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
HEIDI
MMSI 366679810 · Call sign WCR9333
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
10.6 m
Beam
3.1 m
Draft
1.6 m
Call sign
WCR9333
Official No.
228578
AIS reports
1
HEIDI, an American fishing vessel, measures 10.6 metres on deck. She's built with a beam of 3.1 m and a 1.6 m draft. Look for MMSI 366679810, call sign WCR9333. It's free to add HEIDI to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for working captains
Know where the fleet is. Get HEIDI 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 HEIDI 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 HEIDI 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 HEIDI and switch it all on
Free to join · nothing to install to start · cancel anytime
About HEIDI
What kind of vessel is HEIDI?
HEIDI is a Commercial Fishing Vessel flagged to United States of America.
What is HEIDI's MMSI?
HEIDI's MMSI is 366679810. Call sign WCR9333.
How big is HEIDI?
HEIDI is about 10.6 m long, 3.1 m on the beam, drawing 1.6 m.
Is HEIDI on the Master's Mate Safety Initiative Network?
Not yet. If HEIDI is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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