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.

Recreational

Duality

MMSI 366834420 · Call sign WDA6625

Not yet on Master's Mate

Type

Recreational

Flag

USA

Length

12.8 m

Beam

7 m

Draft

2 m

Call sign

WDA6625

Official No.

1117969

AIS reports

Duality is an American weekend cruiser — 12.8 metres overall. Below, she has a beam measuring 7 metres and a draft of 2 m. Officially she's MMSI 366834420, call sign WDA6625. Give Duality the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

Free forever · No credit card · for recreational captains

Keep Duality looked after — even when you’re not aboard.

Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.

Look after her — claim free →

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

Wherever Duality 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 recreational captains

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

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

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Weather & Routing

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

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

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.

Distress Mesh

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

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim Duality and switch it all on

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

Claim free → unlock everything

About Duality

What kind of vessel is Duality?

Duality is a Recreational flagged to United States of America.

What is Duality's MMSI?

Duality's MMSI is 366834420. Call sign WDA6625.

How big is Duality?

Duality is about 12.8 m long, 7 m on the beam, drawing 2 m.

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

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