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.
Recreational
Heidi
Recreational · United States of America · last seen 51°N 2°W · Jun 2026 · MMSI 366816540 · Call sign WDF7524
Not yet on Master's MateType
Recreational
Flag
USALength
10.4 m
Beam
3.3 m
Draft
2.7 m
Call sign
WDF7524
Official No.
601712
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
9
Out of the United States, Heidi is a 10.4-metre pleasure craft. Heidi has a 3.3-metre beam and a 2.7-metre draft. On AIS she shows as MMSI 366816540, call sign WDF7524. Heidi is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for recreational captains
Keep Heidi looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 2, 2026
Position
50.7401° N, 1.5028° W
Cruising the English Channel? 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 recreational 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:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 Recreational flagged to United States of America.
Where was Heidi last seen?
Heidi was last reported in the English Channel in Jun 2026 on public AIS.
What is Heidi's MMSI?
Heidi's MMSI is 366816540. Call sign WDF7524.
How big is Heidi?
Heidi is about 10.4 m long, 3.3 m on the beam, drawing 2.7 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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