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.
Passenger Barge (Uninspected)
Manta Ray II
MMSI 367394270 · Call sign WDE7523
Not yet on Master's MateType
Passenger Barge (Uninspected)
Flag
USALength
10.2 m
Beam
3.7 m
Draft
1.6 m
Call sign
WDE7523
Official No.
510547
AIS reports
1
Manta Ray II, an American passenger craft, measures 10.2 metres on deck. Her hull carries a 3.7-metre beam and a draft measuring 1.6 metres. On the registers she's MMSI 367394270, call sign WDE7523. Manta Ray II is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Manta Ray II safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Manta Ray II 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Manta Ray II on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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 Manta Ray II and switch it all on
Free to join · nothing to install to start · cancel anytime
About Manta Ray II
What kind of vessel is Manta Ray II?
Manta Ray II is a Passenger Barge (Uninspected) flagged to United States of America.
What is Manta Ray II's MMSI?
Manta Ray II's MMSI is 367394270. Call sign WDE7523.
How big is Manta Ray II?
Manta Ray II is about 10.2 m long, 3.7 m on the beam, drawing 1.6 m.
Is Manta Ray II on the Master's Mate Safety Initiative Network?
Not yet. If Manta Ray II 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.