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.
Vessel
STL L1
MMSI 563036690
Not yet on Master's MateFlag
SGPLength
98.3 m
IMO
9799537
AIS reports
2
STL L1, a Singaporean boat, measures 98.3 metres on deck. Look for MMSI 563036690, IMO 9799537. The Master's Mate Safety Initiative Network welcomes STL L1 — free to join, cruiser-run, and always on watch.
Free forever · No credit card
Is STL L1 your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever STL L1 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put STL L1 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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim STL L1 and switch it all on
Free to join · nothing to install to start · cancel anytime
About STL L1
What kind of vessel is STL L1?
STL L1 is a vessel flagged to Singapore.
What is STL L1's MMSI?
STL L1's MMSI is 563036690. IMO 9799537.
How big is STL L1?
STL L1 is about 98.3 m long.
Is STL L1 on the Master's Mate Safety Initiative Network?
Not yet. If STL L1 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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