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)

Dorothy

MMSI 366794520 · Call sign WDA3090

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

11 m

Beam

4 m

Draft

1.8 m

Call sign

WDA3090

Official No.

667406

AIS reports

Dorothy is a ferry vessel on the the United States registry, 11 metres LOA. She has a beam measuring 4 metres and a draft of 1.8 m. She's listed under MMSI 366794520, call sign WDA3090. For a boat that carries people, Dorothy can lean on the Master's Mate Safety Initiative Network — free distress alerting and a fleet that's paying attention.

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

Keep every soul aboard Dorothy 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 Dorothy 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 Dorothy 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 Dorothy and switch it all on

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

Claim free → unlock everything

About Dorothy

What kind of vessel is Dorothy?

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

What is Dorothy's MMSI?

Dorothy's MMSI is 366794520. Call sign WDA3090.

How big is Dorothy?

Dorothy is about 11 m long, 4 m on the beam, drawing 1.8 m.

Is Dorothy on the Master's Mate Safety Initiative Network?

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