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3NJ4 Sarnoff Princeton Heliport
Princeton, New Jersey, USA

GOING TO PRINCETON?

FAA INFORMATION EFFECTIVE 16 APRIL 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 28-Apr-2026
 Local
(UTC-4)		 Zulu
(UTC)
Morning civil twilight05:3409:34
Sunrise06:0310:03
Sunset19:4923:49
Evening civil twilight20:1900:19

Current date and time
Zulu (UTC)  28-Apr-2026 06:29:39
Local (UTC-4)  28-Apr-2026 02:29:39
 
METAR
KTTN 
9nm W 		ASOS 133.70 609-538-8690
280553Z AUTO 00000KT 10SM CLR 07/03 A3022 RMK AO2 SLP227 T00720028 10150 20072 58015
KSMQ 
17nm N 		ASOS 120.60 908-722-2139
280553Z AUTO 00000KT 10SM CLR 04/03 A3021 RMK AO2 SLP231 T00440028 10139 20044 56014
KWRI 
19nm S 		280555Z AUTO 00000KT 10SM CLR 06/03 A3022 RMK AO2 SLP233 T00640028 10133 20057 57015 PWINO $
TAF
KTTN 
9nm W 		280532Z 2806/2906 VRB03KT P6SM FEW250 FM281600 17006KT P6SM BKN110 FM290100 VRB04KT P6SM SCT070
KWRI 
19nm S 		280200Z 2802/2908 VRB04KT 9999 SCT270 QNH3026INS BECMG 2813/2814 VRB05KT 9999 SCT180 QNH3019INS BECMG 2817/2818 15008KT 9999 SCT100 BKN120 QNH3013INS BECMG 2822/2823 12009KT 9999 SCT050 BKN070 QNH3009INS TX18/2819Z TN05/2809Z
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