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.
Towing Vessel
JOHN T. MC MAHAN
MMSI 366959430 · Call sign WBU2523
Not yet on Master's MateType
Towing Vessel
Flag
USALength
19.8 m
Beam
7.9 m
Draft
2.7 m
Call sign
WBU2523
IMO
8851326
Official No.
627050
AIS reports
1
JOHN T. MC MAHAN is an American working craft, 19.8 metres LOA. Below, she has a 7.9-metre beam and a draft of 2.7 m. Find her under MMSI 366959430, call sign WBU2523, IMO 8851326. There's a place for JOHN T. MC MAHAN on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card · for working boats
Built for boats that work — like JOHN T. MC MAHAN.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever JOHN T. MC MAHAN 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put JOHN T. MC MAHAN on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 JOHN T. MC MAHAN and switch it all on
Free to join · nothing to install to start · cancel anytime
About JOHN T. MC MAHAN
What kind of vessel is JOHN T. MC MAHAN?
JOHN T. MC MAHAN is a Towing Vessel flagged to United States of America.
What is JOHN T. MC MAHAN's MMSI?
JOHN T. MC MAHAN's MMSI is 366959430. Call sign WBU2523. IMO 8851326.
How big is JOHN T. MC MAHAN?
JOHN T. MC MAHAN is about 19.8 m long, 7.9 m on the beam, drawing 2.7 m.
Is JOHN T. MC MAHAN on the Master's Mate Safety Initiative Network?
Not yet. If JOHN T. MC MAHAN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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