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.

Commercial Fishing Vessel

SEA LION V

MMSI 366869040 · Call sign WDM7817

Not yet on Master's Mate

Type

Commercial Fishing Vessel

Flag

USA

Length

26.2 m

Beam

7.6 m

Draft

3.7 m

Call sign

WDM7817

IMO

8969915

Official No.

1113356

AIS reports

Out of the United States, SEA LION V is a 26.2-metre fishing trawler. Below, she has a 7.6-metre beam and a draft measuring 3.7 metres. On AIS she appears as MMSI 366869040, call sign WDM7817, IMO 8969915. SEA LION V is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

Free forever · No credit card · for working captains

Know where the fleet is. Get SEA LION V home safe.

Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.

Keep the fleet in sight — free →

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

Wherever SEA LION V 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 captains

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

Joining the Safety Initiative Network doesn't just put SEA LION V on the map. It hands you the full bridge:

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.

Systems Monitoring

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

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 SEA LION V and switch it all on

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About SEA LION V

What kind of vessel is SEA LION V?

SEA LION V is a Commercial Fishing Vessel flagged to United States of America.

What is SEA LION V's MMSI?

SEA LION V's MMSI is 366869040. Call sign WDM7817. IMO 8969915.

How big is SEA LION V?

SEA LION V is about 26.2 m long, 7.6 m on the beam, drawing 3.7 m.

Is SEA LION V on the Master's Mate Safety Initiative Network?

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