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
GT 103
U.S. Official No. 560630
Not yet on Master's MateType
Tank Barge
Flag
USALength
50.3 m
Beam
11 m
Draft
3.1 m
First reported
Jun 2026
AIS reports
1
GT 103 is a tank ship flying the flag of the United States, spanning 50.3 metres. Below, she has a 11-metre beam and a draft measuring 3.1 metres. Find her under U.S. official number 560630. Bring GT 103 aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for commercial operators
Eyes on GT 103, 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 GT 103 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 GT 103 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 GT 103 and switch it all on
Free to join · nothing to install to start · cancel anytime
About GT 103
What kind of vessel is GT 103?
GT 103 is a Tank Barge flagged to United States of America.
What is GT 103's U.S. Official No.?
GT 103's U.S. Official No. is 560630.
How big is GT 103?
GT 103 is about 50.3 m long, 11 m on the beam, drawing 3.1 m.
Is GT 103 on the Master's Mate Safety Initiative Network?
Not yet. If GT 103 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.