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
SANDY B.
MMSI 367123210 · Call sign WDD3053
Not yet on Master's MateType
Towing Vessel
Flag
USALength
18.7 m
Beam
7.3 m
Draft
2.7 m
Call sign
WDD3053
Official No.
562531
AIS reports
1
SANDY B., an American harbour workboat, measures 18.7 metres on deck. Her hull carries a 7.3 m beam and a draft of 2.7 m. On the registers she's MMSI 367123210, call sign WDD3053. Working vessels like SANDY B. are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.
Free forever · No credit card · for working boats
Built for boats that work — like SANDY B..
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 SANDY B. 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 SANDY B. 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 SANDY B. and switch it all on
Free to join · nothing to install to start · cancel anytime
About SANDY B.
What kind of vessel is SANDY B.?
SANDY B. is a Towing Vessel flagged to United States of America.
What is SANDY B.'s MMSI?
SANDY B.'s MMSI is 367123210. Call sign WDD3053.
How big is SANDY B.?
SANDY B. is about 18.7 m long, 7.3 m on the beam, drawing 2.7 m.
Is SANDY B. on the Master's Mate Safety Initiative Network?
Not yet. If SANDY B. is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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