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.
Fishing Tender
Cape Calm
MMSI 366971260 · Call sign WDM9947
Not yet on Master's MateType
Fishing Tender
Flag
USALength
25.1 m
Beam
7.9 m
Draft
1.8 m
Call sign
WDM9947
IMO
7939523
Official No.
600793
AIS reports
2
An American offshore fishing boat, Cape Calm measures 25.1 metres. She's built with 7.9 metres in the beam and a 1.8 m draft. On the registers she's MMSI 366971260, call sign WDM9947, IMO 7939523. There's a place for Cape Calm on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card · for working captains
Know where the fleet is. Get Cape Calm home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Cape Calm 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 captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Cape Calm 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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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.
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 Cape Calm and switch it all on
Free to join · nothing to install to start · cancel anytime
About Cape Calm
What kind of vessel is Cape Calm?
Cape Calm is a Fishing Tender flagged to United States of America.
What is Cape Calm's MMSI?
Cape Calm's MMSI is 366971260. Call sign WDM9947. IMO 7939523.
How big is Cape Calm?
Cape Calm is about 25.1 m long, 7.9 m on the beam, drawing 1.8 m.
Is Cape Calm on the Master's Mate Safety Initiative Network?
Not yet. If Cape Calm is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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