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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 C. Terral

MMSI 368163710 · Call sign WDL7813

Not yet on Master's Mate
Type
Towing Vessel
Flag
USAUSA
Length
41 m
Beam
11.6 m
Draft
3.7 m
Call sign
WDL7813
Official No.
1307791
AIS reports
1

On the American registry, John C. Terral is a 41-metre working craft. Her hull carries a 11.6-metre beam and a draft of 3.7 m. She's listed under MMSI 368163710, call sign WDL7813. John C. Terral can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.

Free forever · No credit card · for working boats

Built for boats that work — like John C. Terral.

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 C. Terral 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 C. Terral 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 C. Terral and switch it all on
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About John C. Terral

What kind of vessel is John C. Terral?
John C. Terral is a Towing Vessel flagged to United States of America.
What is John C. Terral's MMSI?
John C. Terral's MMSI is 368163710. Call sign WDL7813.
How big is John C. Terral?
John C. Terral is about 41 m long, 11.6 m on the beam, drawing 3.7 m.
Is John C. Terral on the Master's Mate Safety Initiative Network?
Not yet. If John C. Terral is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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