-..

Heliport Services

Airframe service:	NONE
Powerplant service:	NONE

Runway Information

Helipad H1

Dimensions:	50 x 50 ft. / 15 x 15 m
Surface:	asphalt
Latitude:	40-19.833333N
Longitude:	074-37.666667W
Elevation:	90.0 ft.
Traffic pattern:	left	left

Heliport Ownership and Management from official FAA records

Ownership:	Privately-owned
Owner:	SRI INTERNATIONAL - SARNOFF 201 WASHINGTON ROAD PRINCETON, NJ 08540 Phone 609-734-2000
Manager:	MICHAEL L DAVIS 201 WASHINGTON ROAD PRINCETON, NJ 08540 Phone 609-734-2538 SECURITY OPERATIONS CENTER - 609-734-2318

Additional Remarks

-	SECURITY OPERATIONS CENTER: 24-HR ON-SITE EMERGENCY NUMBER 609-734-2318.
-	FOR CD CTC NEW YORK APCH AT 800-645-3206.

Instrument Procedures

There are no published instrument procedures at 3NJ4.

Some nearby airports with instrument procedures:

39N - Princeton Airport (4 nm N)
N87 - Trenton-Robbinsville Airport (7 nm S)
KTTN - Trenton Mercer Airport (9 nm W)
47N - Central Jersey Regional Airport (12 nm N)
3N6 - Old Bridge Airport (13 nm E)
N51 - Solberg/Hunterdon Airport (16 nm N)
KSMQ - Somerset Airport (18 nm N)
KWRI - McGuire Field (Joint Base Mc Guire Dix Lakehurst) Airport (19 nm S)

Loc | Ops | Rwys | IFR | FBO | Links
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Area around 3NJ4 (Sarnoff Princeton Heliport)

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Aerial photo

Sectional chart

Airport distance calculator
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Sunrise and sunset

Times for 03-Feb-2026

	Local (UTC-5)	Zulu (UTC)
Morning civil twilight	06:38	11:38
Sunrise	07:07	12:07
Sunset	17:18	22:18
Evening civil twilight	17:47	22:47

Current date and time

Zulu (UTC)	03-Feb-2026 10:27:04
Local (UTC-5)	03-Feb-2026 05:27:04

METAR

KTTN 9nm W	ASOS 133.70 609-538-8690 030953Z AUTO 00000KT 10SM SCT120 M07/M14 A3015 RMK AO2 SLP204 T10671139
KSMQ 17nm N	ASOS 120.60 908-722-2139 030953Z AUTO 00000KT 10SM CLR M14/M17 A3013 RMK AO2 SLP206 T11391167
KWRI 19nm S	030955Z AUTO 27003KT 10SM FEW110 M06/M13 A3017 RMK AO2 SLP218 T10571129 $

TAF

KTTN 9nm W	030520Z 0306/0406 VRB02KT P6SM SCT250 FM031800 25007KT P6SM BKN060 FM040000 VRB02KT P6SM BKN060
KWRI 19nm S	030200Z 0302/0408 27009KT 9999 SCT060 QNH3014INS BECMG 0309/0310 27009KT 9999 SCT020 BKN050 QNH3015INS BECMG 0311/0312 28012KT 9999 BKN030 OVC050 QNH3012INS BECMG 0317/0318 25009KT 9999 OVC025 QNH3012INS BECMG 0400/0401 VRB06KT 9999 OVC020 QNH3008INS TX00/0318Z TNM13/0312Z

NOTAMs

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