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3NJ4 Sarnoff Princeton Heliport
Princeton, New Jersey, USA

GOING TO PRINCETON?

FAA INFORMATION EFFECTIVE 19 MARCH 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 -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 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
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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 14-Apr-2026
 Local
(UTC-4)		 Zulu
(UTC)
Morning civil twilight05:5509:55
Sunrise06:2310:23
Sunset19:3523:35
Evening civil twilight20:0300:03

Current date and time
Zulu (UTC)  14-Apr-2026 15:47:55
Local (UTC-4)  14-Apr-2026 11:47:55
 
METAR
KTTN 
9nm W 		ASOS 133.70 609-538-8690
141453Z 27007G14KT 10SM CLR 25/13 A3001 RMK AO2 SLP154 T02500133 58006 $
KSMQ 
17nm N 		ASOS 120.60 908-722-2139
141353Z AUTO VRB05KT 10SM CLR 24/14 A3000 RMK AO2 SLP157 T02440144
KWRI 
19nm S 		141455Z AUTO 26009KT 10SM CLR 27/14 A3002 RMK AO2 SLP164 T02680142 58003 PWINO $
TAF
KTTN 
9nm W 		141120Z 1412/1512 25005KT P6SM SCT250 FM141700 23013G21KT P6SM SCT060 FM142300 23008KT P6SM VCSH BKN050 FM150300 23004KT P6SM SCT250
KWRI 
19nm S 		141000Z 1410/1516 25006KT 9999 SCT040 QNH3000INS BECMG 1417/1418 24010G25KT 9999 SKC QNH2995INS BECMG 1500/1501 22010G15KT 9999 SCT050 QNH2990INS TX30/1420Z TN16/1411Z
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