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.

Towing Vessel

JOHN A.DOWNS

U.S. Official No. 506198

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

34.6 m

Beam

9.7 m

Draft

4.4 m

First reported

Jun 2026

AIS reports

JOHN A.DOWNS, an utility boat wearing American colours, measures 34.6 metres on deck. She's built with 9.7 metres in the beam and a 4.4-metre draft. She's on record as U.S. official number 506198. JOHN A.DOWNS earns her keep on the water; the free Master's Mate Safety Initiative Network keeps a watching fleet and a distress mesh close at hand.

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Built for boats that work — like JOHN A.DOWNS.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

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

Wherever JOHN A.DOWNS roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

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

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

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.

Weather & Routing

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

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.

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About JOHN A.DOWNS

What kind of vessel is JOHN A.DOWNS?

JOHN A.DOWNS is a Towing Vessel flagged to United States of America.

What is JOHN A.DOWNS's U.S. Official No.?

JOHN A.DOWNS's U.S. Official No. is 506198.

How big is JOHN A.DOWNS?

JOHN A.DOWNS is about 34.6 m long, 9.7 m on the beam, drawing 4.4 m.

Is JOHN A.DOWNS on the Master's Mate Safety Initiative Network?

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