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.

Offshore Supply Vessel

JO-MAC 14

MMSI 367351940 · Call sign WCY5202

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

18.8 m

Beam

7.9 m

Draft

2.1 m

Call sign

WCY5202

Official No.

644812

AIS reports

JO-MAC 14 is an American 18.8-metre utility boat. She carries a 7.9 m beam and a 2.1-metre draft. She's on record as MMSI 367351940, call sign WCY5202. JO-MAC 14 is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

Free forever · No credit card · for working boats

Built for boats that work — like JO-MAC 14.

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 JO-MAC 14 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 JO-MAC 14 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 JO-MAC 14 and switch it all on

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

Claim free → unlock everything

About JO-MAC 14

What kind of vessel is JO-MAC 14?

JO-MAC 14 is a Offshore Supply Vessel flagged to United States of America.

What is JO-MAC 14's MMSI?

JO-MAC 14's MMSI is 367351940. Call sign WCY5202.

How big is JO-MAC 14?

JO-MAC 14 is about 18.8 m long, 7.9 m on the beam, drawing 2.1 m.

Is JO-MAC 14 on the Master's Mate Safety Initiative Network?

Not yet. If JO-MAC 14 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).