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3NJ4 Sarnoff Princeton Heliport
Princeton, New Jersey, USA

GOING TO PRINCETON?

FAA INFORMATION EFFECTIVE 27 NOVEMBER 2025

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
RBVr332/9.8ROBBINSVILLE VORTAC113.8010W
ARDr080/13.6YARDLEY VOR/DME108.2010W
SBJr171/16.0SOLBERG VOR/DME112.9010W
GXUr008/19.3MC GUIRE VORTAC110.6012W
COLr284/21.4COLTS NECK VOR/DME115.4011W
BWZr174/29.4BROADWAY VOR/DME114.2011W
CYNr354/32.1COYLE VORTAC113.4010W
CRIr254/37.5CANARSIE VOR/DME112.3011W

 
NDB name  Hdg/Dist  Freq  Var  ID
LAKEHURST333/21.839611WNEL -. . .-..

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: leftleft

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
Com | Nav | Svcs | Stats | Notes
Area around 3NJ4 (Sarnoff Princeton Heliport)
 
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Aerial photo
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Sectional chart

 
Airport distance calculator
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From to 3NJ4

Sunrise and sunset
Times for 19-Dec-2025
 Local
(UTC-5)		 Zulu
(UTC)
Morning civil twilight06:4711:47
Sunrise07:1812:18
Sunset16:3321:33
Evening civil twilight17:0422:04

Current date and time
Zulu (UTC)  19-Dec-2025 20:32:03
Local (UTC-5)  19-Dec-2025 15:32:03
 
METAR
KTTN 
9nm W 		ASOS 133.70 609-538-8690
191953Z 26008KT 10SM BKN110 10/04 A2940 RMK AO2 SLP949 T01000044
KSMQ 
17nm N 		ASOS 120.60 908-722-2139
192023Z AUTO 2 1/2SM VCTS RA FEW030 SCT038 BKN055 09/05 A2941 RMK AO2 LTG DSNT N RAB17 PRESRR P0003 T00940050
KWRI 
19nm S 		192018Z 26028G37KT 10SM -RA SQ SCT049 SCT055 OVC100 12/03 A2945 RMK AO2A RAB17 SLP972 $
TAF
KTTN 
9nm W 		191728Z 1918/2018 26013G25KT P6SM SCT020 BKN040 TEMPO 1918/1919 BKN020 FM192000 27019G38KT P6SM BKN040 FM200300 28017G31KT P6SM FEW040 FM200700 28012G24KT P6SM FEW230 FM201000 28008KT P6SM FEW250
KWRI 
19nm S 		191800Z 1918/2024 26012G25KT 9999 -SHRA SCT050 BKN060 QNH2937INS BECMG 1920/1921 27018G35KT 9999 NSW SCT050 WS020/26050KT 530003 QNH2952INS BECMG 2006/2007 29012G25KT 9999 FEW200 QNH3004INS BECMG 2009/2010 28010KT 9999 FEW200 QNH3011INS BECMG 2015/2016 VRB06KT 9999 SCT200 QNH3010INS TX12/1918Z TNM02/2003Z
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