Sign up free Dashboard Log out
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 CLAYTON

MMSI 367024980 · Call sign WRA5373

Not yet on Master's Mate
Type
Towing Vessel
Flag
USAUSA
Length
17 m
Beam
7.4 m
Draft
2.8 m
Call sign
WRA5373
Official No.
641329
AIS reports
1

On the American registry, JOHN CLAYTON is a 17-metre service vessel. She's built with a 7.4-metre beam and a 2.8 m draft. She broadcasts as MMSI 367024980, call sign WRA5373. Put JOHN CLAYTON on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.

Free forever · No credit card · for working boats

Built for boats that work — like JOHN CLAYTON.

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 CLAYTON 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 CLAYTON 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 CLAYTON and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About JOHN CLAYTON

What kind of vessel is JOHN CLAYTON?
JOHN CLAYTON is a Towing Vessel flagged to United States of America.
What is JOHN CLAYTON's MMSI?
JOHN CLAYTON's MMSI is 367024980. Call sign WRA5373.
How big is JOHN CLAYTON?
JOHN CLAYTON is about 17 m long, 7.4 m on the beam, drawing 2.8 m.
Is JOHN CLAYTON on the Master's Mate Safety Initiative Network?
Not yet. If JOHN CLAYTON is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

© 2026 Master’s Mate. All rights reserved.