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CT21 Sunnyvale Field Airport
North Stonington, Connecticut, USA

FAA INFORMATION EFFECTIVE 09 JULY 2026

Location

FAA Identifier: CT21
Lat/Long: 41-27-38.2662N 071-49-48.6066W
41-27.637770N 071-49.810110W
41.4606295,-71.8301685
(estimated)
Elevation: 213 ft. / 65 m
From city: 3 miles ENE of NORTH STONINGTON, CT
Time zone: UTC -4 (UTC -5 during Standard Time)
Zip code: 06359

Airport Operations

Airport use: Private use. Permission required prior to landing
Activation date: 04/2025
Control tower: no
ARTCC: BOSTON CENTER
FSS: BRIDGEPORT FLIGHT SERVICE STATION
Attendance: 
Segmented circle: no

Airport Communications

WX ASOS at WST (7 nm S): 132.375 (401-596-9543)
WX ASOS at GON (12 nm SW): 127.0 (860-449-8921)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
ORWr141/9.5NORWICH VOR/DME110.0014W
GONr066/12.7GROTON VOR/DME110.8514W
SEYr342/21.0SANDY POINT VOR/DME117.8015W
PVDr243/23.9PROVIDENCE VOR/DME115.6014W
PUTr193/29.7PUTNAM VOR/DME117.4014W
HFDr122/34.0HARTFORD VOR/DME114.9013W
HTOr047/39.2HAMPTON VORTAC113.6013W
MADr090/39.8MADISON VOR/DME110.4013W

Airport Services

Runway Information

Runway 1/19

Dimensions: 2004 x 50 ft. / 611 x 15 m
Surface: dirt
RUNWAY 1  RUNWAY 19
Latitude: 41-27.478380N41-27.797160N
Longitude: 071-49.866660W071-49.753560W
Elevation: 182.0 ft.213.0 ft.
Traffic pattern: rightleft
Markings: STOLSTOL

Airport Ownership and Management from official FAA records

Ownership: Privately-owned
Owner: CLARKS FALLS LAND TRUST
31A CLARKS FALLS RD
NORTH STONINGTON, CT 06359
Phone 860-602-8450
Manager: CLARKS FALLS LAND TRUST
31A CLARKS FALLS RD
NORTH STONINGTON, CT 06359
Phone 860-602-8450

Instrument Procedures

There are no published instrument procedures at CT21.

Some nearby airports with instrument procedures:

KWST - Westerly State Airport (7 nm S)
KGON - Groton-New London Airport (12 nm SW)
0B8 - Elizabeth Field Airport (15 nm SW)
KOQU - Quonset State Airport (20 nm NE)
KBID - Block Island State Airport (21 nm SE)
  
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Aerial photo
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Sectional chart

 
Airport distance calculator
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From to CT21

Sunrise and sunset
Times for 04-Aug-2026
 Local
(UTC-4)		 Zulu
(UTC)
Morning civil twilight05:1509:15
Sunrise05:4609:46
Sunset20:0100:01
Evening civil twilight20:3200:32

Current date and time
Zulu (UTC)  04-Aug-2026 09:11:15
Local (UTC-4)  04-Aug-2026 05:11:15
 
METAR
KWST 
7nm S 		040853Z AUTO 00000KT 10SM CLR 16/16 A3002 RMK AO2 SLP166 T01610156 51014
KGON 
12nm SW 		040856Z AUTO 36003KT 10SM CLR 16/16 A3002 RMK AO2 SLP165 T01610161 51013
TAF
KGON 
12nm SW 		040522Z 0406/0506 VRB03KT P6SM SKC TEMPO 0407/0411 4SM BR FM041500 26006KT P6SM FEW035 FM041700 18008KT P6SM FEW035 FM050000 VRB03KT P6SM SCT150
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