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.
Unclassified
Tender Max
MMSI 367790540 · Call sign WDJ5714
Not yet on Master's MateType
Unclassified
Flag
USALength
14 m
Beam
3.7 m
Draft
1.2 m
Call sign
WDJ5714
Official No.
1216927
Hull ID
MCZ152591108
AIS reports
1
Tender Max is an American boat, 14 metres overall. She carries 3.7 metres in the beam and a 1.2-metre draft. Find her under MMSI 367790540, call sign WDJ5714. Tender Max belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Is Tender Max 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 Tender Max roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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Joining the Safety Initiative Network doesn't just put Tender Max 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 Tender Max and switch it all on
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About Tender Max
What kind of vessel is Tender Max?
Tender Max is a Unclassified flagged to United States of America.
What is Tender Max's MMSI?
Tender Max's MMSI is 367790540. Call sign WDJ5714.
How big is Tender Max?
Tender Max is about 14 m long, 3.7 m on the beam, drawing 1.2 m.
Is Tender Max on the Master's Mate Safety Initiative Network?
Not yet. If Tender Max is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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