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
GM 13502
MMSI 338388000 · Call sign WXSA
Not yet on Master's MateType
Tank Barge
Flag
USALength
132.6 m
Beam
23.8 m
Draft
11.4 m
Call sign
WXSA
IMO
9328871
Official No.
652090
AIS reports
3
GM 13502, a tank vessel wearing American colours, measures 132.6 metres on deck. Her hull carries a 23.8 m beam and a draft of 11.4 m. Officially she's MMSI 338388000, call sign WXSA, IMO 9328871. GM 13502 can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for commercial operators
Eyes on GM 13502, 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 GM 13502 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 GM 13502 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 GM 13502 and switch it all on
Free to join · nothing to install to start · cancel anytime
About GM 13502
What kind of vessel is GM 13502?
GM 13502 is a Tank Barge flagged to United States of America.
What is GM 13502's MMSI?
GM 13502's MMSI is 338388000. Call sign WXSA. IMO 9328871.
How big is GM 13502?
GM 13502 is about 132.6 m long, 23.8 m on the beam, drawing 11.4 m.
Is GM 13502 on the Master's Mate Safety Initiative Network?
Not yet. If GM 13502 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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