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

Mack-A-Tac

MMSI 366815050 · Call sign WDA4963

Not yet on Master's Mate

Type

Commercial Fishing Vessel

Flag

USA

Length

10.6 m

Beam

3.7 m

Draft

2.1 m

Call sign

WDA4963

Official No.

960330

AIS reports

Mack-A-Tac, a commercial fishing vessel flying the American flag, measures 10.6 metres on deck. She carries 3.7 metres in the beam and a 2.1 m draft. Her papers read MMSI 366815050, call sign WDA4963. Join Mack-A-Tac to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for working captains

Know where the fleet is. Get Mack-A-Tac 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 Mack-A-Tac 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 Mack-A-Tac 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 Mack-A-Tac and switch it all on

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Claim free → unlock everything

About Mack-A-Tac

What kind of vessel is Mack-A-Tac?

Mack-A-Tac is a Commercial Fishing Vessel flagged to United States of America.

What is Mack-A-Tac's MMSI?

Mack-A-Tac's MMSI is 366815050. Call sign WDA4963.

How big is Mack-A-Tac?

Mack-A-Tac is about 10.6 m long, 3.7 m on the beam, drawing 2.1 m.

Is Mack-A-Tac on the Master's Mate Safety Initiative Network?

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