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.
Tank Barge
GCS 230
MMSI 366810470 · Call sign WDA4535
Not yet on Master's MateType
Tank Barge
Flag
USALength
80.3 m
Beam
15.2 m
Draft
6 m
Call sign
WDA4535
Official No.
022913
AIS reports
1
GCS 230 is a tank vessel listed on the the United States registry, spanning 80.3 metres. Her hull carries a 15.2 m beam and a draft measuring 6 metres. Her registration reads MMSI 366810470, call sign WDA4535. Claim GCS 230 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on GCS 230, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever GCS 230 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put GCS 230 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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim GCS 230 and switch it all on
Free to join · nothing to install to start · cancel anytime
About GCS 230
What kind of vessel is GCS 230?
GCS 230 is a Tank Barge flagged to United States of America.
What is GCS 230's MMSI?
GCS 230's MMSI is 366810470. Call sign WDA4535.
How big is GCS 230?
GCS 230 is about 80.3 m long, 15.2 m on the beam, drawing 6 m.
Is GCS 230 on the Master's Mate Safety Initiative Network?
Not yet. If GCS 230 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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