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.
Mobile Offshore Drilling Unit
Q4000
MMSI 369550000 · Call sign WDM8543
Not yet on Master's MateType
Mobile Offshore Drilling Unit
Flag
USALength
95 m
Beam
56.2 m
Draft
24.5 m
Call sign
WDM8543
IMO
8767123
Official No.
1122763
AIS reports
4
Out of the United States, Q4000 is a 95-metre boat. Her hull carries 56.2 metres in the beam and a draft of 24.5 m. She's on record as MMSI 369550000, call sign WDM8543, IMO 8767123. Claim Q4000 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card
Is Q4000 your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Q4000 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Q4000 on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Q4000 and switch it all on
Free to join · nothing to install to start · cancel anytime
About Q4000
What kind of vessel is Q4000?
Q4000 is a Mobile Offshore Drilling Unit flagged to United States of America.
What is Q4000's MMSI?
Q4000's MMSI is 369550000. Call sign WDM8543. IMO 8767123.
How big is Q4000?
Q4000 is about 95 m long, 56.2 m on the beam, drawing 24.5 m.
Is Q4000 on the Master's Mate Safety Initiative Network?
Not yet. If Q4000 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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