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.
Industrial Vessel
Tranquillo
MMSI 369347000 · Call sign WDQ5081
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
57.1 m
Beam
16.2 m
Draft
5.8 m
Call sign
WDQ5081
IMO
9273454
Official No.
1151073
AIS reports
3
Tranquillo, a merchant vessel flying the American flag, measures 57.1 metres on deck. Her hull carries a 16.2-metre beam and a draft measuring 5.8 metres. She's listed under MMSI 369347000, call sign WDQ5081, IMO 9273454. Join Tranquillo to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on Tranquillo, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Tranquillo 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Tranquillo 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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 Tranquillo and switch it all on
Free to join · nothing to install to start · cancel anytime
About Tranquillo
What kind of vessel is Tranquillo?
Tranquillo is a Industrial Vessel flagged to United States of America.
What is Tranquillo's MMSI?
Tranquillo's MMSI is 369347000. Call sign WDQ5081. IMO 9273454.
How big is Tranquillo?
Tranquillo is about 57.1 m long, 16.2 m on the beam, drawing 5.8 m.
Is Tranquillo on the Master's Mate Safety Initiative Network?
Not yet. If Tranquillo is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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