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
Site Clearance I
MMSI 366924170 · Call sign WDB6416
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
29.9 m
Beam
8.2 m
Draft
4.2 m
Call sign
WDB6416
Official No.
1052907
AIS reports
1
On the American registry, Site Clearance I is a 29.9-metre work boat. Her hull carries 8.2 metres in the beam and a draft measuring 4.2 metres. Her registration reads MMSI 366924170, call sign WDB6416. Site Clearance I earns her keep on the water; the free Master's Mate Safety Initiative Network keeps a watching fleet and a distress mesh close at hand.
Free forever · No credit card · for working boats
Built for boats that work — like Site Clearance I.
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 Site Clearance I 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Site Clearance I 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 Site Clearance I and switch it all on
Free to join · nothing to install to start · cancel anytime
About Site Clearance I
What kind of vessel is Site Clearance I?
Site Clearance I is a Offshore Supply Vessel flagged to United States of America.
What is Site Clearance I's MMSI?
Site Clearance I's MMSI is 366924170. Call sign WDB6416.
How big is Site Clearance I?
Site Clearance I is about 29.9 m long, 8.2 m on the beam, drawing 4.2 m.
Is Site Clearance I on the Master's Mate Safety Initiative Network?
Not yet. If Site Clearance I is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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