Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Towing Vessel

Donald Sea

MMSI 366797770 · Call sign WDA3377

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

14.8 m

Beam

5 m

Draft

1.9 m

Call sign

WDA3377

Official No.

293914

AIS reports

Donald Sea, an American working vessel, measures 14.8 metres on deck. Below, she has a beam measuring 5 metres and a draft measuring 1.9 metres. Find her under MMSI 366797770, call sign WDA3377. There's a place for Donald Sea on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.

Free forever · No credit card · for working boats

Built for boats that work — like Donald Sea.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

Rig her out — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Donald Sea roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

Free with your claim · for working boats

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Donald Sea on the map. It hands you the full bridge:

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim Donald Sea and switch it all on

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Claim free → unlock everything

About Donald Sea

What kind of vessel is Donald Sea?

Donald Sea is a Towing Vessel flagged to United States of America.

What is Donald Sea's MMSI?

Donald Sea's MMSI is 366797770. Call sign WDA3377.

How big is Donald Sea?

Donald Sea is about 14.8 m long, 5 m on the beam, drawing 1.9 m.

Is Donald Sea on the Master's Mate Safety Initiative Network?

Not yet. If Donald Sea is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).