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.

Vessel

Henry Christoffersen

MMSI 316004140

Not yet on Master's Mate

Flag

CAN

Length

46.7 m

IMO

8845559

AIS reports

Henry Christoffersen, a Canadian vessel, measures 46.7 metres on deck. On the registers she's MMSI 316004140, IMO 8845559. Bring Henry Christoffersen aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

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Is Henry Christoffersen 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.

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

Wherever Henry Christoffersen 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 Henry Christoffersen 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 Henry Christoffersen and switch it all on

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About Henry Christoffersen

What kind of vessel is Henry Christoffersen?

Henry Christoffersen is a vessel flagged to Canada.

What is Henry Christoffersen's MMSI?

Henry Christoffersen's MMSI is 316004140. IMO 8845559.

How big is Henry Christoffersen?

Henry Christoffersen is about 46.7 m long.

Is Henry Christoffersen on the Master's Mate Safety Initiative Network?

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