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.
Recreational
Chapter Three
MMSI 367155820 · Call sign WDD5261
Not yet on Master's MateType
Recreational
Flag
USALength
9.9 m
Beam
3.6 m
Draft
1.7 m
Call sign
WDD5261
Official No.
1114346
Hull ID
CTYC0821J001
AIS reports
1
Chapter Three flies the American flag — a 9.9-metre recreational boat. She's built with a beam of 3.6 m and a 1.7-metre draft. On AIS she shows as MMSI 367155820, call sign WDD5261. Sign Chapter Three 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 recreational captains
Keep Chapter Three looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Chapter Three 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Chapter Three on the map. It hands you the full bridge:
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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Chapter Three and switch it all on
Free to join · nothing to install to start · cancel anytime
About Chapter Three
What kind of vessel is Chapter Three?
Chapter Three is a Recreational flagged to United States of America.
What is Chapter Three's MMSI?
Chapter Three's MMSI is 367155820. Call sign WDD5261.
How big is Chapter Three?
Chapter Three is about 9.9 m long, 3.6 m on the beam, drawing 1.7 m.
Is Chapter Three on the Master's Mate Safety Initiative Network?
Not yet. If Chapter Three is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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