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3NJ4 Sarnoff Princeton Heliport
Princeton, New Jersey, USA

GOING TO PRINCETON?

FAA INFORMATION EFFECTIVE 10 JULY 2025

Location

FAA Identifier: 3NJ4
Lat/Long: 40-20-46.0000N 074-37-37.0000W
40-20.766667N 074-37.616667W
40.3461111,-74.6269444
(estimated)
Elevation: 90 ft. / 27 m (estimated)
Variation: 12W (1985)
From city: 3 miles SE of PRINCETON, NJ
Time zone: UTC -4 (UTC -5 during Standard 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 SW): 126.775 (609-538-8690)
WX ASOS at SMQ (17 nm N): 120.6 (908-722-2139)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
RBVr335/10.5ROBBINSVILLE VORTAC113.8010W
ARDr077/14.0YARDLEY VOR/DME108.2010W
SBJr170/15.2SOLBERG VOR/DME112.9010W
GXUr008/20.2MC GUIRE VORTAC110.6012W
COLr287/21.5COLTS NECK VOR/DME115.4011W
BWZr173/28.6BROADWAY VOR/DME114.2011W
CYNr354/33.0COYLE VORTAC113.4010W
CRIr255/37.1CANARSIE VOR/DME112.3011W
TEBr231/39.6TETERBORO VOR/DME108.4011W

 
NDB name  Hdg/Dist  Freq  Var  ID
LAKEHURST335/22.539611WNEL -. . .-..

Heliport Services

Airframe service: NONE
Powerplant service: NONE

Runway Information

Helipad H1

Dimensions: 50 x 50 ft. / 15 x 15 m
Surface: asphalt
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 NW)
N87 - Trenton-Robbinsville Airport (8 nm S)
KTTN - Trenton Mercer Airport (9 nm SW)
47N - Central Jersey Regional Airport (11 nm N)
3N6 - Old Bridge Airport (13 nm E)
N51 - Solberg/Hunterdon Airport (15 nm N)
KSMQ - Somerset Airport (17 nm N)
KWRI - McGuire Field (Joint Base Mc Guire Dix Lakehurst) Airport (20 nm S)
  
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Area around 3NJ4 (Sarnoff Princeton Heliport)
 
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From to 3NJ4

Sunrise and sunset
Times for 24-Jul-2025
 Local
(UTC-4)		 Zulu
(UTC)
Morning civil twilight05:1809:18
Sunrise05:5009:50
Sunset20:2000:20
Evening civil twilight20:5200:52

Current date and time
Zulu (UTC)  24-Jul-2025 12:48:37
Local (UTC-4)  24-Jul-2025 08:48:37
 
METAR
KTTN 
9nm SW 		ASOS 133.70 609-538-8690
241153Z 20003KT 10SM CLR 21/17 A3023 RMK AO2 SLP230 T02060172 10206 20183 51010
KSMQ 
16nm N 		ASOS 120.60 908-722-2139
241153Z AUTO 00000KT 8SM CLR 21/19 A3021 RMK AO2 SLP229 T02060189 10206 20156 50007
KWRI 
20nm S 		241155Z AUTO 21004KT 10SM CLR 22/18 A3023 RMK AO2 SLP236 T02190175 10219 20172 51010 $
TAF
KTTN 
9nm SW 		241126Z 2412/2512 18004KT P6SM SCT250 FM241500 21007KT P6SM FEW110 FEW250
KWRI 
20nm S 		240200Z 2402/2508 21006KT 9999 FEW065 QNH3011INS BECMG 2415/2416 21006KT 9999 FEW080 SCT100 QNH3007INS BECMG 2420/2421 17010G15KT 9999 SCT040 BKN055 QNH3004INS BECMG 2423/2424 VRB06KT 9999 SKC QNH3006INS TX29/2419Z TN16/2410Z
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