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
Spirit of the Sea
MMSI 368344460 · Call sign WDP3330
Not yet on Master's MateType
Recreational
Flag
USALength
13.6 m
Beam
4.5 m
Draft
1.6 m
Call sign
WDP3330
Official No.
1338585
AIS reports
1
An American leisure boat, Spirit of the Sea measures 13.6 metres. She's built with a 4.5 m beam and a 1.6 m draft. Her papers read MMSI 368344460, call sign WDP3330. Sign Spirit of the Sea 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 Spirit of the Sea 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 Spirit of the Sea 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 Spirit of the Sea 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 Spirit of the Sea and switch it all on
Free to join · nothing to install to start · cancel anytime
About Spirit of the Sea
What kind of vessel is Spirit of the Sea?
Spirit of the Sea is a Recreational flagged to United States of America.
What is Spirit of the Sea's MMSI?
Spirit of the Sea's MMSI is 368344460. Call sign WDP3330.
How big is Spirit of the Sea?
Spirit of the Sea is about 13.6 m long, 4.5 m on the beam, drawing 1.6 m.
Is Spirit of the Sea on the Master's Mate Safety Initiative Network?
Not yet. If Spirit of the Sea 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.