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.

Research Vessel

ONO

MMSI 366849490 · Call sign WDA7994

Not yet on Master's Mate

Type

Research Vessel

Flag

USA

Length

18.5 m

Beam

4.5 m

Draft

3.5 m

Call sign

WDA7994

Official No.

591139

AIS reports

ONO, a craft registered in the United States, measures 18.5 metres on deck. She has a beam measuring 4.5 metres and a draft of 3.5 m. She broadcasts as MMSI 366849490, call sign WDA7994. Put ONO on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.

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Is ONO your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

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

Wherever ONO 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

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

Joining the Safety Initiative Network doesn't just put ONO 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.

Worldwide Charts

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

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.

Onboard Cameras

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

Systems Monitoring

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

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 ONO and switch it all on

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Claim free → unlock everything

About ONO

What kind of vessel is ONO?

ONO is a Research Vessel flagged to United States of America.

What is ONO's MMSI?

ONO's MMSI is 366849490. Call sign WDA7994.

How big is ONO?

ONO is about 18.5 m long, 4.5 m on the beam, drawing 3.5 m.

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

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