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 (Inspected)
TM 20
MMSI 368134040 · Call sign WDL4709
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
44.2 m
Beam
15.2 m
Draft
2.9 m
Call sign
WDL4709
Official No.
630289
AIS reports
1
TM 20 is an American passenger craft — 44.2 metres overall. Below, she has a beam measuring 15.2 metres and a draft measuring 2.9 metres. Look for MMSI 368134040, call sign WDL4709. TM 20 is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard TM 20 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 TM 20 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 TM 20 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 TM 20 and switch it all on
Free to join · nothing to install to start · cancel anytime
About TM 20
What kind of vessel is TM 20?
TM 20 is a Passenger (Inspected) flagged to United States of America.
What is TM 20's MMSI?
TM 20's MMSI is 368134040. Call sign WDL4709.
How big is TM 20?
TM 20 is about 44.2 m long, 15.2 m on the beam, drawing 2.9 m.
Is TM 20 on the Master's Mate Safety Initiative Network?
Not yet. If TM 20 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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