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
C-Discovery
MMSI 366747180 · Call sign WCY2843
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
67.5 m
Beam
17.1 m
Draft
6.4 m
Call sign
WCY2843
IMO
9203215
Official No.
1064439
AIS reports
3
C-Discovery is an American service vessel, measuring 67.5 metres. She carries a beam of 17.1 m and a 6.4 m draft. On AIS she shows as MMSI 366747180, call sign WCY2843, IMO 9203215. C-Discovery is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for working boats
Built for boats that work — like C-Discovery.
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 C-Discovery 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 C-Discovery 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 C-Discovery and switch it all on
Free to join · nothing to install to start · cancel anytime
About C-Discovery
What kind of vessel is C-Discovery?
C-Discovery is a Offshore Supply Vessel flagged to United States of America.
What is C-Discovery's MMSI?
C-Discovery's MMSI is 366747180. Call sign WCY2843. IMO 9203215.
How big is C-Discovery?
C-Discovery is about 67.5 m long, 17.1 m on the beam, drawing 6.4 m.
Is C-Discovery on the Master's Mate Safety Initiative Network?
Not yet. If C-Discovery is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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