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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

HARBOR ADMIRAL

MMSI 366892110 · Call sign WDB3860

Not yet on Master's Mate
Type
Towing Vessel
Flag
USAUSA
Length
12.8 m
Beam
6.7 m
Draft
2 m
Call sign
WDB3860
Official No.
1119924
AIS reports
1

HARBOR ADMIRAL, an American utility vessel, measures 12.8 metres on deck. She carries a 6.7 m beam and a 2-metre draft. On AIS she shows as MMSI 366892110, call sign WDB3860. There's a place for HARBOR ADMIRAL 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 HARBOR ADMIRAL.

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 HARBOR ADMIRAL 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 HARBOR ADMIRAL 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 HARBOR ADMIRAL and switch it all on
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Claim free → unlock everything

About HARBOR ADMIRAL

What kind of vessel is HARBOR ADMIRAL?
HARBOR ADMIRAL is a Towing Vessel flagged to United States of America.
What is HARBOR ADMIRAL's MMSI?
HARBOR ADMIRAL's MMSI is 366892110. Call sign WDB3860.
How big is HARBOR ADMIRAL?
HARBOR ADMIRAL is about 12.8 m long, 6.7 m on the beam, drawing 2 m.
Is HARBOR ADMIRAL on the Master's Mate Safety Initiative Network?
Not yet. If HARBOR ADMIRAL is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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