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.

Passenger (Inspected)

APRIL M

MMSI 367390170 · Call sign WCB3241

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

14.6 m

Beam

4.4 m

Draft

1.6 m

Call sign

WCB3241

Official No.

599785

AIS reports

APRIL M is a passenger vessel on the the United States registry, 14.6 metres in length. APRIL M has a beam measuring 4.4 metres and a 1.6 m draft. On AIS she shows as MMSI 367390170, call sign WCB3241. APRIL M can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard APRIL M safe.

Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.

Switch on the safety stack — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever APRIL M 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 passenger & charter operators

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put APRIL M on the map. It hands you the full bridge:

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

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 APRIL M and switch it all on

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

Claim free → unlock everything

About APRIL M

What kind of vessel is APRIL M?

APRIL M is a Passenger (Inspected) flagged to United States of America.

What is APRIL M's MMSI?

APRIL M's MMSI is 367390170. Call sign WCB3241.

How big is APRIL M?

APRIL M is about 14.6 m long, 4.4 m on the beam, drawing 1.6 m.

Is APRIL M on the Master's Mate Safety Initiative Network?

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