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.
Fishing Tender
Dorothea
MMSI 367026930 · Call sign WDC4584
Not yet on Master's MateType
Fishing Tender
Flag
USALength
25.1 m
Beam
8.1 m
Draft
2.7 m
Call sign
WDC4584
Official No.
249559
AIS reports
1
Dorothea is an offshore fishing boat wearing American colours, measuring 25.1 metres. Dorothea has 8.1 metres in the beam and a 2.7 m draft. Her papers read MMSI 367026930, call sign WDC4584. The Master's Mate Safety Initiative Network welcomes Dorothea — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for working captains
Know where the fleet is. Get Dorothea 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 Dorothea 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 Dorothea 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 Dorothea and switch it all on
Free to join · nothing to install to start · cancel anytime
About Dorothea
What kind of vessel is Dorothea?
Dorothea is a Fishing Tender flagged to United States of America.
What is Dorothea's MMSI?
Dorothea's MMSI is 367026930. Call sign WDC4584.
How big is Dorothea?
Dorothea is about 25.1 m long, 8.1 m on the beam, drawing 2.7 m.
Is Dorothea on the Master's Mate Safety Initiative Network?
Not yet. If Dorothea is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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