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.
Offshore Supply Vessel
GULF FLEET NO. 18
U.S. Official No. 578912
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
52 m
Beam
11.6 m
Draft
4.5 m
First reported
Jun 2026
AIS reports
1
GULF FLEET NO. 18, an utility vessel hailing from the United States, measures 52 metres on deck. GULF FLEET NO. 18 has 11.6 metres in the beam and a 4.5-metre draft. She's listed under U.S. official number 578912. Put GULF FLEET NO. 18 on the free Master's Mate Safety Initiative Network and keep the working fleet looking out for each other.
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Built for boats that work — like GULF FLEET NO. 18.
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 GULF FLEET NO. 18 roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put GULF FLEET NO. 18 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 GULF FLEET NO. 18 and switch it all on
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About GULF FLEET NO. 18
What kind of vessel is GULF FLEET NO. 18?
GULF FLEET NO. 18 is a Offshore Supply Vessel flagged to United States of America.
What is GULF FLEET NO. 18's U.S. Official No.?
GULF FLEET NO. 18's U.S. Official No. is 578912.
How big is GULF FLEET NO. 18?
GULF FLEET NO. 18 is about 52 m long, 11.6 m on the beam, drawing 4.5 m.
Is GULF FLEET NO. 18 on the Master's Mate Safety Initiative Network?
Not yet. If GULF FLEET NO. 18 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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