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
Legs III
MMSI 367028570 · Call sign WDN2443
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
24 m
Beam
11.6 m
Draft
2.4 m
Call sign
WDN2443
IMO
8765785
Official No.
641221
AIS reports
2
Legs III is an utility vessel under American registration, 24 metres overall. She carries 11.6 metres in the beam and a 2.4-metre draft. Officially she's MMSI 367028570, call sign WDN2443, IMO 8765785. Legs III 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 Legs III.
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 Legs III 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 Legs III 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 Legs III and switch it all on
Free to join · nothing to install to start · cancel anytime
About Legs III
What kind of vessel is Legs III?
Legs III is a Offshore Supply Vessel flagged to United States of America.
What is Legs III's MMSI?
Legs III's MMSI is 367028570. Call sign WDN2443. IMO 8765785.
How big is Legs III?
Legs III is about 24 m long, 11.6 m on the beam, drawing 2.4 m.
Is Legs III on the Master's Mate Safety Initiative Network?
Not yet. If Legs III 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.