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MA74 Larson's Seaplane Base
Tyngsboro, Massachusetts, USA

GOING TO TYNGSBORO?

FAA INFORMATION EFFECTIVE 02 OCTOBER 2025

Location

FAA Identifier: MA74
Lat/Long: 42-41-29.3230N 071-25-05.2300W
42-41.488717N 071-25.087167W
42.6914786,-71.4181194
(estimated)
Elevation: 90 ft. / 27 m (estimated)
Variation: 16W (1985)
From city: 1 mile NE of TYNGSBORO, MA
Time zone: UTC -4 (UTC -5 during Standard Time)
Zip code: 01879

Seaplane Base Operations

Seaplane Base use: Private use. Permission required prior to landing
Control tower: no
ARTCC: BOSTON CENTER
FSS: BRIDGEPORT FLIGHT SERVICE STATION
Attendance: DAYLIGHT HOURS
Wind indicator: no
Segmented circle: no

Seaplane Base Communications

WX AWOS-3PT at ASH (7 nm NW): 125.1 (603-578-0473)
WX ASOS at LWM (13 nm E): PHONE 978-687-8017
WX ASOS at BED (14 nm SE): 124.6 (781-372-5512)
WX ASOS at MHT (15 nm N): 119.55 (603-626-6902)
WX ASOS at FIT (17 nm SW): 135.175 (978-343-9121)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
BOSr333/27.6BOSTON VOR/DME112.7016W
GDMr087/29.6GARDNER VOR/DME116.9514W
CONr183/32.4CONCORD VOR/DME112.9015W

 
NDB name  Hdg/Dist  Freq  Var  ID
FITZY170/11.520915WMJ -- .---

Seaplane Base Services

Runway Information

Runway 13W/31W

Dimensions: 2500 x 400 ft. / 762 x 122 m
Surface: water
RUNWAY 13W  RUNWAY 31W
Traffic pattern: leftleft

Seaplane Base Ownership and Management from official FAA records

Ownership: Privately-owned
Owner: KAREN M. TAFT
12 LARSON AVE
TYNGSBORO, MA 01879
Phone 978-649-7172
Manager: KAREN M. TAFT
12 LARSON AVE
TYNGSBORO, MA 01879
Phone 978-649-7172

Additional Remarks

- FOR CD CTC BOSTON APCH AT 603-594-5551.

Instrument Procedures

There are no published instrument procedures at MA74.

Some nearby airports with instrument procedures:

KASH - Boire Field Airport (7 nm NW)
KLWM - Lawrence Municipal Airport (13 nm E)
KBED - Laurence G Hanscom Field Airport (14 nm SE)
KMHT - Manchester Boston Regional Airport (14 nm N)
6B6 - Minute Man Air Field (15 nm S)
KFIT - Fitchburg Municipal Airport (17 nm SW)
  
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Area around MA74 (Larson's Seaplane Base)
 
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Sectional chart

 
Airport distance calculator
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From to MA74

Sunrise and sunset
Times for 04-Oct-2025
 Local
(UTC-4)		 Zulu
(UTC)
Morning civil twilight06:1910:19
Sunrise06:4710:47
Sunset18:2222:22
Evening civil twilight18:5022:50

Current date and time
Zulu (UTC)  04-Oct-2025 16:19:34
Local (UTC-4)  04-Oct-2025 12:19:34
 
METAR
KASH 
6nm NW 		041556Z 00000KT 10SM CLR 24/08 A3017 RMK AO2 SLP218 T02390083
KLWM 
13nm E 		041554Z VRB03KT 10SM CLR 23/09 A3018 RMK AO2 SLP219 T02330094
KBED 
14nm S 		041551Z 00000KT 10SM CLR 24/10 A3016 RMK AO2 SLP225 T02390100
KMHT 
15nm N 		041553Z VRB03KT 10SM FEW200 24/09 A3016 RMK AO2 SLP224 T02390094
KFIT 
17nm SW 		041552Z AUTO 18005KT 10SM CLR 24/08 A3018 RMK AO2 SLP219 T02440078
TAF
KBED 
14nm S 		041128Z 0412/0512 30005KT P6SM SKC FM042000 26003KT P6SM SKC FM050100 00000KT P6SM FEW250
KMHT 
15nm N 		041137Z 0412/0512 VRB03KT P6SM FEW100 FEW250 TEMPO 0412/0414 BKN100
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