AirNav: MA74 - Larson's Seaplane Base

MA74

Larson's Seaplane Base
Tyngsboro, Massachusetts, USA

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FAA INFORMATION EFFECTIVE 16 APRIL 2026

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
BOSr333/27.6	BOSTON VOR/DME	112.70	16W
GDMr087/29.6	GARDNER VOR/DME	116.95	14W
CONr183/32.4	CONCORD VOR/DME	112.90	15W

NDB name		Hdg/Dist		Freq		Var		ID
FITZY		170/11.5		209		15W		MJ	-- .---

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:	left	left

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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Aerial photo

Sectional chart

Airport distance calculator
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Sunrise and sunset

Times for 02-May-2026

	Local (UTC-4)	Zulu (UTC)
Morning civil twilight	05:09	09:09
Sunrise	05:40	09:40
Sunset	19:46	23:46
Evening civil twilight	20:17	00:17

Current date and time

Zulu (UTC)	02-May-2026 19:20:22
Local (UTC-4)	02-May-2026 15:20:22

METAR

KASH 6nm NW	021856Z 30009KT 10SM BKN039 OVC048 11/07 A2984 RMK AO2 SLP103 T01110072
KLWM 13nm E	021854Z 20011G20KT 10SM BKN080 14/03 A2984 RMK AO2 SLP107 T01440028
KBED 14nm S	021851Z 19012G19KT 10SM BKN065 OVC080 13/07 A2983 RMK RNAV RY29 APCH IN USE
KMHT 15nm N	021853Z 33007KT 9SM -RA FEW008 BKN035 OVC042 10/08 A2983 RMK AO2 RAB15 SLP116 P0001 T01000078
KFIT 17nm SW	021852Z AUTO 26004KT 8SM -RA OVC031 10/07 A2984 RMK AO2 RAB20 SLP107 P0000 T01000072

TAF

KBED 14nm S	021728Z 0218/0318 20006KT P6SM VCSH BKN035 FM030400 32003KT P6SM OVC060 FM031200 33006KT P6SM BKN025 FM031400 34007KT P6SM SCT030
KMHT 15nm N	021746Z 0218/0318 VRB05KT P6SM VCSH SCT025 BKN035 OVC050 TEMPO 0219/0222 4SM -SHRA BKN030 OVC040 FM030100 34006KT P6SM SCT050 BKN150 FM031200 33012G22KT P6SM SCT035 BKN045

NOTAMs

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