MA74 — Larson's Seaplane Base, Tyngsboro, MA

Non-ToweredTyngsboro, MA • 90' MSL

MA74 WeatherLive METAR & TAF

MA74 has 1 runway. The longest is 13W/31W at 2,500 ft × 400 ft (water).

13W/31WNo runway lights2,500 ft × 400 ftWater

FAA NASR data, cycle 2026-09-03

MA74 field elevation is 90 ft MSL. The standard traffic pattern altitude at MA74 is 1,090 ft MSL (1,000 ft AGL).

Field elevation90 ft MSL

Pattern altitude1,090 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

Check MA74 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, MA74 is a non-towered airport.

MA74 has 1 runway (13W/31W). The longest runway is 2,500 feet.

MA74 uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,090 feet MSL at a field elevation of 90 feet.

MA74 (Larson's Seaplane Base) has a field elevation of 90 feet MSL.

MA74 (Larson's Seaplane Base) is located in Tyngsboro, MA.