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.
Industrial Vessel
DRY DOCK 4
U.S. Official No. 560048
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
53.3 m
Beam
16.8 m
Draft
1.8 m
First reported
Jun 2026
AIS reports
1
DRY DOCK 4 is an American 53.3-metre commercial ship. Below, she has a 16.8 m beam and a draft of 1.8 m. Officially she's U.S. official number 560048. Sign DRY DOCK 4 up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card · for commercial operators
Eyes on DRY DOCK 4, 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 DRY DOCK 4 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 DRY DOCK 4 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 DRY DOCK 4 and switch it all on
Free to join · nothing to install to start · cancel anytime
About DRY DOCK 4
What kind of vessel is DRY DOCK 4?
DRY DOCK 4 is a Industrial Vessel flagged to United States of America.
What is DRY DOCK 4's U.S. Official No.?
DRY DOCK 4's U.S. Official No. is 560048.
How big is DRY DOCK 4?
DRY DOCK 4 is about 53.3 m long, 16.8 m on the beam, drawing 1.8 m.
Is DRY DOCK 4 on the Master's Mate Safety Initiative Network?
Not yet. If DRY DOCK 4 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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