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

Mr C

MMSI 366850390 · Call sign WDN5614

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

14.3 m

Beam

5.4 m

Draft

1.4 m

Call sign

WDN5614

Official No.

504705

AIS reports

Registered in the United States, Mr C is a 14.3-metre utility boat. Mr C has 5.4 metres in the beam and a 1.4-metre draft. On the registers she's MMSI 366850390, call sign WDN5614. Claim Mr C free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

Free forever · No credit card · for working boats

Built for boats that work — like Mr C.

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 Mr C 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 Mr C 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 Mr C and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About Mr C

What kind of vessel is Mr C?

Mr C is a Towing Vessel flagged to United States of America.

What is Mr C's MMSI?

Mr C's MMSI is 366850390. Call sign WDN5614.

How big is Mr C?

Mr C is about 14.3 m long, 5.4 m on the beam, drawing 1.4 m.

Is Mr C on the Master's Mate Safety Initiative Network?

Not yet. If Mr C is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).