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.

Commercial Fishing Vessel

2 GRUMPY OL' MEN

MMSI 366980930 · Call sign WDK9667

Not yet on Master's Mate

Type

Commercial Fishing Vessel

Flag

USA

Length

17.2 m

Beam

6 m

Draft

1.8 m

Call sign

WDK9667

Official No.

592034

AIS reports

An American fishing trawler, 2 GRUMPY OL' MEN measures 17.2 metres. Her hull carries a 6 m beam and a draft of 1.8 m. On the registers she's MMSI 366980930, call sign WDK9667. 2 GRUMPY OL' MEN is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

Free forever · No credit card · for working captains

Know where the fleet is. Get 2 GRUMPY OL' MEN home safe.

Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.

Keep the fleet in sight — free →

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

Wherever 2 GRUMPY OL' MEN 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 captains

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

Joining the Safety Initiative Network doesn't just put 2 GRUMPY OL' MEN on the map. It hands you the full bridge:

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.

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.

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 2 GRUMPY OL' MEN and switch it all on

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Claim free → unlock everything

About 2 GRUMPY OL' MEN

What kind of vessel is 2 GRUMPY OL' MEN?

2 GRUMPY OL' MEN is a Commercial Fishing Vessel flagged to United States of America.

What is 2 GRUMPY OL' MEN's MMSI?

2 GRUMPY OL' MEN's MMSI is 366980930. Call sign WDK9667.

How big is 2 GRUMPY OL' MEN?

2 GRUMPY OL' MEN is about 17.2 m long, 6 m on the beam, drawing 1.8 m.

Is 2 GRUMPY OL' MEN on the Master's Mate Safety Initiative Network?

Not yet. If 2 GRUMPY OL' MEN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).