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

Heng Long

MMSI 565521000

Not yet on Master's Mate

Flag

SGP

Length

243 m

IMO

9143532

AIS reports

Heng Long, a boat flying the Singaporean flag, measures 243 metres on deck. She's listed under MMSI 565521000, IMO 9143532. Add Heng Long to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

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Is Heng Long 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 Heng Long 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 Heng Long 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 Heng Long and switch it all on

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About Heng Long

What kind of vessel is Heng Long?

Heng Long is a vessel flagged to Singapore.

What is Heng Long's MMSI?

Heng Long's MMSI is 565521000. IMO 9143532.

How big is Heng Long?

Heng Long is about 243 m long.

Is Heng Long on the Master's Mate Safety Initiative Network?

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