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MA74 Larson's Seaplane Base
Tyngsboro, Massachusetts, USA

GOING TO TYNGSBORO?

FAA INFORMATION EFFECTIVE 04 SEPTEMBER 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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From to MA74

Sunrise and sunset
Times for 05-Sep-2025
 Local
(UTC-4)		 Zulu
(UTC)
Morning civil twilight05:4709:47
Sunrise06:1610:16
Sunset19:1323:13
Evening civil twilight19:4223:42

Current date and time
Zulu (UTC)  06-Sep-2025 01:59:47
Local (UTC-4)  05-Sep-2025 21:59:47
 
METAR
KASH 
6nm NW 		060056Z VRB03KT 10SM CLR 23/17 A2993 RMK AO2 SLP136 T02330172
KLWM 
13nm E 		060154Z 21006KT 10SM CLR 23/17 A2996 RMK AO2 SLP144 T02280172
KBED 
14nm S 		060151Z 20009KT 10SM CLR 22/17 A2994 RMK AO2 SLP151 T02170172
KMHT 
15nm N 		060153Z 18010KT 10SM CLR 23/17 A2992 RMK AO2 SLP141 T02280167
KFIT 
17nm SW 		060152Z AUTO 10SM CLR 22/17 A2996 RMK AO2 SLP144 T02170172
TAF
KBED 
14nm S 		051720Z 0518/0618 20010KT P6SM SCT020 FM060400 20007KT P6SM FEW020 FEW250 WS020/22040KT FM061500 19011G21KT P6SM SCT120
KMHT 
15nm N 		051725Z 0518/0618 20011KT P6SM SCT040 FM060400 19009KT P6SM FEW250 WS020/21040KT FM060900 19006KT 1SM BR FEW002 FEW130 FM061200 19006KT P6SM FEW060 FM061700 20012G22KT 5SM BR SCT040
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